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  • Islands in asymptotically flat 2D gravity
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-03
    Thomas Hartman, Edgar Shaghoulian, Andrew Strominger

    The large-N limit of asymptotically flat two-dimensional dilaton gravity coupled to N free matter fields provides a useful toy model for semiclassical black holes and the information paradox. Analyses of the asymptotic information flux as given by the entanglement entropy show that it follows the Hawking curve, indicating that information is destroyed in these models. Recently, motivated by developments

    更新日期:2020-07-03
  • One-loop finiteness of Chiral Higher Spin Gravity
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-03
    Evgeny Skvortsov, Tung Tran

    One of the main ideas behind Higher Spin Gravities is that the higher spin symmetry is expected to leave no room for counterterms, thereby eliminating UV divergences that make the pure gravity non-renormalizable. However, until recently it has not been clear if such a mechanism is realized. We show that Chiral Higher Spin Gravity is one-loop finite, the crucial point being that all one-loop S-matrix

    更新日期:2020-07-03
  • Achronal averaged null energy condition for extremal horizons and (A)dS
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-03
    Felipe Rosso

    We prove the achronal averaged null energy condition for general quantum field theories in the near horizon geometry of spherical extremal black holes (i.e. AdS2× Sd−2), de Sitter and anti-de Sitter. The derivation follows from monotonicity of relative entropy after computing the modular hamiltonian of a null deformed region. For incomplete (but maximally extended) achronal null geodesics in AdS2×

    更新日期:2020-07-03
  • Dualities of 5 d gauge theories from S-duality
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-02
    Lakshya Bhardwaj

    We describe a general method to determine dualities between supersymmetric 5d gauge theories. The method is based on performing local S-dualities in the geometry associated to the gauge theory. We find that often a duality can be obtained by adding matter to both sides of a more primitive duality. This allows us to define the notion of irreducible dualities which cannot be obtained from more primitive

    更新日期:2020-07-03
  • Testing lepton flavor models at ESSnuSB
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-02
    Mattias Blennow, Monojit Ghosh, Tommy Ohlsson, Arsenii Titov

    We review and investigate lepton flavor models, stemming from discrete non- Abelian flavor symmetries, described by one or two free model parameters. First, we confront eleven one- and seven two-parameter models with current results on leptonic mixing angles from global fits to neutrino oscillation data. We find that five of the one- and five of the two-parameter models survive the confrontation test

    更新日期:2020-07-03
  • Measurement of energy flow, cross section and average inelasticity of forward neutrons produced in s $$ \sqrt{s} $$ = 13 TeV proton-proton collisions with the LHCf Arm2 detector
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-02
    O. Adriani, E. Berti, L. Bonechi, M. Bongi, R. D’Alessandro, S. Detti, M. Haguenauer, Y. Itow, K. Kasahara, H. Menjo, Y. Muraki, K. Ohashi, P. Papini, S. Ricciarini, T. Sako, N. Sakurai, K. Sato, T. Tamura, A. Tiberio, S. Torii, A. Tricomi, W.C. Turner, M. Ueno

    In this paper, we report the measurement of the energy flow, the cross section and the average inelasticity of forward neutrons (+ antineutrons) produced in \( \sqrt{s} \) = 13 TeV proton-proton collisions. These quantities are obtained from the inclusive differential production cross section, measured using the LHCf Arm2 detector at the CERN Large Hadron Collider. The measurements are performed in

    更新日期:2020-07-03
  • Analytic double-soft integrated subtraction terms for two massive emitters in a back-to-back kinematics
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-02
    Wojciech Bizoń, Maximilian Delto

    We consider the double-soft limit of QCD amplitudes with two massive quarks in a back-to-back kinematics accompanied by two soft partons. We integrate analytically the respective double-soft eikonal functions over the phase space of the two soft partons. Within the context of the nested soft-collinear subtraction scheme, our results may serve as one of the integrated subtraction terms needed for the

    更新日期:2020-07-03
  • Probing new physics with long-range neutrino interactions: an effective field theory approach
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-02
    Patrick D. Bolton, Frank F. Deppisch, Chandan Hati

    We investigate forces induced by the exchange of two light neutrinos be- tween Standard Model (SM) fermions in the presence of effective operators parametrising physics beyond the SM. We first set up a general framework in which we derive the long-range potential mediated by weakly interacting neutrinos in the SM, retaining both spin-independent and spin-dependent terms. We then derive neutrino-mediated

    更新日期:2020-07-03
  • Mass deformations of unoriented quiver theories
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-02
    Massimo Bianchi, Davide Bufalini, Salvo Mancani, Fabio Riccioni

    We study the interplay between mass deformations and unoriented projections of super-conformal quiver gauge theories resulting from D3-branes at (toric) Calabi-Yau singularities. We focus on simple orbifold cases (ℂ3/ℤ3 and ℂ3/ℤ4) and their non-orbifold descendants. This allows us to generalize the construction rules and clarify points that have been previously overlooked. In particular we spell out

    更新日期:2020-07-03
  • Holographic entanglement entropy and complexity of microstate geometries
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Alessandro Bombini, Giulia Fardelli

    We study holographic entanglement entropy and holographic complexity in a two-charge, \( \frac{1}{4} \)-BPS family of solutions of type IIB supergravity, controlled by one dimensionless parameter. All the geometries in this family are asymptotically AdS3×𝕊3×𝕋4 and, varying the parameter that controls them, they interpolate between the global AdS3× 𝕊3× 𝕋4 and the massless BTZ3× 𝕊3× 𝕋4 geometry

    更新日期:2020-07-02
  • Dynamics of Nambu monopole in two Higgs doublet models. Cosmological Monopole Collider
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-01
    Minoru Eto, Yu Hamada, Masafumi Kurachi, Muneto Nitta

    We study the dynamics of the Nambu monopole in two Higgs doublet models, which is a magnetic monopole attached by two topological Z strings (Z flux tubes) from two opposite sides. The monopole is a topologically stable solution of the equation of motions when the Higgs potential has global U (1) and ℤ2 symmetries. In this paper, we consider more general cases without the ℤ2 symmetry, and find that

    更新日期:2020-07-01
  • The hidden geometry of particle collisions
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-01
    Patrick T. Komiske, Eric M. Metodiev, Jesse Thaler

    We establish that many fundamental concepts and techniques in quantum field theory and collider physics can be naturally understood and unified through a simple new geometric language. The idea is to equip the space of collider events with a metric, from which other geometric objects can be rigorously defined. Our analysis is based on the energy mover’s distance, which quantifies the “work” required

    更新日期:2020-07-01
  • Black holes with synchronised Proca hair: linear clouds and fundamental non-linear solutions
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-01
    Nuno M. Santos, Carolina L. Benone, Luís C.B. Crispino, Carlos A.R. Herdeiro, Eugen Radu

    Recent studies have made key progress on the black hole/solitonic solutions of the Einstein-Proca system. Firstly, fully non-linear dynamical evolutions of the Kerr black hole superradiant instability, triggered by a Proca field, have shown the formation of a new equilibrium state, a spinning black hole with synchronised Proca hair. Secondly, non-linear evolutions of spinning Proca stars have established

    更新日期:2020-07-01
  • Factorizations for tree amplitudes in the double-cover framework: from gravity to other theories
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-01
    Kang Zhou

    In this paper, we demonstrate that the factorizations for tree amplitudes in the double-cover framework, for various theories, can be generated from the gravity amplitude in the double-cover prescription. Our method employs differential operators proposed by Cheung, Shen and Wen. Using our method, the factorized formulae for amplitudes of Yang-Mills theory, special Yang-Mills-scalar theory, and bi-adjoint

    更新日期:2020-07-01
  • Loop Amplitudes and Quantum Homotopy Algebras
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-01
    Branislav Jurčo, Tommaso Macrelli, Christian Sämann, Martin Wolf

    We derive a recursion relation for loop-level scattering amplitudes of La- grangian field theories that generalises the tree-level Berends-Giele recursion relation in Yang-Mills theory. The origin of this recursion relation is the homological perturbation lemma, which allows us to compute scattering amplitudes from minimal models of quantum homotopy algebras in a recursive way. As an application of

    更新日期:2020-07-01
  • Subleading power resummation of rapidity logarithms: the energy-energy correlator in N $$ \mathcal{N} $$ = 4 SYM
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-01
    Ian Moult, Gherardo Vita, Kai Yan

    We derive and solve renormalization group equations that allow for the resummation of subleading power rapidity logarithms. Our equations involve operator mixing into a new class of operators, which we term the “rapidity identity operators”, that will generically appear at subleading power in problems involving both rapidity and virtuality scales. To illustrate our formalism, we analytically solve

    更新日期:2020-07-01
  • Sparse modeling approach to obtaining the shear viscosity from smeared correlation functions
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-01
    Etsuko Itou, Yuki Nagai

    We propose the sparse modeling method to estimate the spectral function from the smeared correlation functions. We give a description of how to obtain the shear viscosity from the correlation function of the renormalized energy-momentum tensor (EMT) measured by the gradient flow method (C (t, τ )) for the quenched QCD at finite temperature. The measurement of the renormalized EMT in the gradient flow

    更新日期:2020-07-01
  • Interfaces and the extended Hilbert space of Chern-Simons theory
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-01
    Jackson R. Fliss, Robert G. Leigh

    The low energy effective field theories of (2 + 1) dimensional topological phases of matter provide powerful avenues for investigating entanglement in their ground states. In [1] the entanglement between distinct Abelian topological phases was investigated through Abelian Chern-Simons theories equipped with a set of topological boundary conditions (TBCs). In the present paper we extend the notion of

    更新日期:2020-07-01
  • The Λ b → Λ ∗ 1520 → N K ¯ ℓ + ℓ − $$ {\Lambda}_b\to {\Lambda}^{\ast }(1520)\left(\to N\overline{K}\right){\mathrm{\ell}}^{+}{\mathrm{\ell}}^{-} $$ decay at low-recoil in HQET
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-07-01
    Diganta Das, Jaydeb Das

    In this paper we discuss the Standard Model and new physics sensitivity of the \( {\Lambda}_b\to {\Lambda}^{\ast }(1520)\left(\to N\overline{K}\right){\mathrm{\ell}}^{+}{\mathrm{\ell}}^{-} \) decay at low-recoil, where ℓ± are massive leptons and \( N\overline{K}=\left\{{pK}^{-},n{\overline{K}}^0\right\} \). We provide a full angular distribution with a set of operators that includes the Standard Model

    更新日期:2020-07-01
  • A search for axion-like particles in light-by-light scattering at the CLIC
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-30
    S.C. İnan, A.V. Kisselev

    The virtual production of axion-like particles (ALPs) in the light-by-light scattering at the CLIC collider is studied. Both differential and total cross sections are calculated, assuming interaction of the ALP with photons via CP-odd term in the La­grangian. The 95% C.L. exclusion regions for the ALP mass and its coupling constant are given. By comparing our results with existing collider bounds,

    更新日期:2020-07-01
  • Improved opacity expansion for medium-induced parton splitting
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-30
    Yacine Mehtar-Tani, Konrad Tywoniuk

    We present a new expansion scheme to compute the rate for parton splittings in dense and finite QCD media. In contrast to the standard opacity expansion, our expansion is performed around the harmonic oscillator whose characteristic frequency depends on the typical transverse momentum scale generated in the splitting. The first two orders account for the high frequency regime that is dominated by single

    更新日期:2020-07-01
  • Dual conformal symmetry and iterative integrals in six dimensions
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-30
    L.V. Bork, R.M. Iakhibbaev, D.I. Kazakov, D.M. Tolkachev

    In this article, we continue the investigation of [1] regarding iterative properties of dual conformal integrals in higher dimensions. In d = 4, iterative properties of four and five point dual conformal integrals manifest themselves in the famous BDS ansatz conjecture. In [1] it was also conjectured that a similar structure of integrals may reappear in d = 6. We show that one can systematically, order

    更新日期:2020-07-01
  • Minimal flavor violation in the see-saw portal
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-30
    Daniele Barducci, Enrico Bertuzzo, Andrea Caputo, Pilar Hernandez

    We consider an extension of the Standard Model with two singlet leptons, with masses in the electroweak range, that induce neutrino masses via the see-saw mechanism, plus a generic new physics sector at a higher scale, Λ. We apply the minimal flavor violation (MFV) principle to the corresponding Effective Field Theory (νSMEFT) valid at energy scales E ≪ Λ. We identify the irreducible sources of lepton

    更新日期:2020-06-30
  • Dilaton gravity with a boundary: from unitarity to black hole evaporation
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-30
    Maxim Fitkevich, Dmitry Levkov, Yegor Zenkevich

    We point out that two-dimensional Russo-Susskind-Thorlacius (RST) model for evaporating black holes is locally equivalent — at the full quantum level — to flat-space Jackiw-Teitelboim (JT) gravity that was recently shown to be unitary. Globally, the two models differ by a reflective spacetime boundary added in the RST model. Treating the boundary as a local and covariant deformation of quantum JT theory

    更新日期:2020-06-30
  • O-plane couplings at order α′ 2 : one R-R field strength
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Mahboube Mashhadi, Mohammad R. Garousi

    It is known that the anomalous Chern-Simons (CS) coupling of Op-plane is not consistent with the T-duality transformations. Compatibility of this coupling with the T-duality requires the inclusion of couplings involving one R-R field strength. In this paper we find such couplings at order α′2. By requiring the R-R and NS-NS gauge invariances, we first find all independent couplings at order α′2. There

    更新日期:2020-06-30
  • Universality between vector-like and chiral quiver gauge theories: anomalies and domain walls
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Tin Sulejmanpasic, Yuya Tanizaki, Mithat Ünsal

    We study low-energy dynamics of [SU(N )]K chiral quiver gauge theories in connection with \( \mathcal{N} \) = 1 super Yang-Mills (SYM) theory, and quantum chromodynamics with bi-fundamental fermions (QCD(BF)). These theories can be obtained by ℤK orbifold projections of \( \mathcal{N} \) = 1 SU(N K ) SYM theory, but the perturbative planar equivalence does not extend nonperturbatively for K ≥ 3. In

    更新日期:2020-06-30
  • Towards B ¯ → X s γ $$ \overline{B}\to {X}_s\gamma $$ at the NNLO in QCD without interpolation in m c
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Miko-laj Misiak, Abdur Rehman, Matthias Steinhauser

    Strengthening constraints on new physics from the \( \overline{B}\to {X}_s\gamma \) branching ratio requires improving accuracy in the measurements and the Standard Model predictions. To match the expected Belle-II accuracy, Next-to-Next-to-Leading Order (NNLO) QCD corrections must be calculated without the so-far employed interpolation in the charm- quark mass mc. In the process of evaluating such

    更新日期:2020-06-30
  • Probing the holographic dilaton
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Daniel Elander, Maurizio Piai, John Roughley

    Many strongly coupled field theories admit a spectrum of gauge-invariant bound states that includes scalar particles with the same quantum numbers as the vacuum. The challenge naturally arises of how to characterise them. In particular, how can a dilaton — the pseudo-Nambu-Goldstone boson associated with approximate scale invariance — be distinguished from other generic light scalars with the same

    更新日期:2020-06-30
  • Weakly coupled conformal manifolds in 4 d
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Shlomo S. Razamat, Evyatar Sabag, Gabi Zafrir

    We classify \( \mathcal{N} \) = 1 gauge theories with simple gauge groups in four dimensions which possess a conformal manifold passing through weak coupling. A very rich variety of models is found once one allows for arbitrary representations under the gauge group. For each such model we detail the dimension of the conformal manifold, the conformal anomalies, and the global symmetry preserved on a

    更新日期:2020-06-30
  • The confining transition in the bosonic BMN matrix model
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Yuhma Asano, Samuel Kováčik, Denjoe O’Connor

    We study the confining/deconfining phase transition in the mass deformed Yang-Mills matrix model which is obtained by the dimensional reduction of the bosonic sector of the four-dimensional maximally supersymmetric Yang-Mills theory compactified on the three sphere, i.e. the bosonic BMN model. The 1/D (with D the number of matrices) expansion suggests that the model may have two closely separated transitions

    更新日期:2020-06-30
  • Asymptotic boundary conditions and square integrability in the partition function of AdS gravity
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Joel Acosta, Alan Garbarz, Andrés Goya, Mauricio Leston

    There has been renewed interest in the path-integral computation of the partition function of AdS3 gravity, both in the metric and Chern-Simons formulations. The one-loop partition function around Euclidean AdS3 turns out to be given by the vacuum character of Virasoro group. This stems from the work of Brown and Henneaux (BH) who showed that, in AdS3 gravity with sensible asymptotic boundary conditions

    更新日期:2020-06-29
  • N $$ \mathcal{N} $$ = 1 conformal duals of gauged E n MN models
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Shlomo S. Razamat, Gabi Zafrir

    We suggest three new \( \mathcal{N} \) = 1 conformal dual pairs. First, we argue that the \( \mathcal{N} \) = 2 E6 Minahan-Nemeschansky (MN) theory with a USp(4) subgroup of the E6 global symmetry conformally gauged with an \( \mathcal{N} \) = 1 vector multiplet and certain additional chiral multiplet matter resides at some cusp of the conformal manifold of an SU(2)5 quiver gauge theory. Second, we

    更新日期:2020-06-29
  • Disk, interval, point: on constructions of quantum field theories with holomorphic action functionals
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Nafiz Ishtiaque, Junya Yagi

    Bosonic quantum field theories with holomorphic action functionals are realized by two types of constructions involving supersymmetric quantum field theories, compactified on an interval in one type and compactified on a disk and deformed in the other. We establish the equivalence between the two types of constructions by reducing the disk to the interval and the interval to a point. As examples, we

    更新日期:2020-06-29
  • The large charge expansion and AdS/CFT
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Anton de la Fuente, Jann Zosso

    The scaling dimensions of charged operators in conformal field theory were recently computed in a large charge expansion. We verify this expansion in a dual AdS model. Specifically, we numerically construct solitonic boson star solutions of Einstein-Maxwell-Scalar theory in AdS4 and find that its mass at large charge reproduces the universal form of the lowest operator dimension in the large U(1) charge

    更新日期:2020-06-29
  • Gluing affine Yangians with bi-fundamentals
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-29
    Wei Li

    The affine Yangian of \( {\mathfrak{gl}}_1 \) is isomorphic to the universal enveloping algebra of \( {\mathcal{W}}_{1+\infty } \) and can serve as a building block in the construction of new vertex operator algebras. In [1], a two-parameter family generalization of \( \mathcal{N} \) = 2 supersymmetric \( {\mathcal{W}}_{\infty } \) algebra was constructed by “gluing” two affine Yangians of \( {\mathfrak{gl}}_1

    更新日期:2020-06-29
  • Erratum to: Dimension-six matrix elements for meson mixing and lifetimes from sum rules
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    M. Kirk, A. Lenz, T. Rauh

    Eq. (5.15) in the original paper used a wrong numerical.

    更新日期:2020-06-29
  • Scalar mass dependence of angular variables in tt¯ϕ$$ t\overline{t}\phi $$ production
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-25
    Duarte Azevedo, Rodrigo Capucha, António Onofre, Rui Santos

    In this paper we explore CP discrimination in the associated production of top-quark pairs (\( t\overline{t} \)) with a generic scalar boson (𝜙) at the LHC. We probe the CP-sensitivity of several observables for a varying scalar boson mass and CP-number, either CP-even (𝜙 = H ) or CP-odd (𝜙 = A), using dileptonic final states of the \( t\overline{t}\phi \) system, with 𝜙 →\( b\overline{b} \). We

    更新日期:2020-06-28
  • Dark Matter in scalar Sp( N $$ \mathcal{N} $$ ) gauge dynamics
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    Giacomo Landini, Jin-Wei Wang

    We consider a model with Sp dark gauge group and a scalar field in the fundamental representation, which leads to two co-stable DM candidates at the perturbative level thanks to a global U(1) accidental symmetry. After gauge confinement at low energy scale, only one of the two candidates is still stable. We compute the DM relic abundance by solving the Boltzmann equations numerically. The presence

    更新日期:2020-06-27
  • Cylinder partition function of the 6-vertex model from algebraic geometry
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    Zoltan Bajnok, Jesper Lykke Jacobsen, Yunfeng Jiang, Rafael I. Nepomechie, Yang Zhang

    We compute the exact partition function of the isotropic 6-vertex model on a cylinder geometry with free boundary conditions, for lattices of intermediate size, using Bethe ansatz and algebraic geometry. We perform the computations in both the open and closed channels. We also consider the partial thermodynamic limits, whereby in the open (closed) channel, the open (closed) direction is kept small

    更新日期:2020-06-27
  • Caustics bounding entanglement wedges
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    Marine De Clerck, Charles Rabideau, Niklas Tanger

    We study the caustics on the boundaries of entanglement wedges in the context of holography in asymptotically AdS3 spacetimes. These entanglement wedges play an important role in our understanding of the emergence of bulk locality. A procedure was proposed by Sanches and Weinberg for identifying boundary operators which are local in the bulk, which also applies to certain regions that lie beyond the

    更新日期:2020-06-27
  • Pion and kaon condensation at zero temperature in three-flavor χ PT at nonzero isospin and strange chemical potentials at next-to-leading order
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    Prabal Adhikari, Jens O. Andersen

    We consider three-flavor chiral perturbation theory (χPT) at zero temperature and nonzero isospin (μI) and strange (μS) chemical potentials. The effective potential is calculated to next-to-leading order (NLO) in the π±-condensed phase, the K±-condensed phase, and the \( {K}^0/{\overline{K}}^0 \)-condensed phase. It is shown that the transitions from the vacuum phase to these phases are second order

    更新日期:2020-06-27
  • Supersymmetric protection and the Swampland
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    Eran Palti, Cumrun Vafa, Timo Weigand

    For certain terms in the action, supersymmetry can forbid an infinite number of possible contributions. We study whether such protection can occur in quantum gravity even without sufficient supersymmetry. We focus on whether the superpotential can vanish exactly in four-dimensional \( \mathcal{N} \) = 1 theories, and if the prepotential can be exactly cubic in \( \mathcal{N} \) = 2 theories. We investigate

    更新日期:2020-06-27
  • Quiver gauge theories: beyond reflexivity
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    Jiakang Bao, Grace Beaney Colverd, Yang-Hui He

    Reflexive polygons have been extensively studied in a variety of contexts in mathematics and physics. We generalize this programme by looking at the 45 different lattice polygons with two interior points up to SL(2,ℤ) equivalence. Each corresponds to some affine toric 3-fold as a cone over a Sasaki-Einstein 5-fold. We study the quiver gauge theories of D3-branes probing these cones, which coincide

    更新日期:2020-06-27
  • 2HDM neutral scalars under the LHC
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    Felix Kling, Shufang Su, Wei Su

    Two Higgs Doublet Models (2HDM) provide a simple framework for new physics models with an extended Higgs sector. The current LHC results, including both direct searches for additional non-Standard Model (SM) Higgs bosons, as well as precision measurements of the SM-like Higgs couplings, already provide strong constraints on the 2HDM parameter spaces. In this paper, we examine those constraints for

    更新日期:2020-06-27
  • Updates on extraction of | V cb | and SM prediction of R ( D *) in B → D *ℓ ν ℓ decays
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    Sneha Jaiswal, Soumitra Nandi, Sunando Kumar Patra

    We update the standard model (SM) predictions of R(D*) using the latest results on the decay distributions in B → D∗ℓνℓ (ℓ = μ, e) by Belle collaboration, while extracting |Vcb| at the same time. Depending on the inputs used in the analysis, we define various fit scenarios. Although the central values of the predicted R(D*) in all the scenarios have reduced from its earlier predictions in 2017, the

    更新日期:2020-06-27
  • Muon g − 2 in Higgs-anomaly mediation
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-25
    Tsutomu T. Yanagida, Wen Yin, Norimi Yokozaki

    A simple model for the explanation of the muon anomalous magnetic moment was proposed by the present authors within the context of the minimal supersymmetric standard model [1, 2]: Higgs-anomaly mediation. In the setup, squarks, sleptons, and gauginos are massless at tree-level, but the Higgs doublets get large negative soft supersymmetry (SUSY) breaking masses squared \( {m}_{H_u}^2\simeq {m}_{H_d}^2<0

    更新日期:2020-06-27
  • Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at s $$ \sqrt{s} $$ = 13 TeV
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-24
    A. M. Sirunyan, A. Tumasyan, W. Adam, F. Ambrogi, T. Bergauer, M. Dragicevic, J. Erö, A. Escalante Del Valle, M. Flechl, R. Frühwirth, M. Jeitler, N. Krammer, I. Krätschmer, D. Liko, T. Madlener, I. Mikulec, N. Rad, J. Schieck, R. Schöfbeck, M. Spanring, W. Waltenberger, C.-E. Wulz, M. Zarucki, V. Drugakov, V. Mossolov, J. Suarez Gonzalez, M. R. Darwish, E. A. De Wolf, D. Di Croce, X. Janssen, A. Lelek

    Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric \( \left({\hat{d}}_{\mathrm{t}}\right) \) and chromomagnetic \( \left({\hat{\mu}}_{\mathrm{t}}\right) \) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The

    更新日期:2020-06-27
  • Canonical description of T-duality with NSNS background
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    J. Klusoň

    We study T-duality with non-zero components of NSNS two form field along directions we dualize with the help of canonical formalism. As a result of this procedure we determine generalized Buscher’s rules. We also apply the same procedure to the case of non-relativistic string.A preprint version of the article is available at ArXiv.

    更新日期:2020-06-26
  • Functional methods for Heavy Quark Effective Theory
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-26
    Timothy Cohen, Marat Freytsis, Xiaochuan Lu

    We use functional methods to compute one-loop effects in Heavy Quark Effective Theory. The covariant derivative expansion technique facilitates the efficient extraction of matching coefficients and renormalization group evolution equations. This paper pro- vides the first demonstration that such calculations can be performed through the algebraic evaluation of the path integral for the class of effective

    更新日期:2020-06-26
  • Symmetries in B → D ∗ ℓν angular observables
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-25
    Marcel Algueró, Sébastien Descotes-Genon, Joaquim Matias, Martín Novoa-Brunet

    We apply the formalism of amplitude symmetries to the angular distribution of the decays B → D∗ℓν for ℓ = e, μ, τ . We show that the angular observables used to describe the distribution of this class of decays are not independent in absence of New Physics contributing to tensor operators. We derive sets of relations among the angular coefficients of the decay distribution for the massless and massive

    更新日期:2020-06-26
  • Top quark pair production near threshold: single/double distributions and mass determination
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-25
    Wan-Li Ju, Guoxing Wang, Xing Wang, Xiaofeng Xu, Yongqi Xu, Li Lin Yang

    We investigate top quark pair production near the threshold where the pair invariant mass \( {M}_{t\overline{t}} \) approaches 2mt, which provides sensitive observables to extract the top quark mass mt. Using the effective field theory methods, we derive a factorization and resummation formula for kinematic distributions in the threshold limit up to the next-to- leading power, which resums higher order

    更新日期:2020-06-26
  • Search for dijet resonances in events with an isolated charged lepton using s $$ \sqrt{s} $$ = 13 TeV proton-proton collision data collected by the ATLAS detector
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-25
    G. Aad, B. Abbott, D. C. Abbott, A. Abed Abud, K. Abeling, D. K. Abhayasinghe, S. H. Abidi, O. S. AbouZeid, N. L. Abraham, H. Abramowicz, H. Abreu, Y. Abulaiti, B. S. Acharya, B. Achkar, S. Adachi, L. Adam, C. Adam Bourdarios, L. Adamczyk, L. Adamek, J. Adelman, M. Adersberger, A. Adiguzel, S. Adorni, T. Adye, A. A. Affolder, Y. Afik, C. Agapopoulou, M. N. Agaras, A. Aggarwal, C. Agheorghiesei, J.

    A search for dijet resonances in events with at least one isolated charged lepon is performed using 139 fb−1 of \( \sqrt{s} \) = 13 TeV proton-proton collision data recorded by the ATLAS detector at the LHC. The dijet invariant-mass (mjj) distribution constructed from events with at least one isolated electron or muon is searched in the region 0.22 < mjj< 6.3 TeV for excesses above a smoothly falling

    更新日期:2020-06-26
  • Proof of the classical soft graviton theorem in D = 4
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-25
    Arnab Priya Saha, Biswajit Sahoo, Ashoke Sen

    Classical subleading soft graviton theorem in four space-time dimensions determines the gravitational wave-form at late and early retarded time, generated during a scattering or explosion, in terms of the four momenta of the ingoing and outgoing objects. This result was ‘derived’ earlier by taking the classical limit of the quantum soft graviton theorem, and making some assumptions about how to deal

    更新日期:2020-06-26
  • Closed form fermionic expressions for the Macdonald index
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-25
    Omar Foda, Rui-Dong Zhu

    We interpret aspects of the Schur indices, that were identified with characters of highest weight modules in Virasoro (p, p′) = (2, 2k + 3) minimal models for k = 1, 2, . . . , in terms of paths that first appeared in exact solutions in statistical mechanics. From that, we propose closed-form fermionic sum expressions, that is, q, t-series with manifestly non-negative coefficients, for two infinite-series

    更新日期:2020-06-26
  • Symmetry enhancement and duality walls in 5d gauge theories
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-25
    Ivan Garozzo, Noppadol Mekareeya, Matteo Sacchi, Gabi Zafrir

    Gauge theories in four dimensions can exhibit interesting low energy phenomena, such as infrared enhancements of global symmetry. We explore a class of 4d \( \mathcal{N} \) = 1 gauge theories arising from a construction that is motivated by duality walls in 5d gauge theories. Their quiver descriptions bear a resemblance to 4d theories obtained by compactifying 6d \( \mathcal{N} \) = (1, 0) superconformal

    更新日期:2020-06-26
  • Non-Gaussianities and tensor-to-scalar ratio in non-local R 2 -like inflation
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-25
    Alexey S. Koshelev, K. Sravan Kumar, Anupam Mazumdar, Alexei A. Starobinsky

    In this paper we will study R2-like inflation in a non-local modification of gravity which contains quadratic in Ricci scalar and Weyl tensor terms with analytic infinite derivative form-factors in the action. It is known that the inflationary solution of the local R + R2 gravity remains a particular exact solution in this model. It was shown earlier that the power spectrum of scalar perturbations

    更新日期:2020-06-25
  • Effective gravitational couplings of four-dimensional N$$ \mathcal{N} $$ = 2 supersymmetric gauge theories
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-24
    Jan Manschot, Gregory W. Moore, Xinyu Zhang

    The low energy effective couplings of a four-dimensional \( \mathcal{N} \) = 2 supersymmetric gauge theory to topological invariants of the background gravitational field are described by two functions A and B. These two functions play an important role in the study of topo- logically twisted four-dimensional \( \mathcal{N} \) = 2 supersymmetric gauge theories and in the computation of central charges

    更新日期:2020-06-25
  • Non-linear flow modes of identified particles in Pb-Pb collisions at sNN$$ \sqrt{s_{\mathrm{NN}}} $$ = 5 . 02 TeV
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-24
    S. Acharya, D. Adamová, A. Adler, J. Adolfsson, M. M. Aggarwal, G. Aglieri Rinella, M. Agnello, N. Agrawal, Z. Ahammed, S. Ahmad, S. U. Ahn, A. Akindinov, M. Al-Turany, S. N. Alam, D. S. D. Albuquerque, D. Aleksandrov, B. Alessandro, H. M. Alfanda, R. Alfaro Molina, B. Ali, Y. Ali, A. Alici, A. Alkin, J. Alme, T. Alt, L. Altenkamper, I. Altsybeev, M. N. Anaam, C. Andrei, D. Andreou, H. A. Andrews,

    The pT-differential non-linear flow modes, v4,22, v5,32, v6,33 and v6,222 for π±, K±, \( {\mathrm{K}}_{\mathrm{S}}^0 \) , p + \( \overline{\mathrm{p}} \), Λ + \( \overline{\Lambda} \) and ϕ-meson have been measured for the first time at \( \sqrt{s_{\mathrm{NN}}} \) = 5.02 TeV in Pb-Pb collisions with the ALICE detector at the Large Hadron Collider. The results were obtained with a multi-particle technique

    更新日期:2020-06-25
  • Erratum to: New axion searches at flavor factories
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-23
    Xabier Cid Vidal, Alberto Mariotti, Diego Redigolo, Filippo Sala, Kohsaku Tobioka

    We correct here a mistake in the numerical prefactor of eq. (2.5) of the paper.

    更新日期:2020-06-25
  • The dual properties of chiral and isospin asymmetric dense quark matter formed of two-color quarks
    J. High Energy Phys. (IF 5.875) Pub Date : 2020-06-24
    T.G. Khunjua, K.G. Klimenko, R.N. Zhokhov

    In this paper the phase structure of dense baryon matter composed of u and d quarks with two colors has been investigated in the presence of baryon μB , isospin μI and chiral isospin μI5 chemical potentials in the framework of Nambu-Jona-Lasinio model with quark-antiquark and quark-quark interaction channels. In the chiral limit, it has been shown in the mean-field approximation that the duality between

    更新日期:2020-06-24
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