• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19
Laurent Freidel, Marc Geiller, Daniele Pranzetti

In the tetrad formulation of gravity, the so-called simplicity constraints play a central role. They appear in the Hamiltonian analysis of the theory, and in the Lagrangian path integral when constructing the gravity partition function from topological BF theory. We develop here a systematic analysis of the corner symplectic structure encoding the symmetry algebra of gravity, and perform a thorough

更新日期：2021-01-20
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19
V. G. Kupriyanov, M. Kurkov, P. Vitale

We construct a noncommutative kappa-Minkowski deformation of U(1) gauge theory, following a general approach, recently proposed in JHEP 08 (2020) 041. We obtain an exact (all orders in the non-commutativity parameter) expression for both the deformed gauge transformations and the deformed field strength, which is covariant under these transformations. The corresponding Yang-Mills Lagrangian is gauge

更新日期：2021-01-20
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19

In this paper, we classify four-point local gluon S-matrices in arbitrary dimensions. This is along the same lines as [1] where four-point local photon S-matrices and graviton S-matrices were classified. We do the classification explicitly for gauge groups SO(N) and SU(N) for all N but our method is easily generalizable to other Lie groups. The construction involves combining not-necessarily-permutation-symmetric

更新日期：2021-01-20
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19
V. Niarchos, C. Papageorgakis, A. Pini, E. Pomoni

Building on [1], we uncover new properties of type-B conformal anomalies for Coulomb-branch operators in continuous families of 4D $$\mathcal{N}$$ = 2 SCFTs. We study a large class of such anomalies on the Higgs branch, where conformal symmetry is spontaneously broken, and compare them with their counterpart in the CFT phase. In Lagrangian the- ories, the non-perturbative matching of the anomalies

更新日期：2021-01-20
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19
Joonho Kim, Seok Kim, Kimyeong Lee

We explore 6d (1, 0) superconformal field theories with SU(3) and SU(2) gauge symmetries which cascade after Higgsing to the E-string theory on a single M5 near an E8 wall. Specifically, we study the 2d $$\mathcal{N}$$ = (0, 4) gauge theories which describe self-dual strings of these 6d theories. The self-dual strings can be also viewed as instanton string solitons of 6d Yang-Mills theories. We find

更新日期：2021-01-20
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19
Thomas Gehrmann, Nigel Glover, Alexander Huss, James Whitehead

Precision measurements of diphoton distributions at the LHC display some tension with theory predictions, obtained at next-to-next-to-leading order (NNLO) in QCD. We revisit the theoretical uncertainties arising from the approximation of the experimental photon isolation by smooth-cone isolation, and from the choice of functional form for the renormalisation and factorisation scales. We find that the

更新日期：2021-01-20
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19
Minyuan Jiang, Teng Ma, Jing Shu

We describe the on-shell method to derive the Renormalization Group (RG) evolution of Wilson coefficients of high dimensional operators at one loop, which is a necessary part in the on-shell construction of the Standard Model Effective Field Theory (SMEFT), and exceptionally efficient based on the amplitude basis in hand. The UV divergence is obtained by firstly calculating the coefficients of scalar

更新日期：2021-01-20
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19
Shai M. Chester, Silviu S. Pufu

When the SU(N) $$\mathcal{N}$$ = 4 super-Yang-Mills (SYM) theory with complexified gauge coupling τ is placed on a round four-sphere and deformed by an $$\mathcal{N}$$ = 2-preserving mass parameter m, its free energy F (m, τ, $$\overline{\tau}$$) can be computed exactly using supersymmetric localization. In this work, we derive a new exact relation between the fourth derivative $${\partial}_m^4F\left(m 更新日期：2021-01-20 • J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19 Richard A. Battye, Apostolos Pilaftsis, Dominic G. Viatic The Two Higgs Doublet Model predicts the emergence of 3 distinct domain wall solutions arising from the breaking of 3 accidental global symmetries, Z2, CP1 and CP2, at the electroweak scale for specific choices of the model parameters. We present numerical kink solutions to the field equations in all three cases along with dynamical simulations of the models in (2+1) and (3+1) dimensions. For each 更新日期：2021-01-20 • J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19 Djuna Croon, Gilly Elor, Rebecca K. Leane, Samuel D. McDermott New light particles produced in supernovae can lead to additional energy loss and a consequent deficit in neutrino production in conflict with the neutrinos observed from Supernova 1987A (SN1987A). Contrary to the majority of previous SN1987A studies, we examine the impact of Z′ bosons, axions, and axion-like particles (ALPs) interacting with the muons produced in SN1987A. For the first time, we find 更新日期：2021-01-20 • J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-19 Amiya Mishra We consider Chern-Simons theory coupled to massive fundamental matter in three spacetime dimensions at finite temperature, in the large N limit. We compute several thermal correlators in this theory for both fermionic and bosonic matter separately. The results are computed in the large N ’t Hooft limit but for arbitrary values of the ’t Hooft coupling. Furthermore, we generalize the computations of 更新日期：2021-01-20 • J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-18 Erich Poppitz, F. David Wandler We explicitly calculate the topological terms that arise in IR effective field theories for SU(N) gauge theories on ℝ3 × 𝕊1 by integrating out all but the lightest modes. We then show how these terms match all global-symmetry ’t Hooft anomalies of the UV description. We limit our discussion to theories with abelian 0-form symmetries, namely those with one flavour of adjoint Weyl fermion and one or 更新日期：2021-01-20 • J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-18 Kai Schmitz Gravitational waves (GWs) from strong first-order phase transitions (SFOPTs) in the early Universe are a prime target for upcoming GW experiments. In this paper, I construct novel peak-integrated sensitivity curves (PISCs) for these experiments, which faithfully represent their projected sensitivities to the GW signal from a cosmological SFOPT by explicitly taking into account the expected shape of 更新日期：2021-01-20 • J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-18 Ryo Nagai, Norimi Yokozaki We consider supersymmetric (SUSY) models for the muon g − 2 anomaly without flavor violating masses at the tree-level. The models can avoid LHC constraints and the vacuum stability constraint in the stau-Higgs potential. Although large flavor violating processes are not induced within the framework of minimal SUSY standard model, once we adopt a seesaw model, sizable lepton flavor violating (LFV) processes 更新日期：2021-01-20 • J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-18 Omar Rodríguez-Tzompantzi We constructed a symplectic realization of the dynamic structure of two interacting spin-two fields in three dimensions. A significant simplification refers to the treatment of constraints: instead of performing a Hamiltonian analysis à la Dirac, we worked out a method that only uses properties of the pre-symplectic two-form matrix and its corresponding zero-modes to investigate the nature of constraints 更新日期：2021-01-19 • J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-18 Koichi Hattori, Hidetoshi Taya, Shinsuke Yoshida We study di-lepton production from a single photon in the presence of a strong constant magnetic field. By the use of the Ritus-basis formalism, we analytically evaluate the photon-to-di-lepton conversion vertex with fully taking into account the non-perturbative interactions between the produced fermions and the strong magnetic field. We show that the di-lepton spectrum becomes anisotropic with respect 更新日期：2021-01-19 • J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-18 Kimiko Yamashita, Cen Zhang, Shuang-Yong Zhou The positivity bounds, derived from the axiomatic principles of quantum field theory (QFT), constrain the signs of Wilson coefficients and their linear combinations in the Standard Model Effective Field Theory (SMEFT). The precise determination of these bounds, however, can become increasingly difficult as more and more SM modes and oper- ators are taken into account. We study two approaches that aim 更新日期：2021-01-19 • J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-18 Gourav Banerjee, Sudip Karan, Binata Panda We study one-loop covariant effective action of “non-minimally coupled” \( \mathcal{N}$$ = 1, d = 4 Einstein-Maxwell supergravity theory by heat kernel tool. By fluctuating the fields around the classical background, we study the functional determinant of Laplacian differential operator following Seeley-DeWitt technique of heat kernel expansion in proper time. We then compute the Seeley-DeWitt coefficients

更新日期：2021-01-19
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-18
Shan-Ming Ruan

We generalize the Fubini-Study method for pure-state complexity to generic quantum states by taking Bures metric or quantum Fisher information metric (QFIM) on the space of density matrices as the complexity measure. Due to Uhlmann’s theorem, we show that the mixed-state complexity exactly equals the purification complexity measured by the Fubini-Study metric for purified states but without explicitly

更新日期：2021-01-19
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-18
Diederik Roest

The special Galileon stands out amongst scalar field theories due to its soft limits, non-linear symmetries and scattering amplitudes. This prompts the question what the origin of its underlying symmetry is. We show that it is intimately connected to general relativity: the special Galileon is the Goldstone mode of the affine group, consisting of linear coordinate transformations, analogous to the

更新日期：2021-01-19
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-15
Yuta Hamada, Hikaru Kawai, Kin-ya Oda, Kei Yagyu

We investigate a model with two real scalar fields that minimally generates exponentially different scales in an analog of the Coleman-Weinberg mechanism. The classical scale invariance — the absence of dimensionful parameters in the tree-level action, required in such a scale generation — can naturally be understood as a special case of the multicritical-point principle. This two-scalar model can

更新日期：2021-01-18
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-15
Shaoqi Hou, Zong-Hong Zhu

The relation between gravitational memory effects and Bondi-Metzner-Sachs symmetries of the asymptotically flat spacetimes is studied in the scalar-tensor theory. For this purpose, the solutions to the equations of motion near the future null infinity are obtained in the generalized Bondi-Sachs coordinates with a suitable determinant condition. It turns out that the Bondi-Metzner-Sachs group is also

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-15
Yunlong Zheng

Two types of mimetic gravity models with higher derivatives of the mimetic field are analyzed in the Hamiltonian formalism. For the first type of mimetic gravity, the Ricci scalar only couples to the mimetic field and we demonstrate the number of degrees of freedom (DOFs) is three. Then in both Einstein frame and Jordan frame, we perform the Hamiltonian analysis for the extended mimetic gravity with

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-15
Jorge Mago, Anders Schreiber, Marcus Spradlin, Anastasia Volovich

We study cluster adjacency conjectures for amplitudes in maximally supersymmetric Yang-Mills theory. We show that the n-point one-loop NMHV ratio function satisfies Steinmann cluster adjacency. We also show that the one-loop BDS-like normalized NMHV amplitude satisfies cluster adjacency between Yangian invariants and final symbol entries up to 9-points. We present conjectures for cluster adjacency

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-15
Antoine Bourget, Amihay Hanany, Dominik Miketa

We study two types of discrete operations on Coulomb branches of 3d $$\mathcal{N}$$ = 4 quiver gauge theories using both abelianisation and the monopole formula. We generalise previous work on discrete quotients of Coulomb branches and introduce novel wreathed quiver theories. We further study quiver folding which produces Coulomb branches of non-simply laced quivers. Our methods explicitly describe

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-15
Rafael F. del Castillo, Miguel G. Echevarria, Yiannis Makris, Ignazio Scimemi

We study a transverse momentum dependent (TMD) factorization framework for the processes of dijet and heavy-meson pair production in deep-inelastic-scattering in an electron-proton collider, considering the measurement of the transverse momentum imbalance of the two hard probes in the Breit frame. For the factorization theorem we employ soft-collinear and boosted-heavy-quark effective field theories

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-14
Thomas G. Rizzo

Data from Planck measurements of the cosmic microwave background (CMB) place important constraints on models with light dark matter (DM) and light mediators especially when both lie in the mass range below ∼ 1 GeV. In models involving kinetic mixing where the dark photon acts as the mediator, these constraints are easily satisfied and the appropriate DM relic density achievable if the DM is, e.g.,

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-14
John Gargalionis, Raymond R. Volkas

Building UV completions of lepton-number-violating effective operators has proved to be a useful way of studying and classifying models of Majorana neutrino mass. In this paper we describe and implement an algorithm that systematises this model-building procedure. We use the algorithm to generate computational representations of all of the tree-level completions of the operators up to and including

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-14
Felipe F. Freitas, João Gonçalves, António P. Morais, Roman Pasechnik

In this paper, a model inspired by Grand Unification principles featuring three generations of vector-like fermions, new Higgs doublets and a rich neutrino sector at the low scale is presented. Using the state-of-the-art Deep Learning techniques we perform the first phenomenological analysis of this model focusing on the study of new charged vector-like leptons (VLLs) and their possible signatures

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-14

We compute sigma model solutions for rigidly rotating open strings suspended between giant gravitons in general LLM geometries. These solutions are confined to the LLM plane. These all have a dispersion relation for ∆ − J that is consistent with saturation of a BPS bound of the centrally extended spin chain. For the special case of circularly symmetric LLM geometries, we can further evaluate the amount

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-14
S. Abreu, B. Page, E. Pascual, V. Sotnikov

We compute the two-loop helicity amplitudes for the production of three photons at hadron colliders in QCD at leading-color. Using the two-loop numerical unitarity method coupled with analytic reconstruction techniques, we obtain the decomposition of the two-loop amplitudes in terms of master integrals in analytic form. These expressions are valid to all orders in the dimensional regulator. We use

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-14
Cheng Peng, Stefan Stanojevic

We study various properties of the soft modes in the $$\mathcal{N}$$ = 2 supersymmetric SYK model.A preprint version of the article is available at ArXiv.

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-14
Thomas G. Mertens, Gustavo J. Turiaci

We study two-dimensional Liouville gravity and minimal string theory on spaces with fixed length boundaries. We find explicit formulas describing the gravitational dressing of bulk and boundary correlators in the disk. Their structure has a striking resemblance with observables in 2d BF (plus a boundary term), associated to a quantum deformation of SL(2, ℝ), a connection we develop in some detail.

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-14
Ze Long Liu, Bianka Mecaj, Matthias Neubert, Xing Wang

Building on the recent derivation of a bare factorization theorem for the b-quark induced contribution to the h → γγ decay amplitude based on soft-collinear effective theory, we derive the first renormalized factorization theorem for a process described at subleading power in scale ratios, where λ = mb/Mh « 1 in our case. We prove two refactorization conditions for a matching coefficient and an operator

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-14
Evgeny Ivanov, Luca Mezincescu

We analyze the global symmetries of $$\mathcal{N}$$ = 4 supersymmetric mechanics in- volving 4n-dimensional Quaternion-Kähler (QK) 1D sigma models on projective spaces ℍHn and ℍPn as the bosonic core. All Noether charges associated with global worldline symmetries are shown to vanish as a result of equations of motion, which implies that we deal with a severely constrained hamiltonian system. The

更新日期：2021-01-15
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-14
David A. Lowe, David M. Ramirez

With a view to understanding extended-BMS symmetries in the framework of the AdS4/CFT3 correspondence, asymptotically AdS geometries are constructed with null impulsive shockwaves involving a discontinuity in superrotation parameters. The holographic dual is proposed to be a two-dimensional Euclidean defect conformal field localized on a particular timeslice in a three-dimensional conformal field theory

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
Gabi Zafrir

We propose that a certain 4d $$\mathcal{N}$$ = 1 SU(2) × SU(2) gauge theory flows in the IR to an $$\mathcal{N}$$ = 3 SCFT plus a single free chiral field. The specific $$\mathcal{N}$$ = 3 SCFT has rank 1 and a dimension three Coulomb branch operator. The flow is generically expected to land at the $$\mathcal{N}$$ = 3 SCFT deformed by the marginal deformation associated with said Coulomb branch

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
Mudassir Moosa, Pratik Rath, Vincent Paul Su

The Quantum Null Energy Condition (QNEC) is a lower bound on the stress-energy tensor in quantum field theory that has been proved quite generally. It can equivalently be phrased as a positivity condition on the second null shape derivative of the relative entropy Srel(ρ||σ) of an arbitrary state ρ with respect to the vacuum σ. The relative entropy has a natural one-parameter family generalization

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
Michèle Levi, Fei Teng

In this paper we derive for the first time the complete gravitational quartic-in-spin interaction of generic compact binaries at the next-to-leading order in the post-Newtonian (PN) expansion. The derivation builds on the effective field theory for gravitating spinning objects, and its recent extensions, in which new type of worldline couplings should be considered, as well as on the extension of the

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
Marc Barroso Mancha, Tomislav Prokopec, Bogumiła Świeżewska

We derive a general quantum field theoretic formula for the force acting on expanding bubbles of a first order phase transition in the early Universe setting. In the thermodynamic limit the force is proportional to the entropy increase across the bubble of active species that exert a force on the bubble interface. When local thermal equilibrium is attained, we find a strong friction force which grows

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13

We study the transition between phases at large R-charge on a conformal manifold. These phases are characterized by the behaviour of the lowest operator dimension ∆(QR) for fixed and large R-charge QR. We focus, as an example, on the D = 3, $$\mathcal{N}$$ = 2 Wess-Zumino model with cubic superpotential $$W= XYZ+\frac{\tau }{6}\left({X}^3+{Y}^3+{Z}^3\right)$$, and compute ∆(QR, τ) using the ϵ-expansion

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
Kazunobu Maruyoshi, Toshihiro Ota, Junya Yagi

We establish a correspondence between a class of Wilson-’t Hooft lines in four-dimensional $$\mathcal{N}$$ = 2 supersymmetric gauge theories described by circular quivers and transfer matrices constructed from dynamical L-operators for trigonometric quantum integrable systems. We compute the vacuum expectation values of the Wilson-’t Hooft lines in a twisted product space S1 × ϵ ℝ2 × ℝ by supersymmetric

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
Miguel Montero, Cumrun Vafa

We consider consequences of triviality of cobordism classes and anomaly cancellation in supergravity theories in d > 6. We argue that this leads to the existence of certain defects which we call “I-folds” (a generalization of orientifolds). The requirement that compactifications to lower dimensions involving these defects be anomaly free leads to conditions on the higher dimensional theory. We show

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
Hong Zhe Chen, Zachary Fisher, Juan Hernandez, Robert C. Myers, Shan-Ming Ruan

We study the doubly holographic model of [1] in the situation where a black hole in two-dimensional JT gravity theory is coupled to an auxiliary bath system at arbitrary finite temperature. Depending on the initial temperature of the black hole relative to the bath temperature, the black hole can lose mass by emitting Hawking radiation, stay in equilibrium with the bath or gain mass by absorbing thermal

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
Jingyi Chao, Thomas Schäfer

Stochastic fluid dynamics governs the long time tails of hydrodynamic correlation functions, and the critical slowing down of relaxation phenomena in the vicinity of a critical point in the phase diagram. In this work we study the role of multiplicative noise in stochastic fluid dynamics. Multiplicative noise arises from the dependence of transport coefficients, such as the diffusion constants for

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
J. Jesús Aguilera-Verdugo, Roger J. Hernández-Pinto, Germán Rodrigo, German F. R. Sborlini, William J. Torres Bobadilla

The numerical evaluation of multi-loop scattering amplitudes in the Feynman representation usually requires to deal with both physical (causal) and unphysical (non-causal) singularities. The loop-tree duality (LTD) offers a powerful framework to easily characterise and distinguish these two types of singularities, and then simplify analytically the underling expressions. In this paper, we work explicitly

更新日期：2021-01-14
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
O. G. Miranda, D. K. Papoulias, G. Sanchez Garcia, O. Sanders, M. Tórtola, J. W. F. Valle

In this erratum we revise the left panel of figure 7 in the published version of ref. [1]. The contour area corresponding to the calculation of the CsI data was evaluated with the wrong sign and has led to an unexpected stripe. Here, in figure 1 we provide the correct result which is in agreement with ref. [1]. We thank Carlo Giunti for pointing out this error.

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-13
Riccardo Argurio, Matteo Bertolini, Sebastián Franco, Eduardo García-Valdecasas, Shani Meynet, Antoine Pasternak, Valdo Tatitscheff

We study (orientifolded) toric Calabi-Yau singularities in search for D-brane configurations which lead to dynamical supersymmetry breaking at low energy. By exploiting dimer techniques we are able to determine that while most realizations lead to a Coulomb branch instability, a rather specific construction admits a fully stable supersymmetry breaking vacuum. We describe the geometric structure that

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-12
Isobel Kolbe, Kaushik Roy, Farid Salazar, Björn Schenke, Raju Venugopalan

We compute the differential cross-section for inclusive prompt photon+quark production in deeply inelastic scattering of electrons off nuclei at small x (e + A DIS) in the framework of the Color Glass Condensate effective field theory. The result is expressed as a convolution of the leading order (in the strong coupling αs) impact factor for the process and universal dipole matrix elements, in the

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-12
Simone Giacomelli, Mario Martone, Yuji Tachikawa, Gabi Zafrir

We carry out a systematic study of 4d $$\mathcal{N}$$ = 2 preserving S-folds of F-theory 7-branes and the worldvolume theories on D3-branes probing them. They consist of two infinite series of theories, which we denote following [1, 2] by $${\mathcal{S}}_{G,\mathrm{\ell}}^{(r)}$$ for ℓ = 2, 3, 4 and $${\mathcal{T}}_{G,\mathrm{\ell}}^{(r)}$$ for ℓ = 2, 3, 4, 5, 6. Their distinction lies in the

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-12
Laura Rado, Victor O. Rivelles, Renato Sánchez

We build string backgrounds for Yang-Baxter deformations of the AdS4 × ℂℙ3 superstring generated by r-matrices satisfying the classical Yang-Baxter equation. We obtain the metric and the NSNS two-form of the gravity dual corresponding to noncommutative and dipole deformations of ABJM theory, as well as a deformed background with Schrödinger symmetry. The first two backgrounds may also be found by TsT

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-12
Edoardo Lauria, Pedro Liendo, Balt C. van Rees, Xiang Zhao

For a single free scalar field in d ≥ 2 dimensions, almost all the unitary conformal defects must be ‘trivial’ in the sense that they cannot hold interesting dynamics. The only possible exceptions are monodromy defects in d ≥ 4 and co-dimension three defects in d ≥ 5. As an intermediate result we show that the n-point correlation functions of a conformal theory with a generalized free spectrum must

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-12
Robert de Mello Koch, Eunice Gandote, Augustine Larweh Mahu

Acting on operators with a bare dimension ∆ ∼ N2 the dilatation operator of U(N) $$\mathcal{N}$$ = 4 super Yang-Mills theory defines a 2-local Hamiltonian acting on a graph. Degrees of freedom are associated with the vertices of the graph while edges correspond to terms in the Hamiltonian. The graph has p ∼ N vertices. Using this Hamiltonian, we study scrambling and equilibration in the large N Yang-Mills

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-12
Daniel Moreno

We compute the contributions of dimension six two-quark operators to the non-leptonic decay width of heavy hadrons due to the flavor changing bottom-to-up-quark transition in the heavy quark expansion. Analytical expressions for the Darwin term ρD and the spin-orbit term ρLS are obtained with leading order accuracy.A preprint version of the article is available at ArXiv.

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-12
Eunseok Oh, Yunseok Seo, Taewon Yuk, Sang-Jin Sin

We show that we can realize the surface state together with the bulk state of various types of topological matters in holographic context, by considering various types of Lorentz symmetry breaking. The fermion spectral functions in the presence of order show features like the gap, pseudo-gap, flat disk bands and the Fermi-arc connecting the two Dirac cones, which are familiar in Weyl and Dirac materials

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-12
M. A. Shpot

We present an analytic calculation of the layer (parallel) susceptibility at the extraordinary transition in a semi-infinite system with a flat boundary. Using the method of integral transforms put forward by McAvity and Osborn [Nucl. Phys. B 455 (1995) 522] in the boundary CFT, we derive the coordinate-space representation of the mean-field propagator at the transition point. The simple algebraic

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-12
Gong jun Choi, Tsutomu T. Yanagida, Norimi Yokozaki

The extension of the Standard model (SM) with three heavy right handed neutrinos, a complex scalar and the gauged U(1)B−L symmetry (the minimal B − L model) is considered the most compelling minimal one: the presence and the out-of-equilibrium decay of the heavy right handed neutrinos can account for the small masses of the active neutrinos and the baryon asymmetry of the universe. A natural accompanying

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-12
Tomáš Husek, Kevin Monsálvez-Pozo, Jorge Portolés

Within the Standard Model Effective Field Theory framework, with operators up to dimension 6, we perform a model-independent analysis of the lepton-flavour-violating processes involving tau leptons. Namely, we study hadronic tau decays and ℓ-τ conversion in nuclei, with ℓ = e, μ. Based on available experimental limits, we establish constraints on the Wilson coefficients of the operators contributing

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-11
Amin Aboubrahim, Pran Nath, Raza M. Syed

We consider a class of unified models based on the gauge group SO(10) which with appropriate choice of Higgs representations generate in a natural way a pair of light Higgs doublets needed to accomplish electroweak symmetry breaking. In this class of models higher dimensional operators of the form matter-matter-Higgs-Higgs in the superpotential after spontaneous breaking of the GUT symmetry generate

更新日期：2021-01-13
• J. High Energy Phys. (IF 5.875) Pub Date : 2021-01-11
Xiaojun Yao, Weiyao Ke, Yingru Xu, Steffen A. Bass, Berndt Müller

We develop a framework of coupled transport equations for open heavy flavor and quarkonium states, in order to describe their transport inside the quark-gluon plasma. Our framework is capable of studying simultaneously both open and hidden heavy flavor observables in heavy-ion collision experiments and can account for both, uncorrelated and correlated recombination. Our recombination implementation

更新日期：2021-01-12
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