当前期刊: Nuclear Physics B Go to current issue    加入关注    本刊投稿指南
显示样式:        排序: IF: - GO 导出
我的关注
我的收藏
您暂时未登录!
登录
  • The LeClair-Mussardo series and nested Bethe Ansatz
    Nucl. Phys. B (IF 2.817) Pub Date : 2021-01-08
    A. Hutsalyuk; B. Pozsgay; L. Pristyák

    We consider correlation functions in one dimensional quantum integrable models related to the algebra symmetries gl(2|1) and gl(3). Using the algebraic Bethe Ansatz approach we develop an expansion theorem, which leads to an infinite integral series in the thermodynamic limit. The series is the generalization of the LeClair-Mussardo series to nested Bethe Ansatz systems, and it is applicable both to

    更新日期:2021-01-16
  • A hybrid renormalization scheme for quasi light-front correlations in large-momentum effective theory
    Nucl. Phys. B (IF 2.817) Pub Date : 2021-01-15
    Xiangdong Ji; Yizhuang Liu; Andreas Schäfer; Wei Wang; Yi-Bo Yang; Jian-Hui Zhang; Yong Zhao

    In large-momentum effective theory (LaMET), calculating parton physics starts from calculating coordinate-space-z correlation functions h˜(z,a,Pz) in a hadron of momentum Pz in lattice QCD. Such correlation functions involve both linear and logarithmic divergences in lattice spacing a, and thus need to be properly renormalized. We introduce a hybrid renormalization procedure to match these lattice

    更新日期:2021-01-16
  • Modular transformations of elliptic Feynman integrals
    Nucl. Phys. B (IF 2.817) Pub Date : 2021-01-11
    Stefan Weinzierl

    We investigate the behaviour of elliptic Feynman integrals under modular transformations. This has a practical motivation: Through a suitable modular transformation we can achieve that the nome squared is a small quantity, leading to fast numerical evaluations. Contrary to the case of multiple polylogarithms, where it is sufficient to consider just variable transformations for the numerical evaluations

    更新日期:2021-01-13
  • Scalar dark matter and leptogenesis in the minimal scotogenic model
    Nucl. Phys. B (IF 2.817) Pub Date : 2021-01-07
    Lavina Sarma; Pritam Das; Mrinal Kumar Das

    We study the minimal scotogenic model constituting an additional inert Higgs doublet and three sets of right-handed neutrinos. The scotogenic model connects dark matter, baryon asymmetry of the Universe and neutrino oscillation data. In our work, we obtain baryogenesis by the decay of TeV scale heavy neutral singlet fermion (N2). We primarily focus on the intermediate-mass region of dark matter within

    更新日期:2021-01-12
  • On Einstein-non linear-Maxwell-Yukawa de-Sitter black hole thermodynamics
    Nucl. Phys. B (IF 2.817) Pub Date : 2021-01-07
    M. Chabab; H. El Moumni; J. Khalloufi

    We investigate the thermodynamics of the Einstein-non linear-Maxwell-Yukawa black hole solution in de Sitter spacetime. After presenting the black hole solution and its horizons, we use different thermodynamical points of view to probe the phase structure of such a black hole, ranging from local, global thermodynamics to effective thermodynamical formalism with two horizons. Our analysis showed that

    更新日期:2021-01-12
  • Resurgence in the Bi-Yang-Baxter Model
    Nucl. Phys. B (IF 2.817) Pub Date : 2021-01-12
    Lucas Schepers; Daniel C. Thompson

    We study the integrable bi-Yang-Baxter deformation of the SU(2) principal chiral model (PCM) and its finite action uniton solutions. Under an adiabatic compactification on an S1, we obtain a quantum mechanics with an elliptic Lamé-like potential. We perform a perturbative calculation of the ground state energy in this quantum mechanics to large orders obtaining an asymptotic series. Using the Borel-Padé

    更新日期:2021-01-12
  • k-Inflation-corrected Einstein-Gauss-Bonnet gravity with massless primordial gravitons
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-29
    S.D. Odintsov; V.K. Oikonomou; F.P. Fronimos

    In the present paper, we study the inflationary phenomenology of a k-inflation corrected Einstein-Gauss-Bonnet theory. Non-canonical kinetic terms are known for producing Jean instabilities or superluminal sound wave velocities in the aforementioned era, but we demonstrate in this work that by adding Gauss-Bonnet string corrections and assuming that the non-canonical kinetic term ωXγ is in quadratic

    更新日期:2021-01-08
  • Massive kite diagrams with elliptics
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-30
    M.A. Bezuglov; A.I. Onishchenko; O.L. Veretin

    We present the results for two-loop massive kite master integrals with elliptics in terms of iterated integrals with algebraic kernels. The key ingredients are new integral representations for sunset subgraphs in d=4−2ε and d=2−2ε dimensions together with differential equations for considered kite master integrals in A+Bε form. The obtained results can be easily generalized to all orders in ε-expansion

    更新日期:2021-01-07
  • Double cover of modular S4 for flavour model building
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-29
    P.P. Novichkov; J.T. Penedo; S.T. Petcov

    We develop the formalism of the finite modular group Γ4′≡S4′, a double cover of the modular permutation group Γ4≃S4, for theories of flavour. The integer weight k>0 of the level 4 modular forms indispensable for the formalism can be even or odd. We explicitly construct the lowest-weight (k=1) modular forms in terms of two Jacobi theta constants, denoted as ε(τ) and θ(τ), τ being the modulus. We show

    更新日期:2021-01-07
  • K3 mirror symmetry, Legendre family and Deligne's conjecture for the Fermat quartic
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-30
    Wenzhe Yang

    In this paper, we will study the connections between the mirror symmetry of K3 surfaces and the geometry of the Legendre family of elliptic curves. We will prove that the mirror map of the Dwork family is equal to the period map of the Legendre family. This result provides an interesting explanation to the modularities of counting functions for K3 surfaces from the mirror symmetry point of view. We

    更新日期:2021-01-06
  • Signatures of complex new physics in b→cτν¯ transitions
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-29
    Suman Kumbhakar

    The anomalies in the measurements of RD and RD⁎ continue to provide motivation for physics beyond the Standard Model. In this work, we assume the new physics Wilson coefficients to be complex and find their values by doing a global fit to the present b→cτν¯ data. We find that the number of allowed solutions depend on the choice of the upper limit on Br(Bc→τν¯). We find that the forward-backward asymmetries

    更新日期:2021-01-04
  • Axion-radiation conversion by super and normal conductors
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-29
    Aiichi Iwazaki

    We have proposed a method for the detection of dark matter axion. It uses superconductor under strong magnetic field. As is well known, the dark matter axion induces oscillating electric field under magnetic field. The electric field is proportional to the magnetic field and makes charged particles oscillate in conductors. Then, radiations of electromagnetic fields are produced. Radiation flux depends

    更新日期:2021-01-04
  • Probabilistic cellular automata for interacting fermionic quantum field theories
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-29
    C. Wetterich

    A classical local cellular automaton can describe an interacting quantum field theory for fermions. We construct a simple classical automaton for a particular version of the Thirring model with imaginary coupling. This interacting fermionic quantum field theory obeys a unitary time evolution and shows all properties of quantum mechanics. Classical cellular automata with probabilistic initial conditions

    更新日期:2021-01-04
  • Covariant propagator and chiral power counting
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-24
    Zhou Liu; Li-Hong Wen; Ji-Feng Yang

    Some one-loop diagrams with one and two external baryons/nucleons are revisited using covariant baryon propagators in chiral effective theory. We showed that it is enough to separate and subtract all the local terms that violate chiral power counting to recover chiral power counting, no need to introduce extra operations. The structures of leading chiral corrections and IR enhancement or threshold

    更新日期:2020-12-30
  • Gamma function solutions to the star-triangle equation
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-28
    Ege Eren; Ilmar Gahramanov; Shahriyar Jafarzade; Gonenc Mogol

    In the paper, we clarify some relations between solutions to the star-triangle equation via the gauge/YBE correspondence. We consider two solutions to the star-triangle relation in terms of Euler's gamma function. We derive these solutions from the reduction of certain basic and hyperbolic hypergeometric integral identities. These identities can be interpreted as equality of the supersymmetric partition

    更新日期:2020-12-30
  • Topological phase transitions in four dimensions
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-28
    Nicolò Defenu; Andrea Trombettoni; Dario Zappalà

    We show that four-dimensional systems may exhibit a topological phase transition analogous to the well-known Berezinskii-Kosterlitz-Thouless vortex unbinding transition in two-dimensional systems. We study a suitable generalization of the sine-Gordon model in four dimensions and the renormalization group flow equation of its couplings, showing that the critical value of the frequency is the square

    更新日期:2020-12-28
  • Virasoro blocks at large exchange dimension
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-17
    Carlos Cardona

    In this paper, we analyze Virasoro conformal blocks in the limit when the operator exchange dimension is taking to be large in comparison with the other parameters dependence of the block. We do this by using Zamolodchikov's recursion relations. We found a dramatically simplified solution at leading order in an inverse power expansion in large exchange conformal dimension in terms of a quasi-modular

    更新日期:2020-12-23
  • Radiative generation of realistic neutrino mixing with A4
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-17
    Soumita Pramanick

    Radiative generation of realistic mixing in neutrino sector is studied at one-loop level in a scotogenic A4×Z2 symmetric framework. A scheme of obtaining non-zero θ13 through small mass splitting in right-handed neutrino sector is proposed. The model consists of three right-handed neutrinos, two of which were required to be degenerate in masses to yield the common structure of the left-handed neutrino

    更新日期:2020-12-22
  • Closed algebras for higher rank, non-Abelian tensor gauge fields
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-21
    Spyros Konitopoulos

    A systematic method is presented for the construction and classification of algebras of gauge transformations for arbitrary high rank tensor gauge fields. For any tensor gauge field of a given rank, the gauge transformation will be stated, in a generic way, via an ansatz that contains all the possible terms, with arbitrary coefficients and the maximum number of tensor gauge functions. Although the

    更新日期:2020-12-22
  • Towards Yang-Baxter integrability of quantum crystal melting: From Kagome lattice to vertex models
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-18
    Thiago Araujo

    This paper considers aspects of a Kagome lattice system with states classified by plane partitions. Using two sets of free fermions, we rewrite the lattice in terms of two families of spin chains. In this formalism, the quantum crystals Hamiltonian becomes more transparent, and we determine expressions for the first 3 levels of plane partition states. A classical statistical model associated to local

    更新日期:2020-12-22
  • Generalized Ashtekar variables for Palatini f(R) models
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-17
    Flavio Bombacigno; Simon Boudet; Giovanni Montani

    We consider special classes of Palatini f(R) theories, featured by additional Loop Quantum Gravity inspired terms, with the aim of identifying a set of modified Ashtekar canonical variables, which still preserve the SU(2) gauge structure of the standard theory. In particular, we allow for affine connection to be endowed with torsion, which turns out to depend on the additional scalar degree affecting

    更新日期:2020-12-21
  • Universal Baxter TQ-relations for open boundary quantum integrable systems
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-17
    Zengo Tsuboi

    Based on properties of the universal R-matrix, we derive universal Baxter TQ-relations for quantum integrable systems with (diagonal) open boundaries associated with Uq(sl2ˆ). The Baxter TQ-relations for the open XXZ-spin chain are images of these universal Baxter TQ-relations.

    更新日期:2020-12-21
  • Constraints on the charged-current non-standard neutrino interactions induced by the gauge boson W′
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-17
    Chong Xing Yue; Xue Jia Cheng

    Many new physics scenarios predict the existence of the extra charged gauge boson W′, which can induce the charged-current (CC) non-standard neutrino interactions (NSI). We investigate the constraints on the CC NSI in model-independent fashion via considering the W′ contributions to the lepton flavor violating (LFV) decays ℓi→ℓjγ, the pure leptonic flavor conservation (FC) decays ℓi→ℓjνiνj¯, leptonic

    更新日期:2020-12-20
  • Non-global logarithms in hadron collisions at Nc = 3
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-09
    Yoshitaka Hatta; Takahiro Ueda

    We calculate the rapidity gap survival probability associated with the Higgs decay and Higgs plus dijet production in proton-proton collisions by resumming the leading non-global logarithms without any approximation to the number of colors. For dijet production, depending on partonic subprocesses, the probability involves various ‘color multipoles’, i.e., the product of 4 (qq→qq) or 6 (qg→qg) or 8

    更新日期:2020-12-17
  • Topologically stable, finite-energy electroweak-scale monopoles
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-13
    P.Q. Hung

    The existence of a magnetic monopole, if it exists, remains elusive. Experimental searches have been carried out and are continuing in this quest. Of great uncertainty is the mass of the monopole which is model-dependent and ranging from some Grand Unified scale to the electroweak scale. In this paper, we propose a model where topologically stable, finite-energy monopoles à la 't Hooft-Polyakov could

    更新日期:2020-12-17
  • Universal thermodynamic relations with constant corrections for rotating AdS black holes
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-15
    Shao-Wen Wei; Ke Yang; Yu-Xiao Liu

    In Goon and Penco (2020) [17], a universal relation between corrections to entropy and extremality was proposed. The relation was also found to exactly hold for the four-dimensional charged AdS black hole. In this paper, we extend the study to the rotating BTZ and Kerr-AdS black holes when a constant correction to General Relativity is considered for the first time. The entropy and extremality bound

    更新日期:2020-12-17
  • Threshold effects on prediction for proton decay in non-supersymmetric E6 GUT with intermediate trinification symmetry
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-30
    Chandini Dash; Snigdha Mishra; Sudhanwa Patra; Purushottam Sahu

    We consider a non-supersymmetric E6 Grand Unified Theory (GUT) with intermediate trinification symmetry SU(3)C×SU(3)L×SU(3)R×D (D denoted as D-parity for discrete left-right symmetry) and study the effect of one-loop threshold corrections arising due to every class of superheavy particles (scalars, fermions and vectors). It is observed that, the intermediate mass scale MI and sin2⁡θW remain unaffected

    更新日期:2020-12-16
  • Inert doublet as multicomponent dark matter
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-14
    Amalia Betancur; Guillermo Palacio; Andrés Rivera

    In this work, we study multicomponent dark sectors comprised of a fermionic and a scalar dark matter candidate. In the scalar sector, we mostly focus on the Inert Doublet Model while in the fermionic sector we study three different models. For all of them, we investigate the impact that dark matter conversion and regular WIMP dark matter annihilating processes have on the relic abundance. We mostly

    更新日期:2020-12-16
  • Superconformal index with surface defects for class Sk
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-11
    Yuto Ito; Yutaka Yoshida

    We study surface defects in 4d N=1 SU(N) superconformal gauge theories of class Sk obtained from the 6d (1,0) theories of type AN−1, which are worldvolume theories on N M5-branes at C2/Zk singularities, compactified on Riemann surfaces with punctures. We evaluate the superconformal indices with surface defects for the orbifold of linear quiver gauge theories by two methods. First we apply a method

    更新日期:2020-12-14
  • Dynamical Majorana neutrino masses and axions II: Inclusion of anomaly terms and axial background
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-10
    Nick E. Mavromatos; Alex Soto

    We extend the study of a previous publication [1] on Schwinger-Dyson dynamical mass generation for fermions and pseudoscalar fields (axion-like particles (ALP)), in field theories containing Yukawa type interactions between the fermions and ALPs, by incorporating anomaly terms and/or (constant) axial background fields. The latter are linked to some Lorentz-(and CPT-)violating scenarios for leptogenesis

    更新日期:2020-12-10
  • On the equivalence of Batyrev and BHK mirror symmetry constructions
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-09
    Alexander Belavin; Boris Eremin

    We consider the connection between two constructions of the mirror partner for the Calabi-Yau orbifold. This orbifold is defined as a quotient by some suitable subgroup G of the phase symmetries of the hypersurface XM in the weighted projective space, cut out by a quasi-homogeneous polynomial WM. The first, Berglund–Hübsch–Krawitz (BHK) construction, uses another weighted projective space and the quotient

    更新日期:2020-12-09
  • Prospective constraints on anomalous Higgs boson interactions in an effective Lagrangian via diphoton production at FCC-hh
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-09
    H. Denizli; A. Senol

    We study the CP-conserving and CP-violating dimension-six operators of Higgs-gauge boson couplings via pp→γγ+n-jet signal process in a strongly interacting light Higgs based effective field theory framework at the center of mass energy of 100 TeV. In order to perform a simulation which includes realistic detector effects, the signal events in the existence of c¯γ, c˜γ, c¯g and c˜g Wilson coefficients

    更新日期:2020-12-09
  • U(1) spin Chern-Simons theory and Arf invariants in two dimensions
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-08
    Takuya Okuda; Koichi Saito; Shuichi Yokoyama

    The level-k U(1) Chern-Simons theory is a spin topological quantum field theory for k odd. Its dynamics is captured by the 2d CFT of a compact boson with a certain radius. Recently it was recognized that a dependence on the 2d spin structure can be given to the CFT by modifying it using the so-called Arf invariant. We demonstrate that one can reorganize the torus partition function of the modified

    更新日期:2020-12-08
  • Flavoured CP-asymmetry at the effective neutrino mass floor
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-08
    Nimmala Narendra; Narendra Sahu; S. Uma Sankar

    Both neutrinoless double beta decay and leptogenesis require neutrinos to be Majorana fermions. A relation between these two phenomena can be derived once the mechanism of neutrino mass generation is specified. Using the current data from the neutrino oscillations, we constrain the Majorana phases of the neutrino mixing matrix by minimising the effective neutrino mass in neutrinoless double beta decay

    更新日期:2020-12-08
  • Holographic dual of the weak gravity conjecture
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-07
    Brett McInnes

    The much-discussed Weak Gravity Conjecture is interesting and important in both the asymptotically flat and the asymptotically AdS contexts. In the latter case, it is natural to ask what conditions it (and the closely related Cosmic Censorship principle) imposes, via gauge-gravity duality, on the boundary field theory. We find that these conditions take the form of lower bounds on the number of colours

    更新日期:2020-12-07
  • Stability in the higher derivative Abelian gauge field theories
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-04
    Jialiang Dai

    We present an exact derivation of conserved tensors associated to the higher-order symmetries in the higher derivative Abelian gauge field theories. In our model, the wave operator of the derived theory is a n-th order polynomial expressed in terms of the usual Maxwell operator. Relying on this formalism and utilizing the extension of Noether's theorem, we acquire a series of conserved second-rank

    更新日期:2020-12-04
  • Charged 4D Einstein-Gauss-Bonnet-AdS black holes: Shadow, energy emission, deflection angle and heat engine
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-12-04
    B. Eslam Panah; Kh. Jafarzade; S.H. Hendi

    Recently, there has been a surge of interest in the 4D Einstein-Gauss-Bonnet (4D EGB) gravity theory which bypasses the Lovelock theorem and avoids Ostrogradsky's instability. Such a novel theory has nontrivial dynamics and presents several predictions for cosmology and black hole physics. Motivated by recent astrophysical observations and the importance of anti-de Sitter spacetime, we investigate

    更新日期:2020-12-04
  • Radial oscillations of boson stars made of ultralight repulsive dark matter
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-27
    Ilídio Lopes; Grigoris Panotopoulos

    We compute the lowest frequency radial oscillation modes of boson stars. It is assumed that the object is made of pseudo-Goldstone bosons subjected to a scalar potential that leads to a repulsive self-interaction force, and which is characterized by two unknown mass scales m (mass of the particle) and F (decay constant). First we integrate the Tolman-Oppenheimer-Volkoff equations for the hydrostatic

    更新日期:2020-11-27
  • Integral solutions to the one-loop renormalization-group equations for lepton flavor mixing parameters and the Jarlskog invariant
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-26
    Di Zhang

    Working in the basis where the charged-lepton Yukawa matrix is diagonal and making the τ-dominance approximations, we analytically derive integral solutions to the one-loop renormalization-group equations (RGEs) for neutrino masses, flavor mixing angles, CP-violating phases and the Jarlskog invariant under the standard parametrization of the PMNS matrix in the standard model or its minimal supersymmetric

    更新日期:2020-11-27
  • One-loop corrections to η/s in AdS4/CFT3
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-26
    Iberê Kuntz; Roldão da Rocha

    We study quantum corrections at one-loop order to the shear viscosity to entropy ratio by implementing the Vilkovisky-Barvinsky effective action in asymptotically Anti-de Sitter spacetimes. The shear viscosity is shown to receive no corrections at this order, but the entropy acquires a logarithmic correction. The coefficient of this logarithm turns out to depend on the spin of the particles running

    更新日期:2020-11-27
  • b-Baryon semi-tauonic decays in the Standard Model
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-26
    Chao Han; Chun Liu

    Within the framework of HQET, Λb→Λcτν¯τ and Ωb→Ωc(⁎)τν¯τ weak decays are studied to the order of 1/mc and 1/mb. Helicity amplitudes are written down. Relevant Isgur-Wise functions given by QCD sum rule and large Nc methods are applied in the numerical analysis. The baryonic R-ratios R(Λc) and R(Ωc(⁎)) are obtained.

    更新日期:2020-11-27
  • Probing the Higgs boson through Yukawa force
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-25
    Avik Banerjee; Gautam Bhattacharyya

    The ATLAS and CMS collaborations of the LHC have observed that the Higgs boson decays into the bottom quark-antiquark pair, and have also established that the Higgs coupling with the top quark-antiquark pair is instrumental in one of the modes for Higgs production. This underlines the discovery of the Yukawa force at the LHC. We demonstrate the impact of this discovery on the Higgs properties that

    更新日期:2020-11-26
  • Matter vs vacuum oscillations in atmospheric neutrinos
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-25
    Jaydeep Datta; Mohammad Nizam; Ali Ajmi; S. Uma Sankar

    At present, both vacuum oscillations as well as matter modified oscillations can explain the data of atmospheric neutrino experiments and the long baseline accelerator neutrino experiments equally well. Given the important role the matter effects play in the determination of CP violation in neutrino oscillations, it is imperative to establish the signal for matter effects unambiguously. In this work

    更新日期:2020-11-26
  • Skyrme-type non-linear sigma models via the higher dimensional Landau models
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-25
    Kazuki Hasebe

    A curious correspondence has been known between Landau models and non-linear sigma models: Reinterpreting the base-manifolds of Landau models as field manifolds, the Landau models are transformed to non-linear sigma models with same global and local symmetries. With the idea of the dimensional hierarchy of higher dimensional Landau models, we exploit this correspondence to present a systematic procedure

    更新日期:2020-11-26
  • String-inspired Teleparallel cosmology
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-20
    Sebastian Bahamonde; Mihai Marciu; Sergei D. Odintsov; Prabir Rudra

    The present paper represents an attempt for a very generic string inspired theory of gravitation, based on a stringy action in the teleparallel gravity which includes a specific functional which depends on the scalar field and its kinetic energy, as well as the torsion and boundary terms, embedding also possible effects from the teleparallel Gauss–Bonnet invariants. We focus our study in FLRW cosmology

    更新日期:2020-11-25
  • Dirac neutrino mass models with a modular S4 symmetry
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-20
    Xin Wang

    In this paper, we investigate lepton mass spectra, flavor mixing and CP violation with a modular S4 symmetry under the assumption that neutrinos are Dirac fermions. We find that the Majorana mass term can be forbidden by adjusting the weight of the right-handed neutrino superfields. We study the scenarios where modular forms in the neutrino sector take the lowest non-trivial weight two, while those

    更新日期:2020-11-25
  • CP violation in the extension of SM with a complex singlet scalar and vector quarks
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-17
    Neda Darvishi; Maria Krawczyk

    We consider the simplest extension of the SM with a complex singlet and a pair of heavy doublet vector quarks, the so-called cSMCS model. In this model, the CP violation can emerge spontaneously as a consequence of the time-dependent phase of the complex singlet vacuum expectation value and the mass mixing of the SM and heavy vector quarks. In our model, the CP-violating time-dependent phase depends

    更新日期:2020-11-25
  • Deligne's conjecture and mirror symmetry
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-18
    Wenzhe Yang

    In this paper, we will study the connections between the mirror symmetry of Calabi-Yau threefolds and Deligne's conjecture on the special values of the L-functions of critical motives. Using the theory of mirror symmetry, we will develop a method to compute the Deligne's period for a Calabi-Yau threefold in the mirror family of a one-parameter mirror pair. We will give two examples to show how this

    更新日期:2020-11-25
  • Renormalization group equations and the recurrence pole relations in pure quantum gravity
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-19
    Sergey N. Solodukhin

    In the framework of dimensional regularization, we propose a generalization of the renormalization group equations in the case of the perturbative quantum gravity that involves renormalization of the metric and of the higher order Riemann curvature couplings. The case of zero cosmological constant is considered. Solving the renormalization group (RG) equations we compute the respective beta functions

    更新日期:2020-11-25
  • Inflation in string field theory
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-24
    Haidar Sheikhahmadi; Mir Faizal; Ali Aghamohammadi; Saheb Soroushfar; Sebastian Bahamonde

    In this paper, we analyze the inflationary cosmology using string field theory. This is done by using the zero level contribution from string field theory, which is a non-local tachyonic action. We will use the non-local Friedmann equations for this model based on string field theory, and calculate the slow-roll parameters for this model. We will then explicitly obtain the scalar and tensorial power

    更新日期:2020-11-25
  • The renormalization structure of 6D,N=(1,0) supersymmetric higher-derivative gauge theory
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-23
    I.L. Buchbinder; E.A. Ivanov; B.S. Merzlikin; K.V. Stepanyantz

    We consider the harmonic superspace formulation of higher-derivative 6D,N=(1,0) supersymmetric gauge theory and its minimal coupling to a hypermultiplet. In components, the kinetic term for the gauge field in such a theory involves four space-time derivatives. The theory is quantized in the framework of the superfield background method ensuring manifest 6D,N=(1,0) supersymmetry and the classical gauge

    更新日期:2020-11-23
  • Choices of spinor inner products on M-theory backgrounds
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-23
    Ümit Ertem; Özgün Sütemen; Özgür Açık; Aytolun Çatalkaya

    M-theory backgrounds in the form of unwarped compactifications with or without fluxes are considered. We construct the bilinear forms of supergravity Killing spinors for different choices of spinor inner products on these backgrounds. The equations satisfied by the bilinear forms and their decompositions into product manifolds are obtained for different inner product choices in the special case for

    更新日期:2020-11-23
  • Noether and Hilbert (metric) energy-momentum tensors are not, in general, equivalent
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-17
    Mark Robert Baker; Natalia Kiriushcheva; Sergei Kuzmin

    Multiple methods for deriving the energy-momentum tensor for a physical theory exist in the literature. The most common methods are to use Noether's first theorem with the 4-parameter Poincaré translation, or to write the action in a curved spacetime and perform variation with respect to the metric tensor, then return to a Minkowski spacetime. These are referred to as the Noether and Hilbert (metric/

    更新日期:2020-11-21
  • Regular black holes in Rainbow Gravity
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-19
    Ednaldo L.B. Junior; Manuel E. Rodrigues; Marcos V. de S. Silva

    In this work, we consider that in energy scales near to the Planck energy, the geometry, mass, speed of light, the Newtonian constant of gravitation and matter fields will depend on the energy. This type of theory is known as Rainbow Gravity. We coupled the nonlinear electrodynamics to the Rainbow Gravity, defining a new mass function M(r,ϵ), such that we may formulate new classes of spherically symmetric

    更新日期:2020-11-19
  • A two-loop induced neutrino mass model, dark matter, and LFV processes ℓi → ℓjγ, and μe → ee in a hidden local U(1) symmetry
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-12
    Takaaki Nomura; Hiroshi Okada; Yuichi Uesaka

    We discuss a model based on a hidden U(1)X gauge symmetry in which neutrino mass is induced at two-loop level by effects of interactions among particles in hidden sector and the Standard Model leptons. Since neutrino mass is suppressed by two-loop, its associate Yukawa couplings can be sizable and it would affect lepton flavor phenomenology. We analyze neutrino mass matrix, lepton flavor violating

    更新日期:2020-11-18
  • Signatures of a flavor changing Z′ boson in Bq → γZ′
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-12
    Shao-Long Chen; Amit Dutta Banik; Zhaofeng Kang; Qin Qin; Yoshihiro Shigekami

    Rare B meson decays offer an opportunity to probe a light hidden Z′ boson. In this work we explore a new channel Bq→γZ′ (q=d,s) followed by a cascade decay of Z′ into an invisible (neutrino or dark matter) or charged lepton pair ℓ+ℓ− (ℓ=e,μ). The study is based on a simplified effective model where the down quark sector has tiny flavor-changing neutral current couplings with Z′. For the first time

    更新日期:2020-11-18
  • Random-mass disorder in the critical Gross-Neveu-Yukawa models
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-17
    Hennadii Yerzhakov; Joseph Maciejko

    An important yet largely unsolved problem in the statistical mechanics of disordered quantum systems is to understand how quenched disorder affects quantum phase transitions in systems of itinerant fermions. In the clean limit, continuous quantum phase transitions of the symmetry-breaking type in Dirac materials such as graphene and the surfaces of topological insulators are described by relativistic

    更新日期:2020-11-18
  • Precise predictions for charged Higgs boson pair production in photon-photon collisions
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-11
    Mehmet Demirci

    The charged Higgs pair production via photon-photon collisions is investigated in the framework of two Higgs doublet model (2HDM), taking into account a full set of one-loop-level scattering amplitudes, i.e., including electroweak (EW) corrections together with soft and hard QED radiation. The numerical evaluation is carried out for three different scenarios, so-called non-alignment, low-mH and short-cascade

    更新日期:2020-11-16
  • Exchange interactions, Yang-Baxter relations and transparent particles
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-16
    Alexios P. Polychronakos

    We introduce a class of particle models in one dimension involving exchange interactions that have scattering properties satisfying the Yang-Baxter consistency condition. A subclass of these models exhibits reflectionless scattering, in which particles are “transparent” to each other, generalizing a property hitherto only known for the exchange Calogero model. The thermodynamics of these systems can

    更新日期:2020-11-16
  • Towards the classification of tachyon-free models from tachyonic ten-dimensional heterotic string vacua
    Nucl. Phys. B (IF 2.817) Pub Date : 2020-11-04
    Alon E. Faraggi; Viktor G. Matyas; Benjamin Percival

    Recently it was proposed that ten-dimensional tachyonic string vacua may serve as starting points for the construction of viable four dimensional phenomenological string models which are tachyon–free. This is achieved by projecting out the tachyons in the four-dimensional models using projectors other than the projector which is utilised in the supersymmetric models and those of the SO(16)×SO(16) heterotic

    更新日期:2020-11-12
Contents have been reproduced by permission of the publishers.
导出
全部期刊列表>>
微生物研究
亚洲大洋洲地球科学
NPJ欢迎投稿
自然科研论文编辑
ERIS期刊投稿
欢迎阅读创刊号
自然职场,为您触达千万科研人才
spring&清华大学出版社
城市可持续发展前沿研究专辑
Springer 纳米技术权威期刊征稿
全球视野覆盖
施普林格·自然新
chemistry
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
阿拉丁试剂right
上海中医药大学
清华大学
复旦大学
南科大
北京理工大学
上海交通大学
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
王鹏
武汉大学
浙江大学
天合科研
x-mol收录
试剂库存
down
wechat
bug