Zobrazeno 1 - 10
of 13 898
pro vyhledávání: '"Lattice-QCD"'
Autor:
Xiao Luo, Yoshinobu Kuramashi
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-10 (2024)
Abstract We study the quantum phase transition of the (1+1)-dimensional O(3) nonlinear sigma model at finite density using the tensor renormalization group method. This model suffers from the sign problem, which has prevented us from investigating th
Externí odkaz:
https://doaj.org/article/2057b43211d541fba566ba79069d13e4
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-27 (2024)
Abstract Distribution amplitudes are functions of non-perturbative matrix elements describing the hadronization of quarks and gluons. Thanks to factorization theorems, they can be used to compute the scattering amplitude of high-energy processes. Rec
Externí odkaz:
https://doaj.org/article/9345146aaacf4f0bab36edae6578ea32
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-30 (2024)
Abstract In this paper we investigate the chiral magnetic effect (CME): the generation of an electric current due to a homogeneous background magnetic field and a homogeneous chiral imbalance in QCD. We demonstrate that the leading coefficient descri
Externí odkaz:
https://doaj.org/article/c18b146b3a3a4749bb2f4772056f73a9
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-26 (2024)
Abstract We simulate N f = 2 + 1 QCD at the physical point combining open and periodic boundary conditions in a parallel tempering framework, following the original proposal by M. Hasenbusch for 2d CP N−1 models, which has been recently implemented
Externí odkaz:
https://doaj.org/article/8d791bd4a9d34c4fbe682c9583d03cd2
Autor:
Alex Pomarol, Lindber Salas
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-20 (2024)
Abstract We consider conformal transitions arising from the merging of IR and UV fixed points, expected to occur in QCD with a large enough number of flavors. We study the smoothness of physical quantities across this transition, being mostly determi
Externí odkaz:
https://doaj.org/article/7dda903666d644d7944881b75464f653
Autor:
Hervé Dutrieux, Robert G. Edwards, Colin Egerer, Joseph Karpie, Christopher Monahan, Kostas Orginos, Anatoly Radyushkin, David Richards, Eloy Romero, Savvas Zafeiropoulos, on behalf of the HadStruc collaboration
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-60 (2024)
Abstract We present an exploration of the unpolarized isovector proton generalized parton distributions (GPDs) H u−d (x, ξ, t) and E u−d (x, ξ, t) in the pseudo-distribution formalism using distillation. Taking advantage of the large kinematic
Externí odkaz:
https://doaj.org/article/ba8cfa8538874671920da6b81a55e556
Autor:
A. Baião Raposo, M. T. Hansen
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-64 (2024)
Abstract The two-particle finite-volume scattering formalism derived by Lüscher and generalized in many subsequent works does not hold for energies far enough below the two-particle threshold to reach the nearest left-hand cut. The breakdown of the
Externí odkaz:
https://doaj.org/article/9ebd8d0d93684febab747325ead63dfc
Publikováno v:
Physics Letters B, Vol 860, Iss , Pp 139178- (2025)
We present a realistic lattice QCD study on low-energy N-J/ψ and N-ηc interactions based on (2+1) flavor configurations with nearly physical pion mass mπ=146 MeV. The interactions, extracted from the spacetime correlations of nucleon and charmoniu
Externí odkaz:
https://doaj.org/article/474a7997df954a769e6aa19bb84776ef
Publikováno v:
Physics Letters B, Vol 859, Iss , Pp 139138- (2024)
We show that the recent MIT lattice QCD data for the pion's gravitational form factors are, in the covered momentum transfer range, fully consistent with the meson dominance principle. In particular, the 2++ component can be accurately saturated with
Externí odkaz:
https://doaj.org/article/65a5c8b5227e4da9890609bfd682b62c
Publikováno v:
Physics Letters B, Vol 858, Iss , Pp 139054- (2024)
The Batalin-Vilkovisky function is a central component in the modern formulation of the background field method and the physical applications derived from it. In the present work we report on novel lattice results for this particular quantity, obtain
Externí odkaz:
https://doaj.org/article/98b51025807c40a885eb8e3c7ad6d61f