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We investigate the finite size effect on pseudoscalar meson masses and decay constants using a subset of the "PACS10" configurations which are generated keeping the space-time volumes over (10 fm$)^4$ in 2+1 flavor QCD at the physical…

High Energy Physics - Lattice · Physics 2019-01-10 K. -I. Ishikawa , N. Ishizuka , Y. Kuramashi , Y. Nakamura , Y. Namekawa , Y. Taniguchi , N. Ukita , T. Yamazaki , T. Yoshie

A study of the finite-size effect is carried out for spectra of both ground-state and excited-state baryons in quenched lattice QCD using Wilson fermions. Our simulations are performed at beta=6.2 with three different spatial sizes, La~1.6,…

High Energy Physics - Lattice · Physics 2009-11-11 Kiyoshi Sasaki , Shoichi Sasaki

We investigate the finite size effect on masses of excited baryons in quenched lattice QCD simulation. For this purpose, we perform numerical simulations at three different lattice sizes, La\simeq 1.6, 2.2 and 3.2 fm. The gauge…

High Energy Physics - Lattice · Physics 2007-05-23 Kiyoshi Sasaki , Shoichi Sasaki

We study finite-volume effects on the masses of the ground-state octet baryons using covariant baryon chiral perturbation theory (ChPT) up to next-to-leading order by analyzing the latest $n_f=2+1$ lattice Quantum ChromoDynamics (LQCD)…

High Energy Physics - Phenomenology · Physics 2013-05-29 Li-sheng Geng , Xiu-lei Ren , J. Martin-Camalich , W. Weise

The effect of the finite system size on the QCD phase diagram was studied with various momentum space constraints within a mean-field quark-meson model. On the one hand side, the choice of the scenario -- low-momentum cutoff and…

High Energy Physics - Phenomenology · Physics 2025-04-25 Győző Kovács

We present results for the ground-state mass shifts of octet baryons due to the presence of a medium of pions or kaons from a lattice QCD calculation performed at a single value of the quark mass, corresponding to a pion mass of $m_\pi$ ~…

High Energy Physics - Lattice · Physics 2013-11-14 Amy N. Nicholson , William Detmold

We present simulation results of the (2+1)d four-fermion model with a baryon chemical potential. We examine temporal correlation functions of the vector meson, and find evidence of phonon-like behavior characterised by a linear dispersion…

High Energy Physics - Lattice · Physics 2017-08-23 S. J. Hands , C. G. Strouthos

We have carried out spectrum calculations with two flavors of dynamical Kogut-Susskind quarks on four lattice sizes from $8^3\times 24$ to $16^3\times24$ at couplings that correspond to chiral symmetry restoration for a lattice with 6 time…

High Energy Physics - Lattice · Physics 2008-11-26 C. Bernard , T. Blum , T. DeGrand , C. Detar , S. Gottlieb , A. Krasnitz , R. Sugar , D. Toussaint

Now that Lattice QCD calculations are beginning to include QED, it is important to better understand how hadronic properties are modified by finite-volume QED effects. They are known to exhibit power-law scaling with volume, in contrast to…

High Energy Physics - Lattice · Physics 2014-10-07 Zohreh Davoudi , Martin J. Savage

We discuss a novel method to calculate fB on the lattice based on the study of the dependence of finite size effects upon the heavy quark mass of flavoured mesons and on a non--perturbative recursive finite size technique. This method…

High Energy Physics - Lattice · Physics 2009-11-07 M. Guagnelli , F. Palombi , R. Petronzio , N. Tantalo

We report on a recent study of finite-volume effects on the lowest-lying octet baryon masses using the covariant baryon chiral perturbation theory up to next-to-leading order by analysing the latest $n_f = 2 + 1$ lattice QCD results from…

Nuclear Theory · Physics 2017-08-23 Xiu-Lei Ren , Lisheng Geng , Jie Meng

Using two-color lattice QCD with Wilson fermions, we report a study of the finite baryon number density system with two-flavors. First we investigate the Polyakov line and thermodynamical uantities in the $(\kappa,\mu)$ plane, where…

High Energy Physics - Lattice · Physics 2016-09-01 Shin Muroya , Atsushi Nakamura , Chiho Nonaka

Spatially non-local matrix elements are useful lattice-QCD observables in a variety of contexts, for example in determining hadron structure. To quote credible estimates of the systematic uncertainties in these calculations, one must…

High Energy Physics - Lattice · Physics 2018-11-06 Raúl A. Briceño , Juan V. Guerrero , Maxwell T. Hansen , Christopher J. Monahan

We perform an analysis of the QCD lattice data on the baryon octet and decuplet masses based on the relativistic chiral Lagrangian. The baryon self energies are computed in a finite volume at next-to-next-to-next-to leading order (N$^3$LO),…

High Energy Physics - Lattice · Physics 2014-09-17 M. F. M. Lutz , R. Bavontaweepanya , C. Kobdaj , K. Schwarz

The search for the QCD critical end point (CEP) is a major objective of contemporary heavy-ion physics, motivating the study of fluctuation observables that are sensitive to critical dynamics. In particular, baryon-number fluctuations…

High Energy Physics - Phenomenology · Physics 2026-03-18 Athanasios Brofas , Fotios K. Diakonos

We present lattice QCD results of baryon-baryon potentials in S=-3 sector, i.e., \Xi\Sigma (I=3/2) potentials and \Xi\Lambda-\Xi\Sigma coupled channel potentials (I=1/2) by using the 2+1 flavor gauge configurations with almost the physical…

We have continued our study of finite size effects in the QCD spectrum on lattices ranging in size from $8^3\times 24$ to $16^3\times24$. We have increased our statistics for quark mass $am_q=0.025$ for the smallest lattice size. In…

High Energy Physics - Lattice · Physics 2012-08-27 The MILC Collaboration , C. Bernard , T. A. DeGrand , C. DeTar , Steven Gottlieb , A. Krasnitz , R. Authors , : , L. Sugar , D. Toussaint

We investigate the quark mass dependence of baryon masses in 2+1 flavor lattice QCD using SU(3) heavy baryon chiral perturbation theory up to one-loop order. The baryon mass data used for the analyses are obtained for the degenerate up-down…

High Energy Physics - Lattice · Physics 2009-11-06 K. -I. Ishikawa , N. Ishizuka , T. Izubuchi , D. Kadoh , K. Kanaya , Y. Kuramashi , Y. Namekawa , M. Okawa , Y. Taniguchi , A. Ukawa , N. Ukita , T. Yoshie

We investigate the charmed baryon mass spectrum using the relativistic heavy quark action on 2+1 flavor PACS-CS configurations previously generated on $32^3 \times 64$ lattice. The dynamical up-down and strange quark masses are tuned to…

High Energy Physics - Lattice · Physics 2013-05-29 Y. Namekawa , S. Aoki , K. -I. Ishikawa , N. Ishizuka , K. Kanaya , Y. Kuramashi , M. Okawa , Y. Taniguchi , A. Ukawa , N. Ukita , T. Yoshié

Lattice QCD calculations with background magnetic fields are used to determine the magnetic moments of the octet baryons. Computations are performed at the physical value of the strange quark mass, and two values of the light quark mass,…

High Energy Physics - Lattice · Physics 2017-07-19 Assumpta Parreno , Martin J. Savage , Brian C. Tiburzi , Jonas Wilhelm , Emmanuel Chang , William Detmold , Kostas Orginos
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