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相关论文: Inverse magnetic catalysis in QCD

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We evaluate the impact of an external magnetic field on the chiral symmetry and confinement-deconfinement transition temperatures by using a vector-vector contact interaction model for quarks regularized so as to include an explicit…

高能物理 - 唯象学 · 物理学 2016-05-19 Aftab Ahmad , Alfredo Raya

Some of the advances made in the literature to understand the phase transitions of quark matter in the presence of strong magnetic field and finite temperature (zero quark chemical potential) are reviewed. We start by discussing the physics…

高能物理 - 唯象学 · 物理学 2021-04-28 Aritra Bandyopadhyay , Ricardo L S Farias

Gluon interaction introduces remarkable corrections to the magnetic polarization effects on the chiral fermions, which is known as the inverse magnetic catalysis. It is a natural speculation that the vorticity, which has many similar…

高能物理 - 唯象学 · 物理学 2022-11-23 Yin Jiang

Magnetic effects on chiral phase transition have been investigated in a modified soft-wall AdS/QCD model, in which the dilaton field is taken to be negative at the ultraviolet region and positive at the infrared region as in…

高能物理 - 理论 · 物理学 2017-03-08 Danning Li , Mei Huang , Yi Yang , Pei-Hung Yuan

We study the dressing of four-quark interaction by the ring diagram, and its feeding back to the quark gap equation, in an effective chiral quark model. Implementing such an in-medium coupling naturally reduces the chiral transition…

高能物理 - 唯象学 · 物理学 2022-09-22 Pok Man Lo , Michał Szymański , Krzysztof Redlich , Chihiro Sasaki

It is well known that very large magnetic fields are generated when the Quark-Gluon Plasma is formed during peripheral heavy-ion collisions. Lattice, holographic, and other studies strongly suggest that these fields may, for observationally…

高能物理 - 理论 · 物理学 2016-04-20 Brett McInnes

We investigate the effect of a non-zero magnetic field on the chiral condensate using a holographic QCD approach. We extend the model proposed by Iatrakis, Kiritsis and Paredes in arXiv:1010.1364 that realises chiral symmetry breaking…

高能物理 - 理论 · 物理学 2020-12-02 Alfonso Ballon-Bayona , Jonathan P. Shock , Dimitrios Zoakos

We study the behavior of strongly interacting matter under a uniform intense external magnetic field in the context of nonlocal extensions of the Polyakov-Nambu-Jona-Lasinio model. A detailed description of the formalism is presented,…

高能物理 - 唯象学 · 物理学 2017-12-22 D. Gomez Dumm , M. F. Izzo Villafañe , S. Noguera , V. P. Pagura , N. N. Scoccola

The effect of an external magnetic field in QCD phase diagram, namely, in the the location of the critical end point (CEP) is investigated. Using the 2+1 flavor Nambu--Jona-Lasinio model with Polyakov loop, it is shown that when an external…

高能物理 - 唯象学 · 物理学 2015-09-04 Márcio Ferreira , Pedro Costa , Constança Providência

The dependence of the QCD coupling constant with a strong magnetic field and the implications for the critical temperature of the chiral phase transition are investigated. It is found that the coupling constant becomes anisotropic in a…

核理论 · 物理学 2015-03-11 E. J. Ferrer , V. de la Incera , X. J. Wen

We study the screening of four-quark interaction by the ring diagram in an effective chiral quark model. This entails a medium dependent coupling which naturally reduces the chiral transition temperature in a class of models, and is capable…

高能物理 - 唯象学 · 物理学 2021-07-13 Pok Man Lo , Michal Szymanski , Krzysztof Redlich , Chihiro Sasaki

Vacuum of Quantum Chromodynamics in very strong (hadron-scale) magnetic fields exhibits many interesting nonperturbative effects. Some of these effects can be studied with the help of lattice simulations in quenched QCD. We review our…

高能物理 - 唯象学 · 物理学 2009-09-15 P. V. Buividovich , M. N. Chernodub , E. V. Luschevskaya , M. I. Polikarpov

The QCD phase diagram in the temperature versus quark chemical potential plane is studied in the presence of a magnetic field, using the linear sigma model coupled to quarks. It is shown that the decrease of the couplings with increasing…

高能物理 - 唯象学 · 物理学 2015-12-02 Alejandro Ayala , C. A. Dominguez , L. A. Hernandez , M. Loewe , R. Zamora

We compute the critical temperature for the chiral transition in the background of a magnetic field in the linear sigma model, including the quark contribution and the thermo-magnetic effects induced on the coupling constants at one loop…

高能物理 - 唯象学 · 物理学 2015-01-14 Alejandro Ayala , M. Loewe , R. Zamora

We investigate the chiral properties of QCD in presence of a magnetic background field and in the low temperature regime, by lattice numerical simulations of N_f = 2 QCD. We adopt a standard staggered discretization, with a pion mass around…

高能物理 - 格点 · 物理学 2011-07-04 Massimo D'Elia , Francesco Negro

We study the behavior of strongly interacting matter under a strong external magnetic field in the context of chiral quark models that include nonlocal interactions. In particular, we analyze the influence of a constant magnetic field on…

高能物理 - 唯象学 · 物理学 2018-07-19 D. Gómez Dumm , M. F. Izzo Villafañe , S. Noguera , V. Pagura , N. N. Scoccola

We study the influence of strong external magnetic fields on gluonic and fermionic observables in the QCD vacuum at zero and nonzero temperatures, via lattice simulations with N_f=1+1+1 staggered quarks of physical masses. The gluonic…

高能物理 - 格点 · 物理学 2015-06-15 G. S. Bali , F. Bruckmann , G. Endrodi , F. Gruber , A. Schaefer

The effect of a strong magnetic field on the location of the critical end point (CEP) in the QCD phase diagram is discussed under different scenarios. In particular, we consider the contribution of the vector interaction and take into…

高能物理 - 唯象学 · 物理学 2015-09-01 Pedro Costa , Márcio Ferreira , Débora P. Menezes , João Moreira , Constança Providência

We investigate the finite-temperature quantum chromodynamics (QCD) on a rotating lattice with $N_f=2+1$ staggered fermions and the projective plane boundary condition. We observe a negative rotational rigidity (defined in the main text) and…

高能物理 - 格点 · 物理学 2023-07-13 Ji-Chong Yang , Xu-Guang Huang

We investigate the magnetism of QCD matter and pion mass under magnetic field considering the contribution from the tensor-type spin polarization and the anomalous magnetic moment (AMM) of quarks. It is found that the tensor-type spin…

高能物理 - 唯象学 · 物理学 2022-07-27 Fan Lin , Kun Xu , Mei Huang