Results 51 to 60 of about 282,852 (262)

Transition temperature in QCD with physical light and strange quark masses [PDF]

, 2006
We present results from a calculation of the transition temperature in QCD with two light and one heavier (strange) quark mass on lattices with temporal extent N_t =4 and 6. Calculations with improved staggered fermions have been performed with a strange
Aoki Y, Bernard C, Cheng M (RBC-Bielefeld Collaboration), Frithjof Karsch, Schmidt Ch, the RBC-Bielefeld Collaboration   +5 more
core   +2 more sources

Constituent and current quark masses at low chiral energies [PDF]

, 2001
Light constituent quark masses and the corresponding dynamical quark masses are determined by data, the Quark-Level Linear $\sigma$ Model, and infrared QCD.
Scadron, M. D., Kleefeld, F., Rupp, G.
core   +3 more sources

Electrically charged strange quark stars with a non-linear equation-of-state

The European Physical Journal C, 2019
The properties of electrically charged strange quark stars are investigated. We assume a non-linear equation-of-state, and we obtain numerical solutions to the structure equations.
G. Panotopoulos, Á. Rincón
semanticscholar   +1 more source

Non-perturbative structure of the polarized nucleon sea

, 2003
We investigate the flavour and quark-antiquark structure of the polarized nucleon by calculating the parton distribution functions of the nucleon sea using the meson cloud model. We find that the SU(2) flavor symmetry in the light antiquark sea and quark-
A. I. Signal, A.I. Signal, A.I. Signal, A.W. Schreiber, A.W. Schreiber, A.W. Thomas, A.W. Thomas, B. Adeva, B. Adeva, B. Adeva, B. Adeva, B. Dressler, B. Holzenkamp, C. Boros, D.I. Diakonov, D.I. Diakonov, E.A. Hawker, F.G. Cao, F.G. Cao, F.G. Cao, Fu-Guang Cao, G.T. Garvey, H. Holtmann, J. Ashman, J. Ashman, J. Blumlein, J. Ellis, J. Ellis, K. Abe, K. Ackerstaff, M. Arneodo, M. Arneodo, M. Fukugita, M. Gluck, M. Glück, M. Hirai, P. Amaudraz, P.L. Anthony, P.V. Pobylitsa, R. Machleidt, R.S. Towell, S. Kumano, S.J. Dong, T. DeGrand, W. Melnitchouk, W. Melnitchouk, Y. Goto   +46 more
core   +1 more source

Magnetized strange quark model with Big Rip singularity in f(R, T) gravity [PDF]

, 2017
Locally rotationally symmetric (LRS) Bianchi type-I magnetized strange quark matter (SQM) cosmological model has been studied based on f(R, T) gravity.
P. Sahoo, P. Sahoo, B. K. Bishi, S. Aygun   +3 more
semanticscholar   +1 more source

Recent progresses in strange quark stars

Frontiers in Astronomy and Space Sciences
According to the hypothesis that strange quark matter may be the true ground state of matter at extremely high densities, strange quark stars should be stable and could exist in the Universe. It is possible that pulsars may actually be strange stars, but
Xiao-Li Zhang, Yong-Feng Huang, Yong-Feng Huang, Ze-Cheng Zou   +3 more
doaj   +1 more source

Consistency between SU(3) and SU(2) covariant baryon chiral perturbation theory for the nucleon mass

Physics Letters B, 2017
Treating the strange quark mass as a heavy scale compared to the light quark mass, we perform a matching of the nucleon mass in the SU(3) sector to the two-flavor case in covariant baryon chiral perturbation theory.
Xiu-Lei Ren, L. Alvarez-Ruso, Li-Sheng Geng, Tim Ledwig, Jie Meng, M.J. Vicente Vacas   +5 more
doaj   +1 more source

Strangeness in Astrophysics and Cosmology

, 2010
Some recent developments concerning the role of strange quark matter for astrophysical systems and the QCD phase transition in the early universe are addressed.
Aichelin J, Alford M G, Andersson N, B Sa'd, Bauswein A Oechslin R Janka H T, Blaschke D, Boeckel T Schaffner-Bielich J, Caprini C, Freire P C C, G Pagliara, Huber S J, I Sagert, J Schaffner-Bielich, Kalogera V, Lorimer D R, M Hempel, Mintz B I, Mintz B W Fraga E Pagliara G Schaffner-Bielich J, Pagliara G, Sa'd B A, Sa'd B A Schaffner-Bielich J, Sagert I, Sagert I, Sagert I Wietoska M Schaffner-Bielich J Sturm C, T Boeckel   +24 more
core   +7 more sources

Lattice simulations with $N_f=2+1$ improved Wilson fermions at a fixed strange quark mass [PDF]

, 2016
The explicit breaking of chiral symmetry of the Wilson fermion action results in additive quark mass renormalization. Moreover, flavour singlet and non-singlet scalar currents acquire different renormalization constants with respect to continuum ...
G. Bali, E. Scholz, Jakob Simeth, W. Soldner   +3 more
semanticscholar   +1 more source

A new window on Strange Quark Matter as the ground state of strongly interacting matter

, 2003
If strange quark matter is the true ground state of matter, it must have lower energy than nuclear matter. Simultaneously, two-flavour quark matter must have higher energy than nuclear matter, for otherwise the latter would convert to the former. We show,
A. Gocksch, A. Manohar, C. Alcock, D. Diakonov, D. Diakonov, Dipankar Bhattacharya, E. Farhi, E. Witten, G. Baym, J. Stern, J. Stern, J.A. McGovern, M. Alford, M. Alford, M. Kutschera, M.C. Birse, M.C. Birse, R. Johnson, S. Kahana, V. Soni, V. Soni, Vikram Soni   +21 more
core   +2 more sources