Results 71 to 80 of about 384,051 (242)

Power-aligned 2HDM: a correlative perspective on (g − 2) e,μ

Journal of High Energy Physics, 2021
With the hypothesis of minimal flavor violation, we find that there exists a power-aligned relation between the Yukawa couplings of the two scalar doublets in the two-Higgs-doublet model with Hermitian Yukawa matrices.
Shao-Ping Li, Xin-Qiang Li, Yuan-Yuan Li, Ya-Dong Yang, Xin Zhang   +4 more
doaj   +1 more source

Quark-hadron phase transition in a three flavor PNJL model [PDF]

, 2013
We study the quark-hadron phase transition by using a three flavor Nambu-Jona-Lasinio model with the Polyakov loop at zero chemical potential, extending our previous work with two flavor model. We show that the equation of state at low temperatures is dominated by pions and kaons as collective modes of quarks and anti-quarks.
arxiv   +1 more source

Top quark physics in hadron collisions

, 2005
The top quark is the heaviest elementary particle observed to date. Its large mass makes the top quark an ideal laboratory to test predictions of perturbation theory concerning heavy quark production at hadron colliders.
Abazov V M, Abazov V M, Abazov V M, Abazov V M, Abazov V M, Abazov V M, Abazov V M, Abbaneo D, Abbaneo D, Abbaneo D, Abbiendi G, Acosta D, Acosta D, Acosta D, Acosta D, Acosta D, Acosta D, Acosta D, Acosta D, Acosta D, Agnew G, Ahmadov A, Azzi P, Barger V D, Beenakker W, Boos E E, Bross A, Brun R Carminati F, Buras A J, Cacciari M, Cakir O, Dokshitzer Y L, Garbincius P L, Goldstone J, Gordeev A, Gribov V N, Griffiths D J, Halzen F, Heister A, Heister A, Hollik W F L, Inami T, Inami T, Just K, Kobayashi M, Kühn J H, Kühn J H, Kühn J H, Leader E, Link J M, Lohrmann E, Mahlon G, Maltoni F, Mangano M, Mangano M L, Martin A D Roberts R G Stirling W J Thorne R S, Myers S, Paige F Protopopescu S, Perkins D H, Richter B, Salam A Svartholm N, Schaile D, Teubner T, Wolfgang Wagner   +63 more
core   +3 more sources

QUARKS IN THE UNIVERSE [PDF]

International Journal of Modern Physics E, 2007
Matter in its present form was formed when our Universe emerged from the quark-gluon phase (QGP) at about 30mus into its evolution. To explore this early period in the laboratory, we study highly excited matter formed in relativistic heavy ion collision experiments: heavy nuclei crash into each other, and form compressed and energetically excited ...
openaire   +3 more sources

Nucleon structure in a light-front quark model consistent with quark counting rules and data [PDF]

Phys. Rev. D 91, 054028 (2015), 2014
Using global fits of valence u and d quark parton distributions and data on quark and nucleon form factors in the Euclidean region, we derive a light-front quark model for the nucleon structure consistent with quark counting rules.
arxiv   +1 more source

Evaluation of the two lightest quark masses

Âderna Fìzika ta Energetika, 2017
Simple relations between the masses of the two lightest up and down quarks were obtained on the basis of the simple physically based model compatible with the present-day theory of strong interactions, i.e. with quantum chromodynamics.
V. A. Babenko, N. M. Petrov
doaj  

Chiral Phase Transition in Linear Sigma Model with Nonextensive Statistical Mechanics

Advances in High Energy Physics, 2017
From the nonextensive statistical mechanics, we investigate the chiral phase transition at finite temperature T and baryon chemical potential μB in the framework of the linear sigma model.
Ke-Ming Shen, Hui Zhang, De-Fu Hou, Ben-Wei Zhang, En-Ke Wang   +4 more
doaj   +1 more source

B s(d) − B ¯ $$ \overline{B} $$ s(d) mixing and B s → μ + μ − decay in the NMSSM with the Flavour Expansion Theorem

Journal of High Energy Physics, 2019
In this paper, motivated by the observation that the Standard Model predictions are now above the experimental data for the mass difference ΔM s(d), we perform a detailed study of B s(d) − B ¯ $$ \overline{B} $$ s(d) mixing and B s → μ + μ − decay in the
Quan-Yi Hu, Xin-Qiang Li, Ya-Dong Yang, Min-Di Zheng   +3 more
doaj   +1 more source

CP asymmetry in the angular distribution of τ → KS πν τ decays

Journal of High Energy Physics, 2020
In this work, we study the C P asymmetry in the angular distribution of τ → K S πν τ decays, taking into account the known C P violation in K 0 − K ¯ 0 $$ {K}^0-{\overline{K}}^0 $$ mixing. It is pointed out for the first time that, once the well-measured
Feng-Zhi Chen, Xin-Qiang Li, Ya-Dong Yang   +2 more
doaj   +1 more source

Quark matter symmetry energy and quark stars [PDF]

The Astrophysical Journal, 780:135, 2014, 2012
We extend the confined-density-dependent-mass (CDDM) model to include isospin dependence of the equivalent quark mass. Within the confined-isospin-density-dependent-mass (CIDDM) model, we study the quark matter symmetry energy, the stability of strange quark matter, and the properties of quark stars.
arxiv   +1 more source