Results 31 to 40 of about 48,916 (267)
Analysis of the pseudoscalar hidden-charm tetraquark states with the QCD sum rules
Nuclear Physics B, 2022 In this work, we take all the color-antitriplet diquarks, such as the scalar, pseudoscalar, vector, axialvector and tensor diquarks, as the basic constituents to construct the local pseudoscalar four-quark currents without importing the explicit P-waves ...
Zhi-Gang Wang, Qi Xin
doaj +1 more source
Strangeness counting in high energy collisions [PDF]
, 1998 The estimates of overall strange quark production in high energy e+e-, pp and ppbar collisions by using the statistical-thermal model of hadronisation are presented and compared with previous works.
Becattini F +13 more
core +2 more sources
Quark Matter May Not Be Strange [PDF]
Physical Review Letters, 2018 If quark matter is energetically favored over nuclear matter at zero temperature and pressure then it has long been expected to take the form of strange quark matter (SQM), with comparable amounts of $u$, $d$, $s$ quarks. The possibility of quark matter with only $u$, $d$ quarks ($ud$QM) is usually dismissed because of the observed stability of ...
Holdom, Bob, Ren, Jing, Zhang, Chen
openaire +3 more sources
Quark, pion and axial condensates in three-flavor finite isospin chiral perturbation theory
European Physical Journal C: Particles and Fields, 2021 We calculate the light-quark condensate, the strange-quark condensate, the pion condensate, and the axial condensate in three-flavor chiral perturbation theory ( $$\chi $$ χ PT) in the presence of an isospin chemical potential at next-to-leading order at
Prabal Adhikari +2 more
doaj +1 more source
GW emission from merging strange quark star-strange quark planet systems [PDF]
AIP Conference Proceedings, 2019 Strange quark matter (SQM) may be the true ground state of hadronic matter. The observed pulsars may actually be strange quark stars, rather than neutron stars. With such an SQM hypothesis, researchers have predicted the existence of hydrostatically stable sequence of strange quark stars, like strange quark dwarfs and even strange quark planets ...
Abudushataer Kuerban +2 more
openaire +1 more source
On the estimation of the strange quark mass from the experimental data on the light baryon octet
Ядерна фізика та енергетика, 2018 Simple relations connecting the strange quark mass to the splittings of the light hyperon masses were obtained on the basis of the phenomenological quark model compatible with the present-day theory of strong interactions, i.e.
V. A. Babenko, N. M. Petrov
doaj +1 more source
Thermodynamics, strange quark matter, and strange stars [PDF]
Physical Review C, 2000 6 pages, 6 PS figures, REVTeX ...
G. X. Peng +4 more
openaire +2 more sources
Strange Quark Stars — A Review [PDF]
Symposium - International Astronomical Union, 2003 A pedagogical overview of strange quark matter and strange stars is presented. After a historical notation of the research and an introduction to quark matter, a major part is devoted to the physics and astrophysics of strange stars, with attention being paid to the possible ways by which neutron stars and strange stars can be distinguished in ...
openaire +2 more sources
Quark condensates and strange quark matter [PDF]
Physical Review C, 1997 Based upon recent studies on quark condensates, we investigate strange quark matter at zero temperature and find that the mass parametrization popularly used for u/d quarks with the mass-density-dependent model is just a first-order approximation to a more general formula, whereas the corresponding formula for s quarks has to be modified, which leads ...
G. Peng, P. Ning, H. Chiang
openaire +1 more source
Physics World, 2000 MOST physicists and astronomers believe that space, time and all the matter and radiation in the universe was formed during the big bang some 15 billion years ago. A key challenge in physics and astronomy – perhaps the ultimate challenge – is to understand how the universe we live in today evolved from the cosmic fireball created in the big bang As our
Emanuele Quercigh, Johann Rafelski
openaire +1 more source