Results 41 to 50 of about 1,215,586 (222)

Quark-meson coupling model with short-range quark-quark interactions

, 2000
Short-range quark-quark correlations are introduced into the quark-meson coupling (QMC) model phenomenologically. We study the effect of the correlations on the structure of the nucleon in dense nuclear matter.
Saito, Koichi, Tsushima, Kazuo
core   +1 more source

The mixed quark-gluon condensate from an effective quark-quark interaction [PDF]

, 1997
We exhibit the method for obtaining non perturbative quark and gluonic vacuum condensates from a model truncation of QCD. The truncation allows for a phenomenological description of the quark-quark interaction in a framework which maintains all global ...
Bernard, Cahill, Cahill, Cahill, Cahill, Ecker, Frank, Frank, Frank, Frank, Gasser, Gasser, Kekez, Kremer, Narison, Narison, Negele, Polyakov, Praschifka, Reinders, Roberts, Roberts, Roberts, Shifman, T. Meissner, Tandy, Tandy, Tandy   +27 more
core   +2 more sources

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

Quark models for mesons

EPJ Web of Conferences, 2012
With the advance of experiment, many high excited states of meson are identified. It is found that many of them are difficult to fit into conventional q$ar{q}$q¯ meson spectra. Various explanations are proposed.
Dong Fangfang, Huang Hongxia, Deng Chengrong, Ping Jialun, Wang Fan   +4 more
doaj   +1 more source

Heavy quark symmetry constraints on semileptonic form factors and decay widths of doubly heavy baryons [PDF]

, 2008
We show how heavy quark symmetry constraints on doubly heavy baryon semileptonic decay widths can be used to test the validity of different quark model calculations. The large discrepancies in the results observed between different quark model approaches
Albertus, Bhaduri, Carone, E. Hernández, Ebert, Faessler, Flynn, Georgi, Georgi, Guo, Isgur, Isgur, J. Nieves, J.M. Verde-Velasco, Jenkins, Kiselev, Kiselev, Llewellyn Smith, Nussinov, Onishchenko, Onishchenko, Politzer, Politzer, Sanchis-Lozano, Sanchis-Lozano, Savage, Semay, Shifman, Silvestre-Brac, Thacker, White, Yao   +31 more
core   +3 more sources

An Algebraic Roadmap of Particle Theories Part II: Theoretical Checkpoints

Annalen der Physik, EarlyView.
Algebraic models of particle physics are often met with recurring obstacles. An ideal algebraic model should ‘1e conform to the Coleman‐Mandula theorem, ‘2e evade familiar fermion doubling problems, ‘3e naturally explain the Standard Model's chirality, ‘4e exclude B‐L gauge symmetry at low energy, and ‘5e explain the existence of three generations ...
Nichol Furey
wiley   +1 more source

An alternative approach to the $\sigma$-meson-exchange in nucleon-nucleon interaction

, 2007
Through a quantitative comparative study of the properties of deuteron and nucleon-nucleon interaction with chiral quark model and quark delocalization color screening model.
Fan Wang, Hongxia Huang, Hourong Pang, Jialun Ping, Lingzhi Chen, M. Kamimura   +5 more
core   +1 more source

Unified framework for generalized and transverse-momentum dependent parton distributions within a 3Q light-cone picture of the nucleon [PDF]

, 2011
We present a systematic study of generalized transverse-momentum dependent parton distributions (GTMDs). By taking specific limits or projections, these GTMDs yield various transverse-momentum dependent and generalized parton distributions, thus ...
A Airapetian, AD Martin, AV Belitsky, AV Belitsky, AV Efremov, B Pasquini, B Pasquini, B Pasquini, B Pasquini, B Pasquini, B Pasquini, B-Q Ma, B. Pasquini, C Lorcé, C Lorcé, C Lorcé, C. Lorcé, CF Perdrisat, D Boer, D Diakonov, D Diakonov, D Diakonov, D Diakonov, D Diakonov, D Diakonov, D Diakonov, D Florian de, DE Soper, E Leader, F Cardarelli, H Avakian, H Avakian, HJ Melosh, J Ossmann, J Soffer, JB Kogut, K Abe, K Goeke, K Goeke, M Alekseev, M Anselmino, M Anselmino, M Burkardt, M Burkardt, M Burkardt, M Burkardt, M Diefenthaler, M Diehl, M Diehl, M Diehl, M Diehl, M Gockeler, M Penttinen, M Wakamatsu, M Wakamatsu, M Wakamatsu, M Wakamatsu, M. Vanderhaeghen, MV Polyakov, P Hägler, P Schweitzer, Particle Data Group collaboration, PL Chung, S Boffi, S Boffi, S Boffi, S Boffi, S Meissner, S Meissner, S Meissner, SJ Brodsky, T Ledwig, T Ledwig, W Vogelsang, X-d Ji, Z Dziembowski   +75 more
core   +1 more source

Quark Neutron Layer Stars [PDF]

Astrophys.J. 412 (1993) 213-221, 1993
Typical nuclear equations of state and a quark bag model, surprisingly, allow compact stars with alternate layers of neutrons and quarks. One can determine on the basis of the Gibbs free energy which phase, nuclear or quark, is energetically favorable.
arxiv   +1 more source

Quantum‐Classical Simulation of Quantum Field Theory by Quantum Circuit Learning

Annalen der Physik, EarlyView.
Quantum circuit learning is employed to simulate quantum field theories (QFTs). By integrating a minimal qubit configuration and low‐depth circuits, the approach predicts real‐time dynamics accurately. It effectively simulates complex phenomena such as quench and chiral dynamics in a model of quantum electrodynamics, aligning well with classical ...
Kazuki Ikeda
wiley   +1 more source