scholarly journals Chiral Lagrangian for strange hadronic matter

1998 ◽  
Vol 57 (5) ◽  
pp. 2576-2588 ◽  
Author(s):  
P. Papazoglou ◽  
S. Schramm ◽  
J. Schaffner-Bielich ◽  
H. Stöcker ◽  
W. Greiner
Keyword(s):  
Hadronic Matter ◽  
Chiral Lagrangian

scholarly journals 2, 12, 117, 1959, 45171, 1170086, …: a Hilbert series for the QCD chiral Lagrangian

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Lukáš Gráf ◽  
Brian Henning ◽  
Xiaochuan Lu ◽  
Tom Melia ◽  
Hitoshi Murayama
Keyword(s):  
Hilbert Series ◽  
Charge Conjugation ◽  
External Fields ◽  
Dynkin Diagrams ◽  
Non Linear ◽  
Very High ◽  
Chiral Lagrangian

Abstract We apply Hilbert series techniques to the enumeration of operators in the mesonic QCD chiral Lagrangian. Existing Hilbert series technologies for non-linear realizations are extended to incorporate the external fields. The action of charge conjugation is addressed by folding the $$ \mathfrak{su}(n) $$ su n Dynkin diagrams, which we detail in an appendix that can be read separately as it has potential broader applications. New results include the enumeration of anomalous operators appearing in the chiral Lagrangian at order p8, as well as enumeration of CP-even, CP-odd, C-odd, and P-odd terms beginning from order p6. The method is extendable to very high orders, and we present results up to order p16.(The title sequence is the number of independent C-even and P-even operators in the mesonic QCD chiral Lagrangian with three light flavors of quarks, at chiral dimensions p2, p4, p6, …)

scholarly journals Non-perturbative quarkonium dissociation in hadronic matter

1995 ◽  
Vol 356 (2-3) ◽  
pp. 349-353 ◽  
Author(s):  
D. Kharzeev ◽  
L. McLerran ◽  
H. Satz
Keyword(s):  
Hadronic Matter

Leading particle and nuclear-mass effects on multiparticle production in 50 GeV/c π− interactions in nuclear emulsion

1981 ◽  
Vol 59 (6) ◽  
pp. 812-819 ◽  
Author(s):  
S. C. Varma ◽  
V. Kumar ◽  
A. P. Sharma
Keyword(s):  
Magnetic Field ◽  
Experimental Study ◽  
Nuclear Emulsion ◽  
Hadronic Matter ◽  
Multiparticle Production ◽  
Particle Multiplicity ◽  
Nuclear Mass ◽  
Space Time Structure ◽  
Leading Particle ◽  
Grey Particle

An experimental study is carried out on the effects of nuclear mass on leading particle multiplicity and multiparticle production with the help of an emulsion stack exposed to 50 GeV/c π− beam under a strong pulsed magnetic field. The study of the effect of nuclear mass on the forward–backward asymmetry in a π−–A collision is also carried out using the grey particle multiplicity data. The results support the concept of "formation length" of radiation. An attempt is made to explain the space–time structure of hadronic matter in terms of the additive quark model of multiparticle production.

scholarly journals Speed of sound in hadronic matter using non-extensive Tsallis statistics

2016 ◽  
Vol 52 (9) ◽  
Author(s):  
Arvind Khuntia ◽  
Pragati Sahoo ◽  
Prakhar Garg ◽  
Raghunath Sahoo ◽  
Jean Cleymans
Keyword(s):  
Speed Of Sound ◽  
Hadronic Matter ◽  
Tsallis Statistics

Microcosmos and Macrocosmos: A Look at these Two Universes in a Unified Way

1997 ◽  
Vol 12 (07) ◽  
pp. 1373-1384 ◽  
Author(s):  
P. R. Silva
Keyword(s):  
Strong Interaction ◽  
Gravitational Force ◽  
Inertial Mass ◽  
Hadronic Matter ◽  
Vacuum Pressure ◽  
Bag Model ◽  
Small Oscillations ◽  
Mit Bag Model ◽  
Two Universes ◽  
The Universe

An extension of the MIT bag model, developed to describe the strong interaction inside the hadronic matter (nucleons), is proposed as a means to account for the confinement of matter in the universe. The basic hypotheses of the MIT bag model are worked out in a very simplified way and are also translated in terms of the gravitational force. We call the nucleon "microcosmos" and the bag-universe "macrocosmos." We have found a vacuum pressure of 10-15 atm at the boundary of the bag-universe as compared with a pressure of 1029 atm at the boundary of the nucleon. Both universes are also analyzed in the light of Sciama's theory of inertia, which links the inertial mass of a body to its interaction with the rest of the universe. One of the consequences of this work is that the Weinberg mass can be interpreted as a threshold mass, namely the mass where the frequency of the small oscillations of a particle coupled to the universe matches its de Broglie frequency. Finally, we estimate an averaged density of matter in the universe, corresponding to [Formula: see text] of the critical or closure density.

K-Balls in the chiral lagrangian

1986 ◽  
Vol 182 (1) ◽  
pp. 71-74 ◽  
Author(s):  
Jacques Distler ◽  
Brian Hill ◽  
Donald Spector
Keyword(s):  
Chiral Lagrangian

scholarly journals PRODUCTION OF TWO PIONS INDUCED BY NEUTRINOS

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2309-2312 ◽  
Author(s):  
M. VALVERDE ◽  
J. NIEVES ◽  
E. HERNÁNDEZ ◽  
S. K. SINGH ◽  
M. J. VICENTE VACAS
Keyword(s):  
Roper Resonance ◽  
Nucleon Pole ◽  
Chiral Lagrangian

We study the threshold production of two pions induced by neutrinos in nucleon targets. The contribution of nucleon pole, pion and contact terms is calculated using a chiral Lagrangian. The contribution of the Roper resonance, neglected in earlier studies, has also been taken into account.

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