Results 111 to 120 of about 214,531 (268)

Baryogenesis through Collapsing String Loops in Gauged Baryon and Lepton Models

open access: yes, 1993
A scenario for the generation of the baryon asymmetry in the early Universe is proposed in which cosmic string loops, predicted by theories where the baryon and/or lepton numbers are gauged symmetries, collapse during the friction dominated period of ...
A. D. Dolgov   +21 more
core   +2 more sources

Baryon–baryon interactions from chiral effective field theory [PDF]

open access: yesNuclear Physics A, 2013
Results from an ongoing study of baryon-baryon systems with strangeness S=-1 and -2 within chiral effective field theory are reported. The investigations are based on the scheme proposed by Weinberg which has been applied rather successfully to the nucleon-nucleon interaction in the past. Results for the hyperon-nucleon and hyperon-hyperon interactions
openaire   +5 more sources

Chiral symmetry breaking and stability of quark droplets

open access: yes, 2006
We discuss the stability of strangelets -- quark droplets with strangeness -- in the Nambu--Jona-Lasinio model supplemented by a boundary condition for quark confinement.
A. HOSAKA   +4 more
core   +1 more source

Novel phases of a baryon-dense QCD-like theory

open access: yesJournal of High Energy Physics
We investigate the phases of a strongly coupled QCD-like theory at finite baryon chemical potential using s-confining supersymmetric QCD deformed by anomaly-mediated supersymmetry breaking.
Yang Bai   +2 more
doaj   +1 more source

Calculating Masses of Pentaquarks Composed of Baryons and Mesons

open access: yesAdvances in High Energy Physics, 2016
We consider an exotic baryon (pentaquark) as a bound state of two-body systems composed of a baryon (nucleon) and a meson. We used a baryon-meson picture to reduce a complicated five-body problem to simple two-body problems.
M. Monemzadeh   +2 more
doaj   +1 more source

The allowed baryon to baryon–meson strong transitions

open access: yesEuropean Physical Journal C: Particles and Fields
We investigate the kinematically allowed baryon to baryon–meson strong transitions in all the light and heavy sectors. We consider only the ground state on-shell particles in the baryonic and mesonic channels.
A. R. Olamaei, S. Rostami, K. Azizi
doaj   +1 more source

Gravitational Baryogenesis

open access: yes, 2004
We show that a gravitational interaction between the derivative of the Ricci scalar curvature and the baryon-number current dynamically breaks CPT in an expanding universe and, combined with baryon-number-violating interactions, can drive the universe ...
A. D. Sakharov   +10 more
core   +1 more source

Baryon acoustic oscillations from the cross-correlation of Lyαabsorption and quasars in eBOSS DR14 [PDF]

open access: hybrid, 2019
Michael Blomqvist   +17 more
openalex   +1 more source

Baryon Asymmetry in a Heavy Moduli Scenario

open access: yes, 2007
In some models of supersymmetry breaking, modulus fields are heavy enough to decay before BBN. But the large entropy produced via moduli decay significantly dilutes the preexisting baryon asymmetry of the universe. We study whether Affleck-Dine mechanism
A. Anisimov   +3 more
core   +1 more source

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