Results 41 to 50 of about 69,459 (220)
Charm meson scattering cross sections by pion and rho meson [PDF]
Nucl.Phys. A689 (2001) 965-979, 2000 Using the local flavor SU(4) gauge invariance in the limit of vanishing vector meson masses, we extend our previous study of charm meson scattering cross sections by pion and rho meson, which is based only on the pseudoscalar-pseudoscalar-vector meson couplings, to include also contributions from the couplings among three vector mesons and among four ...
arxiv +1 more source
In-medium Properties of the η′-Meson from Photonuclear Reactions
EPJ Web of Conferences, 2012 Investigations of in-medium properties of the η′-meson are presented. The photoproduction of η′-mesons off 12C, 40Ca, 93Nb and 208Pb nuclei has been measured with the Crystal Barrel/TAPS detector system at the ELSA accelerator in Bonn.
Nanova Mariana
doaj +1 more source
$\bar{\mathrm{D}}$ and $\mathrm{B}$ mesons in nuclear medium [PDF]
Phys. Rev. C87, 015202 (2013), 2012 We discuss the mass modifications of $\bar{\mathrm{D}}$ and $\bar{\mathrm{D}}^{\ast}$ ($\mathrm{B}$ and $\mathrm{B}^{\ast}$) mesons in nuclear medium. The heavy quark symmetry for $\bar{\mathrm{D}}$ and $\bar{\mathrm{D}}^{\ast}$ ($\mathrm{B}$ and $\mathrm{B}^{\ast}$) mesons is adopted, and the interaction between a $\bar{\mathrm{D}}$ or $\bar{\mathrm{D}
arxiv +1 more source
Progress of Theoretical Physics, 1953 Recently O'Ceallalghl ) has found m the cosmic ray a new heavy meson (x-meson), which seems todistntegrate mto one charged J.I-meson and one or more neutral particles_ He also has found the lifetime of a new particle IS about 10-9 . sec. As the experimental facts seem to indicate us that x-meson distntegrates at least into three seccndary particles, we
openaire +2 more sources
Meson-meson interactions in a nonperturbative chiral approach [PDF]
Physical Review D, 1999 27 pages, 12 figures.
Oller, JA +2 more
openaire +6 more sources
Meson exchange models for meson production [PDF]
AIP Conference Proceedings, 2000 Invited talk at the 4th International Conference on Physics at Storage Rings (STORI99), Bloomington, IN USA, Sept.
openaire +3 more sources
Theoretical study of the γγ→meson-meson reaction [PDF]
AIP Conference Proceedings, 1998 We present a unified picture which studies simultaneously the gamma gamma-->pi^+ pi^-, pi^0 pi^0, K^+ K^-, K^0 bar{K}^0, pi^0 eta reactions up to about sqrt(s)=1.4 GeV reproducing the experimental cross sections. The present work implements in an accurate way the final state interactions of the meson-meson system, which is shown to be essential in ...
Oller Berber, José Antonio +1 more
openaire +7 more sources
Ordinary and Extraordinary Hadrons [PDF]
AIPConf.Proc.964:1-13,2007; Prog.Theor.Phys.Suppl.168:127-142,2007, 2007 Resonances and enhancements in meson-meson scattering can be divided into two classes distinguished by their behavior as the number of colors N_c in QCD becomes large: The first are ordinary mesons that become stable as N_c goes to infinity. This class includes textbook q-bar q mesons as well as glueballs and hybrids.
arxiv +1 more source