Nuclear Theory·nucl-th

Monday·August 17, 2015

5 papers—2 primary·3 cross-listed

01
[Submitted on 14 Aug 2015]
Hadron interferences in the proton induced coherent $η$ meson production reaction on a scalar-isovector nucleus
Swapan Das🇮🇳
The coherent $η$ meson energy $E_{η}$ distribution spectra in the proton nucleus reaction have been calculated to investigate the $π^{0} - η$ mesons' interference, in addition to the study of resonance $N^{*}$ dynamics in the nucleus. The elementary reaction occurring in the nucleus is assumed to proceed as $pN \to p N^{*}$ ; $N^{*} \to N η$ . Born terms in the intermediate state is also considered. In a scalar-isovector nucleus, this reaction occurs because of $π^{0}$ and $η$ meson exchange interactions for the forward going proton and $η$ meson; other meson exchange potentials do not contribute in this process. The sensitivity of the cross section to the hadron nucleus interactions, and the beam energy dependence of the cross section are studied for this reaction.
Comments:
20 pages, 5 figures
Subjects:
Nuclear Theory (nucl-th)
arXiv:
1508.03423 [pdf]
PRC(2015)·2 citations
02
[Submitted on 14 Aug 2015]
J=3/2 charmed hypertriton
H. Garcilazo🇲🇽 · A. Valcarce🇪🇸 · T.F. Carames🇪🇸
By solving exact three-body equations, we study the three-baryon system with charm $+ 1$ . We look for possible bound states using baryon-baryon interactions obtained from a chiral constituent quark model. The smaller effect of the $Λ_{c} \leftrightarrow Σ_{c}$ conversion reverses the order of the $(I, J) = (0, 1/2)$ and $(I, J) = (0, 3/2)$ states, rather close on the strange sector. The diminishing of the kinetic energy due to the large reduced mass gives rise to a bound state in the $(I, J) = (0, 3/2)$ channel. After correcting for Coulomb effects the binding energy would be between 140 and 715 keV.
Comments:
12 pages, 5 figures. To appear in Phys. Rev. C. arXiv admin note: text overlap with arXiv:hep-ph/0701275
Subjects:
Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph)
arXiv:
1508.03535 [pdf]
PRC(2015)·23 citations

Affiliations

first authorsco-authorsvia INSPIRE

Hadron interferences in the proton induced coherent η meson production reaction on a scalar-isovector nucleus

J=3/2 charmed hypertriton

Affiliations

Hadron interferences in the proton induced coherent $η$ meson production reaction on a scalar-isovector nucleus