Fri·Nov 14, 2014Friday·November 14, 2014

1. 01*

   Determining Compositeness of Hadronic Resonances: the $\Lambda (1405)$ Radiative Decay and the $a_0(980)$-$f_0(980)$ Mixing

   T. Sekihara (RCNP, Osaka Univ.)🇯🇵 · S. Kumano (KEK, Tsukuba)🇯🇵

   Recently the concept of compositeness has been developed so as to distinguish whether interested hadrons are hadronic molecules or not. Here, in terms of compositeness, we investigate $\bar{K}N$ molecular structure of the $\Lambda (1405)$ resonance with the $\Lambda (1405)$ radiative decay and $K\bar{K}$ molecular structure of the $a_0(980)$ and $f_0(980)$ resonances with the $a_0(980)$-$f_0(980)$ mixing.

   ↳ hep-phhep-exnucl-exnucl-thJPS Conf.Proc.(2015)·4 citations
2. 02*

   Emergent Soft Monopole Modes in Weakly-Bound Deformed Nuclei

   J.C. Pei🇨🇳 · M. Kortelainen🇫🇮 · Y.N. Zhang🇨🇳 · F.R. Xu🇨🇳

   Based on the Hartree-Fock-Bogoliubov solutions in large deformed coordinate spaces, the finite amplitude method for quasiparticle random phase approximation (FAM-QRPA) has been implemented, providing a suitable approach to probe collective excitations of weakly-bound nuclei embedded in the continuum. The monopole excitation modes in Magnesium isotopes up to the neutron drip line have been studied with the FAM-QRPA framework on both the coordinate-space and harmonic oscillator basis methods. Enhanced soft monopole strengths and collectivity as a result of weak-binding effects have been unambiguously demonstrated.

   ↳ nucl-thcond-mat.quant-gasnucl-exPRC(2014)·29 citations
3. 03*

   Feasibility Study of $\varphi$(1020) Production at NICA/MPD

   L.S.Yordanova🇷🇺 · V.I. Kolesnikov🇷🇺

   The goal of this article is to give information about the new accelerator complex NICA at JINR, to provide overview of the MultiPurpose Detector (MPD) and its sub-detectors and to present the current results of the MPD performance for $\varphi$-meson production.

   ↳ physics.ins-detnucl-ex0 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.