Tue·Jun 27, 2017Tuesday·June 27, 2017

1. 01*

   Extension of the J-PARC Hadron Experimental Facility - summary report -

   Hiroyuki Fujioka🇯🇵 · Kenneth Hicks🇺🇸 · Yoichi Igarashi🇯🇵 · Kenta Itahashi🇯🇵 · Takeshi K. Komatsubara🇯🇵 · Kouji Miwa🇯🇵 · Tomofumi Nagae🇯🇵 · Satoshi N. Nakamura🇯🇵 · Hajime Nanjo🇯🇵 · Hiroyuki Noumi🇯🇵 · Hiroaki Ohnishi🇯🇵 · Shinji Okada🇯🇵 and 9 other authors

   The committee for the study of the extension of the Hadron Experimental Facility was formed under the Hadron Hall Users' Association in August, 2015. This document is a summary of the discussions among the committee members, and documented by a part of the members listed below.

   nucl-exhep-ex18 citations
2. 02*

   Production of muons from heavy-flavour hadron decays at forward rapidity in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02\mathrm{TeV}$}

   Zuman Zhang (for the ALICE Collaboration)🇨🇳

   The measurement of the production of single muons from heavy-flavour hadron decays at forward rapidity in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02\mathrm{TeV}$ collected in 2015 is presented as a function of transverse momentum ($p_{\mathrm{T}}$) and collision centrality. A strong suppression of the yield is observed at high $p_{\mathrm{T}}$ in the most central collisions compared to the binary-scaled expectation from pp collisions at the same energy. The $p_{\mathrm{T}}$-integrated nuclear modification factor ($R_{\mathrm{AA}}$) as function of the number of participating nucleons indicates an increase of the suppression from peripheral to central collisions. Comparisons with the results for Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76\mathrm{TeV}$ and with transport model predictions are shown. A similar suppression is measured at both $\sqrt{s_{\mathrm{NN}}}=2.76\mathrm{TeV}$ and 5.02 TeV. The results available from $p_{\mathrm{T}}=$7 GeV/$c$ up to $p_{\mathrm{T}}=$20 GeV/$c$, will provide new constraints on transport model ingredients and new insights on the understanding of the evolution of the hot and dense matter formed in ultra-relativistic heavy-ion collisions.

   ↳ hep-exnucl-exNucl.Part.Phys.Proc.(2017)·1 citation
3. 03*

   Formation of exotic baryon clusters in ultra-relativistic heavy-ion collisions

   A.S.Botvina (Frankfurt U., FIAS, ITP & Moscow, INR)🇩🇪 · J.Steinheimer (Frankfurt U., FIAS)🇩🇪 · M.Bleicher (Frankfurt U., FIAS, ITP & Juelich FZJ, NIC, JSC)🇩🇪

   Recent experiments at RHIC and LHC have demonstrated that there are excellent opportunities to produce light baryonic clusters of exotic matter (strange and anti-matter) in ultra-relativistic ion collisions. Within the hybrid-transport model UrQMD we show that the coalescence mechanism can naturally explain the production of these clusters in the ALICE experiment at LHC. As a consequence of this mechanism we predict the rapidity domains where the yields of such clusters are much larger than the observed one at midrapidity. This new phenomenon can lead to unique methods for producing exotic nuclei.

   ↳ nucl-thhep-phnucl-exPRC(2017)·18 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.