Nuclear Theory·nucl-th

Wednesday·June 29, 2016

13 papers—10 primary·3 cross-listed

11
[Submitted on 28 Jun 2016] (cross-list from nucl-ex)
Charge-changing-cross-section measurements of $^{12 - 16}$ C at around $45 A$ MeV and development of a Glauber model for incident energies $10 A - 2100 A$ MeV
D.T. Tran · H.J. Ong · T.T. Nguyen · I. Tanihata · N. Aoi · Y. Ayyad · P.Y. Chan · M. Fukuda · T. Hashimoto · T.H. Hoang · E. Ideguchi · A. Inoue and 17 other authors
We have measured for the first time the charge-changing cross sections ( $σ_{CC}$ ) of $^{12 - 16}$ C on a $^{12}$ C target at energies below $100 A$ MeV. To analyze these low-energy data, we have developed a finite-range Glauber model with a global parameter set within the optical-limit approximation which is applicable to reaction cross section ( $σ_{R}$ ) and $σ_{CC}$ measurements at incident energies from 10 $A$ to $2100 A$ MeV. Adopting the proton-density distribution of $^{12}$ C known from the electron-scattering data, as well as the bare total nucleon-nucleon cross sections, and the real-to-imaginary-part ratios of the forward proton-proton elastic scattering amplitude available in the literatures, we determine the energy-dependent slope parameter $β_{pn}$ of the proton-neutron elastic differential cross section so as to reproduce the existing $σ_{R}$ and interaction-cross-section data for $^{12}$ C+ $^{12}$ C over a wide range of incident energies. The Glauber model thus formulated is applied to calculate the $σ_{R}$ 's of $^{12}$ C on a $^{9}$ Be and $^{27}$ Al targets at various incident energies. Our calculations show excellent agreement with the experimental data. Applying our model to the $σ_{R}$ and $σ_{CC}$ for the "neutron-skin" $^{16}$ C nucleus, we reconfirm the importance of measurements at incident energies below $100 A$ MeV. The proton root-mean-square radii of $^{12 - 16}$ C are extracted using the measured $σ_{CC}$ 's and the existing $σ_{R}$ data. The results for $^{12 - 14}$ C are consistent with the values from the electron scatterings, demonstrating the feasibility, usefulness of the $σ_{CC}$ measurement and the present Glauber model.
Comments:
8 pages, 4 figures
Subjects:
Nuclear Experiment (nucl-ex); Nuclear Theory (nucl-th)
arXiv:
1606.08575 [pdf]
PRC(2016)·31 citations
12
[Submitted on 28 Jun 2016] (cross-list from hep-ph)
Exotic hadrons: review and perspectives
Jean-Marc Richard🇫🇷
The physics of exotic hadrons is revisited and reviewed, with emphasis on flavour configurations which have not yet been investigated. The constituent quark model of multiquark states is discussed in some detail, as it can serve as a guide for more elaborate approaches.
Comments:
24 pages, review article, last update of references, to be published in Few-Body Systems, special issue for the 30th anniversary of this journal
Subjects:
High Energy Physics — Phenomenology (hep-ph); High Energy Physics — Experiment (hep-ex); Nuclear Theory (nucl-th)
arXiv:
1606.08593 [pdf]
Few Body Syst.(2016)·203 citations
13
[Submitted on 28 Jun 2016] (cross-list from hep-ph)
Heavy Hadrons in Nuclear Matter
Atsushi Hosaka🇯🇵 · Tetsuo Hyodo🇯🇵 · Kazutaka Sudoh🇯🇵 · Yasuhiro Yamaguchi🇯🇵 · Shigehiro Yasui🇯🇵
Current studies on heavy hadrons in nuclear medium are reviewed with a summary of the basic theoretical concepts of QCD, namely chiral symmetry, heavy quark spin symmetry, and the effective Lagrangian approach. The nuclear matter is an interesting place to study the properties of heavy hadrons from many different points of view. We emphasize the importance of the following topics: (i) charm/bottom hadron-nucleon interaction, (ii) structure of charm/bottom nuclei, and (iii) QCD vacuum properties and hadron modifications in nuclear medium. We pick up three different groups of heavy hadrons, quarkonia ( $J / ψ$ , $Υ$ ), heavy-light mesons ( $D$ / $D ˉ$ , $B ˉ$ / $B$ ) and heavy baryons ( $Λ_{c}$ , $Λ_{b}$ ). The modifications of those hadrons in nuclear matter provide us with important information to investigate the essential properties of heavy hadrons. We also give the discussions about the heavy hadrons, not only in nuclear matter with infinite volume, but also in atomic nuclei with finite baryon numbers, to serve future experiments.
Comments:
107 pages, 24 figures
Subjects:
High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
arXiv:
1606.08685 [pdf]
PPNP(2017)·150 citations

Affiliations

first authorsco-authorsvia INSPIRE

Charge-changing-cross-section measurements of 12−16C at around 45A MeV and development of a Glauber model for incident energies 10A−2100A MeV

Exotic hadrons: review and perspectives

Heavy Hadrons in Nuclear Matter

Affiliations

Charge-changing-cross-section measurements of $^{12 - 16}$ C at around $45 A$ MeV and development of a Glauber model for incident energies $10 A - 2100 A$ MeV