Wed·Nov 9, 2016Wednesday·November 9, 2016

1. 01*

   Charmonium physics with heavy ions: experimental results

   E. Scomparin🇮🇹

   Thirty years ago, the suppression of charmonium production in heavy-ion collisions was first proposed as an unambiguous signature for the formation of a Quark-Gluon Plasma. Since then, experiments at fixed-target accelerators (SPS) and hadronic colliders (RHIC, LHC) have investigated this observable and discovered a wide range of effects, that have been related to the original proposal but at the same time have also prompted a strong development in the underlying theory concepts. In this contribution, I will review the main achievements of this field, with emphasis on recent results obtained by LHC experiments.

   nucl-exPoS(2016)·2 citations
2. 02*

   The e-ASTROGAM mission (exploring the extreme Universe with gamma rays in the MeV-GeV range)

   Alessandro De Angelis🇮🇹 · Vincent Tatischeff🇫🇷 · Marco Tavani🇮🇹 · Uwe Oberlack🇩🇪 · Isabelle A. Grenier🇫🇷 · Lorraine Hanlon🇮🇪 · Roland Walter🇨🇭 · Andrea Argan🇮🇹 · Peter von Ballmoos🇫🇷 · Andrea Bulgarelli🇮🇹 · Immacolata Donnarumma🇮🇹 · Margarita Hernanz🇪🇸 and 62 other authors

   e-ASTROGAM (`enhanced ASTROGAM') is a breakthrough Observatory mission dedicated to the study of the non-thermal Universe in the photon energy range from 0.3 MeV to 3 GeV. The mission is based on an advanced space-proven detector technology, with unprecedented sensitivity, angular and energy resolution, combined with polarimetric capability. In the largely unexplored MeV-GeV domain, e-ASTROGAM will open a new window on the non-thermal Universe, making pioneering observations of the most powerful Galactic and extragalactic sources, elucidating the nature of their relativistic outflows and their effects on Galactic ecosystems. With a line sensitivity in the MeV energy range one to two orders of magnitude better than previous generation instruments, will determine the origin of key isotopes fundamental for the understanding of supernova explosion and the chemical evolution of our Galaxy. The mission will provide unique data of significant interest to a broad astronomical community, complementary to powerful observatories such as LIGO-Virgo-GEO600-KAGRA, SKA, ALMA, E-ELT, TMT, LSST, JWST, Athena, CTA, IceCube, KM3NeT, and the promise of eLISA. Keywords: High-energy gamma-ray astronomy, High-energy astrophysics, Nuclear Astrophysics, Compton and Pair creation telescope, Gamma-ray bursts, Active Galactic Nuclei, Jets, Outflows, Multiwavelength observations of the Universe, Counterparts of gravitational waves, Fermi, Dark Matter, Nucleosynthesis, Early Universe, Supernovae, Cosmic Rays, Cosmic antimatter.

   ↳ astro-ph.HEastro-ph.IMastro-ph.SRnucl-exExper.Astron.(2017)·268 citations
3. 03*

   Applications of KP Nuclear Parton Distributions

   Sergey Kulagin🇷🇺 · Roberto Petti🇺🇸

   We review the nuclear parton distribution functions computed on the basis of our microscopic model taking into account a number of nuclear effects including Fermi motion and nuclear binding, nuclear meson-exchange currents, off-shell corrections to bound nucleon distributions and nuclear shadowing. We discuss applications to a number of different processes including lepton-nucleus deep inelastic scattering, proton-nucleus Drell-Yan lepton pair production at Fermilab, as well as $W^{\pm }$ and $Z^0$ boson production in proton-lead collisions at the LHC.

   ↳ hep-phhep-exnucl-exnucl-thPoS(2016)·0 citations
4. 04*

   Mean pion multiplicities in Ar+Sc collisions

   Michał Naskręt🇵🇱

   Preliminary results for mean negatively charged pion multiplicities $⟨{\pi }^{-}⟩$ using the $h^{-}$ method are presented for central Ar+Sc collisions at 13, 19, 30, 40, 75 and 150\textit{A} GeV/c beam momentum. The data were recorded by the NA61/SHINE detector at the CERN SPS. Starting with rapidity distributions $dn/dy$ the procedure of obtaining total multiplicities is presented. The mean number of wounded nucleons $⟨W⟩$ extracted from the Glissando MC model is used to calculate the ratio $⟨{\pi }^{-}⟩/⟨W⟩.$ The results are compared to those from other experiments and their dependence on colliding systems and collision energy is discussed.

   ↳ hep-exnucl-exActa Phys.Polon.Supp.(2017)·6 citations
5. 05*

   Calculation of three-body nuclear reactions with angular-momentum and parity-dependent optical potentials

   A. Deltuva🇱🇹 · D. Jurčiukonis🇱🇹

   Angular-momentum or parity-dependent nonlocal optical potentials for nucleon-${}^{16}\mathrm{O}$ scattering able to fit differential cross section data over the whole angular regime are developed and applied to the description of deuteron-${}^{16}\mathrm{O}$ scattering in the framework of three-body Faddeev-type equations for transition operators. Differential cross sections and deuteron analyzing powers for elastic scattering and ${}^{16}\mathrm{O}(d,p){}^{17}\mathrm{O}$ transfer reactions are calculated using a number of local and nonlocal optical potentials and compared with experimental data. Angular-momentum or parity-dependence of the optical potential turns out to be quite irrelevant in the considered three-body reactions while nonlocality is essential for a successful description of the differential cross section data, especially in transfer reactions.

   ↳ nucl-thnucl-exPRC(2016)·3 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.