55. International Winter Meeting on Nuclear Physics

Session

Friday Afternoon

27 Jan 2017, 17:00

Bormio, Italy

27. Signals for dynamical process form IMF-IMF correlation function

Dr Emanuele Vincenzo Pagano (LNS-INFN)

27/01/2017, 17:00

Short Contribution

In Heavy Ion Collisions (HIC) at Fermi energies (10 MeV/nucleon ≤ E/A ≤ 100 MeV/nucleon) hot nuclear systems are produced and they may disassemble by a variety of dynamical and statistical mechanisms with vastly different time scales (neck emission, fission, multifragmentation, fusion-evaporation, ecc.). The space-time sensitivity of the fragment-fragment Correlation Function to the...

15. Kaon-Production in Pion-Induced Reactions at 1.7 GeV/c

Ms Joana Wirth (TU München)

27/01/2017, 17:20

Short Contribution

The production and properties of $K_S^0$, $K^{+}$, $\mathrm{\Phi }$ and $K^{-}$ in cold nuclear matter generated in pion-nucleon reactions (${\pi }^{-}+A$, $A=C,W$) at $p_{{\pi }^{-}}=1.7$ GeV/c has been investigated with the HADES detector at GSI. Similar to the $K^0$ production at the surface of the nuclei ($\sigma \sim A^b,b=2/3$), as already verified by the FOPI collaboration, it was assumed to apply...

73. The continuing story of two-photon exchange: results from the OLYMPUS experiment

Dr Axel Schmidt (MIT)

27/01/2017, 18:00

Short Contribution

Over the past two decades, a discrepancy has emerged between two different techniques for measuring the proton's electromagnetic form factors. Unpolarized electron-proton cross section measurements paint a picture of the proton's internal structure that is incompatible with measurements from polarization transfer experiments. The leading hypothesis is that the discrepancy is caused by a...

22. Bottomia physics at RHIC and LHC energies

Prof. Georg Wolschin (U Heidelberg)

27/01/2017, 18:20

Short Contribution

The suppression of Y mesons in the hot quark-gluon medium (QGP) versus reduced feed-down is investigated in UU collisions at RHIC energies and PbPb collisions at LHC energies. Our centrality- and p_T-dependent model encompasses screening, collisional damping and gluodissociation in the QGP. For Y(1S) it is in agreement with both STAR and CMS data provided the relativistic Doppler effect and...

38. Measurement of polarization transfer to a bound proton at large virtuality

Dr Ulrich Müller (Inst. für Kernphysik, Univ. Mainz)

27/01/2017, 18:40

Short Contribution

A measurement of the ratio $P_x/P_z$ of polarization transfer components in the $\mathrm{D}(\overrightarrow{e},e^{\prime }\overrightarrow{p})n$ reaction at different missing momenta will be reported. The $P_x/P_z$ ratio observed for H, D, and ${}^4\mathrm{He}$, respectively, indicates a dependency on the proton's virtuality and the missing momentum direction, but not the average nuclear density.