Fri·Feb 16, 2024Friday·February 16, 2024

1. 01*

   NA61/SHINE overview

   P. Podlaski🇵🇱

   NA61/SHINE is a multipurpose fixed-target experiment at the CERN Super Proton Synchrotron. The main goals of the NA61/SHINE strong interaction program are to discover the critical point of strongly interacting matter as well as to study the properties of produced particles relevant for the study of the onset of deconfinement -- the transition between the state of hadronic matter and the quark-gluon plasma. An analysis of hadron production properties is performed in proton-proton, proton-nucleus and nucleus-nucleus interactions as a function of collision energy and size of the colliding nuclei to achieve these goals. The NA61/SHINE results from a strong interaction measurement program are presented. In particular, the latest results from different reactions Ar+Sc, Xe+La, and Pb+Pb on hadron spectra and fluctuations are discussed. Additionally, the recent measurements of kaon production in Ar+Sc collisions at $\sqrt{s_{NN}}=11.94\text{GeV}$ are mentioned. The NA61/SHINE results are compared with worldwide experiments and predictions of various models, like EPOS, PHSD, UrQMD, and others.

   nucl-exhep-exEPJ Web Conf.(2024)·8 citations
2. 02*

   Demonstration of nuclear gamma-ray polarimetry based on a multi-layer CdTe Compton Camera

   S. Go🇺🇸 · Y. Tsuzuki · H. Yoneda🇩🇪 · Y. Ichikawa🇯🇵 · T. Ikeda🇯🇵 · N. Imai🇯🇵 · K. Imamura · M. Niikura🇯🇵 · D. Nishimura🇯🇵 · R. Mizuno🇯🇵 · S. Takeda · H. Ueno🇯🇵 and 6 other authors

   To detect and track structural changes in atomic nuclei, the systematic study of nuclear levels with firm spin-parity assignments is important. While linear polarization measurements have been applied to determine the electromagnetic character of gamma-ray transitions, the applicable range is strongly limited due to the low efficiency of the detection system. The multi-layer Cadmium-Telluride (CdTe) Compton camera can be a state-of-the-art gamma-ray polarimeter for nuclear spectroscopy with the high position sensitivity and the detection efficiency. We demonstrated the capability to operate this detector as a reliable gamma-ray polarimeter by using polarized 847-keV gamma rays produced by the ${}^{56}\mathrm{Fe}(p,p^{\prime }\gamma )$ reaction. By combining the experimental data and simulated calculations, the modulation curve for the gamma ray was successfully obtained. A remarkably high polarization sensitivity was achieved, compatible with a reasonable detection efficiency. Based on the obtained results, a possible future gamma-ray polarimetery is discussed.

   ↳ astro-ph.IMnucl-exphysics.ins-detScientific Reports volume 14, Article num…·2 citations
3. 03*

   The QCD phase diagram and Beam Energy Scan physics: a theory overview

   Lipei Du🇨🇦 · Agnieszka Sorensen🇺🇸 · Mikhail Stephanov🇺🇸

   We review recent theoretical developments relevant to heavy-ion experiments carried out within the Beam Energy Scan program at the Relativistic Heavy Ion Collider. Our main focus is on the description of the dynamics of systems created in heavy-ion collisions and establishing the necessary connection between the experimental observables and the QCD phase diagram.

   ↳ nucl-thhep-exhep-phnucl-exIJMPE(2024)·93 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.