Fri·Sep 27, 2024Friday·September 27, 2024

1. 01*

   Properties of the QCD Matter: A Review of Selected Results from the ALICE Experiment

   Qi-Ye Shou🇨🇳 · Yu-Gang Ma🇨🇳 · Song Zhang🇨🇳 · Jian-Hui Zhu🇨🇳 · Ya-Xian Mao🇨🇳 · Hua Pei🇨🇳 · Zhong-Bao Yin🇨🇳 · Xiao-Ming Zhang🇨🇳 · Dai-Cui Zhou🇨🇳 · Xin-Ye Peng🇨🇳 · Xiao-Zhi Bai🇨🇳 · Ze-Bo Tang🇨🇳 · Yi-Fei Zhang🇨🇳 · Xiao-Mei Li🇨🇳

   The Large Hadron Collider (LHC), the world's largest and most powerful particle accelerator, has been a pivotal tool in advancing our understanding of fundamental physics. By colliding heavy ions (such as lead ions), the LHC recreates conditions similar to those just after the Big Bang. This allows scientists to study the Quark-Gluon Plasma (QGP), a state of matter where quarks and gluons are not confined within protons and neutrons. These studies provide insights into the strong force and the early universe's behavior. In this paper, we provide a comprehensive overview of recent significant findings from A Large Ion Collider Experiment (ALICE) at LHC. The topics encompass measurements regarding to properties of the QGP, particle production, flow and correlations, dileptons, quarkonia and electromagnetic probes, heavy flavor, and jets. Additionally, we introduce future plans for detector upgrades of the ALICE experiment.

   nucl-exhep-exNucl.Sci.Tech.(2024)·45 citations
2. 02*

   Temperature dependent ultracold neutron transmission in D${}_2$ gas $-$ a test of the Young-Koppel model

   G. Bison🇨🇭 · R. Grössle🇩🇪 · K. Kirch🇨🇭 · B. Lauss🇨🇭 · F. Priester🇩🇪 · I. Rienäcker🇨🇭 · G. Zsigmond🇨🇭

   The Young-Koppel model (YK) describes comprehensively the interaction of slow neutrons with diatomic gases such as H${}_2$ and D${}_2$. This paper reports on the first experimental results of ultracold neutron (UCN) scattering over a wide temperature range vindicating the YK model for gaseous D${}_2$ and showing an important difference in the temperature dependence to a low-energy low-temperature approximation (LETA). LETA is confirmed, however, to be valid for monoatomic gases such as Ne. Calculated cross sections for other noble gases were also confirmed for ultracold neutrons. Finally, the total cross section of UCNs in H${}_2$ gas was measured and analyzed applying the Young-Koppel model, however, in a more limited temperature range, confirming the theoretical prediction.

   nucl-exPRC(2025)·2 citations
3. 03*

   DA{\Phi}NE -2023/24 Activity report

   C. Milardi🇮🇹 · D. Alesini🇮🇹 · M. Behtouei · S. Bilanishvili · S. Bini · M. Boscolo · B. Buonomo · S. Cantarella · A. Ciarma · A. De Santis · E. Di Pasquale · C. Di Giulio and 18 other authors

   The DA{\Phi}NE operations during the last year have been devoted to deliver a statistically significant data sample to perform the first-ever measurement of kaonic deuterium X-ray transitions to the fundamental level. Operations for the SIDDHARTA-2 detector using a deuterium gas target started officially on the second half of May 2023, and have been organized in several runs here described.

   ↳ physics.acc-phnucl-ex1 citation
4. 04*

   Measurement of strange baryon production in charged-particle jets in pp and p-Pb collisions with ALICE

   Gijs van Weelden (for the ALICE Collaboration)🇳🇱

   The enhancement of the ratio of strange to non-strange hadrons with increasing charged-particle multiplicity density is often interpreted as a signature of the medium formed in heavy-ion collisions. However, this effect has also been observed in smaller systems, such as pp and p-Pb collisions. Understanding this effect requires a detailed description of the production mechanisms of strange hadrons in and out of jets. In this manuscript are presented published results on the production of ${\mathrm{K}}_{\mathrm{S}}^0$, $\Lambda (\bar{\Lambda })$, ${\Xi }^{\pm }$ and ${\Omega }^{\pm }$ hadrons in charged-particle jets and the underlying event in pp and p-Pb collisions measured by ALICE. In addition, a new analysis of in-jet fragmentation into $\Lambda$ and ${\mathrm{K}}_{\mathrm{S}}^0$ hadrons in pp collisions at $\sqrt{s}=13.6$ TeV using LHC Run 3 data is shown.

   ↳ hep-exnucl-exEPJ Web Conf.(2025)·1 citation
5. 05*

   Unique forbidden beta decays at zero momentum transfer

   Chien-Yeah Seng🇺🇸 · Ayala Glick-Magid🇺🇸 · Vincenzo Cirigliano🇺🇸

   We report an exploratory study of the $\mathcal{O}(\alpha )$ structure-dependent electromagnetic radiative corrections to unique first-forbidden nuclear beta decays. We show that the insertion of angular momentum into the nuclear matrix element by the virtual/real photon exchange opens up the decay at vanishing nuclear recoil momentum which was forbidden at tree level, leading to a dramatic change in the decay spectrum not anticipated in existing studies. We discuss its implications for precision tests on the Standard Model and searches for new physics.

   ↳ hep-phhep-exnucl-exnucl-thPRL(2025)·8 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.