# CERN Preprints

2023-01-27
11:16
 Machine Learning in Top Physics in the ATLAS and CMS Collaborations / Keicher, Philip Daniel (Hamburg U.) /ATLAS and CMS Collaborations Machine learning is essential in many aspects of top-quark related physics in the ATLAS and CMS Collaborations. This work aims to give a brief overview over current applications in the two collaborations as well as on-going studies for future applications.\footnote{Copyright 2023 CERN for the benefit of the ATLAS and CMS Collaborations. Reproduction of this article or parts of it is allowed as specified in the CC-BY-4.0 license} CMS-CR-2023-006.- Geneva : CERN, 2023 - 9 p. Fulltext: PDF; In : 15th International Workshop on Top-Quark Physics (TOP 2022), Durham, UK, 4 - 9 Sep 2022

2023-01-27
08:40
 Modeling HI at the field level / Obuljen, Andrej (Zurich U.) ; Simonović, Marko (CERN) ; Schneider, Aurel (Zurich U.) ; Feldmann, Robert (Zurich U.) We use an analytical forward model based on perturbation theory to predict the neutral hydrogen (HI) overdensity maps at low redshifts. [...] CERN-TH-2022-127 ; arXiv:2207.12398. - 23 p. Fulltext

2023-01-27
08:28
 Phase Transitions in Particle Physics -- Results and Perspectives from Lattice Quantum Chromo-Dynamics / Aarts, Gert (Swansea U. ; ECT, Trento ; Fond. Bruno Kessler, Trento) ; Aichelin, Joerg (SUBATECH, Nantes) ; Allton, Chris (Swansea U.) ; Athenodorou, Andreas (INFN, Pisa ; Cyprus Inst.) ; Bachtis, Dimitrios (Swansea U., Math. Dept.) ; Bonanno, Claudio (INFN, Florence ; Madrid, IFT ; Madrid, Autonoma U.) ; Brambilla, Nora (Munich, Tech. U.) ; Bratkovskaya, Elena (Darmstadt, GSI ; Frankfurt U. ; Helmholtz Res. Acad. Hesse for FAIR) ; Bruno, Mattia (Milan Bicocca U. ; INFN, Milan Bicocca) ; Caselle, Michele (Turin U.) et al. Phase transitions in a non-perturbative regime can be studied by ab initio Lattice Field Theory methods. [...] arXiv:2301.04382. - 89 p. Fulltext

2023-01-27
08:26
 Measuring $\mu_{B}$ at the LHC with ALICE / Ciacco, Mario The baryon chemical potential $\mu_B$ is a fundamental parameter for the statistical mechanical description of particle production in heavy-ion collisions: its value encodes the average net baryon content of the fireball at chemical freeze-out. [...] arXiv:2301.11091. - 7 p. Fulltext

2023-01-27
08:14
 Azimuthal di-jet correlations with parton branching TMD distributions / Bermudez Martinez, A. (DESY) ; Hautmann, F. (CERN ; Antwerp U. ; U. Oxford (main)) The parton branching formulation of TMD evolution has recently been used to make predictions for jet observables at the Large Hadron Collider (LHC), including perturbative matching at next-to-leading order (NLO). [...] arXiv:2208.08446 ; CERN-TH-2022-137 ; DESY-22-135. - 7 p. Fulltext

2023-01-27
05:58
 Production measurements of heavy quarks in pp collisions at $\sqrt{s}$ = 13 TeV with the ALICE detector / Shaba, Tebogo Joyce (Cape Town U.) Heavy-flavour production measurements in pp collisions are important tools to test theoretical models based on perturbative quantum chromodymanics (pQCD) and to investigate the heavy-quark hadronization mechanisms. [...] arXiv:2301.11141. - Fulltext

2023-01-26
15:26
 A study of $C\!P$ violation in the decays $B^\pm\to[K^+K^-\pi^+\pi^-]_D h^{\pm}$ ($h = K, \pi$) and $B^\pm\to[\pi^+\pi^-\pi^+\pi^-]_D h^{\pm}$ The first study of $C\!P$ violation in the decay mode $B^\pm\to[K^+K^-\pi^+\pi^-]_D h^{\pm}$, with $h=K,\pi$, is presented, exploiting a data sample of proton-proton collisions collected by the LHCb experiment that corresponds to an integrated luminosity of $9$ fb$^{-1}$. [...] CERN-EP-2022-285 ; arXiv:2301.10328 ; LHCB-PAPER-2022-037. - 2023. Fulltext - Previous draft version - Related data file(s)

2023-01-26
13:46
 Unfolding the Labyrinth: Open Problems in Mathematics, Physics, Astrophysics, and Other Areas of Science / Smarandache, Florentin ; Christianto, V ; Yuhua, Fu ; Khrapko, R ; Hutchison, J Throughout this book, we discuss some open problems in various branches of science, including mathematics, theoretical physics, astro-physics, geophysics etc. [...] math/0609238. - 2006. - 139 p. VIXRA - Full text

2023-01-26
13:46
 Diagnostic Needs for Wakefield Accelerator Experiments / Cianchi, A (Rome U., Tor Vergata) Wakefield accelerators are under development in many laboratories worldwide. [...] arXiv:2005.08376. - 2020. - 11 p. Fulltext

2023-01-26
10:58
 Combination of searches for invisible decays of the Higgs boson using 139 fb$^{-1}$ of proton-proton collision data at $\sqrt{s} = 13$ TeV collected with the ATLAS experiment Many extensions of the Standard Model predict the production of dark matter particles at the LHC. [...] CERN-EP-2022-289. - 2023. Fulltext - Previous draft version