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2024-11-25
12:57
Search for Higgs boson decays into a $Z$ boson and a light hadronically decaying resonance in 140 fb$^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detector
A search for decays of the Higgs boson into a $Z$ boson and a light resonance, with a mass of 0.5-3.5 GeV, is performed using the full 140 fb$^{-1}$ dataset of 13 TeV proton-proton collisions recorded by the ATLAS detector during Run 2 of the LHC. [...]
CERN-EP-2024-261. - 2024
Fulltext - Previous draft version

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2024-11-25
11:10
Search for long-lived particles decaying to a pair of muons in proton-proton collisions at $\sqrt s$ = 13.6 TeV with 2022 data / Lopez Ruiz, Ruben (Cantabria Inst. of Phys.) /CMS Collaboration
Presented here is an inclusive search for long-lived particles decaying to a pair of displaced muons. This search analyzes data collected in 2022 by the CMS experiment at the CERN LHC in proton-proton collisions at $\sqrt s$=13.6 TeV, adding up to an integrated luminosity of 36.6 fb$^{-1}$. [...]
CMS-CR-2024-291.- Geneva : CERN, 2024 - 6 p. Fulltext: PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024

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2024-11-25
11:10
New ideas for measurements and searches at the HL-LHC / Soffi, Livia (INFN, Rome) /ALICE,ATLAS,CMS and LHCB Collaborations
The High-Luminosity Large Hadron Collider (HL-LHC) will operate at unprecedented luminosity, with substantial data boosts enhancing the search for new physics and precision measurements. This paper explores advancements in detector technology, novel search strategies, and cutting-edge analysis techniques aimed at maximizing the HL-LHC's physics potential. [...]
CMS-CR-2024-289.- Geneva : CERN, 2024 - 8 p. Fulltext: PDF;
In : 12th Edition of the Large Hadron Collider Physics Conference, Boston, Us, 3 - 7 Jun 2024

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2024-11-24
10:42
Search for rare decays of the Z and Higgs bosons to a $ \mathrm{J}/\psi $ or $\psi(2\text{S})$ meson and a photon in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
A search is presented for rare decays of the Z and Higgs bosons to a photon and a $ \mathrm{J}/\psi $ or a $\psi(2\text{S})$ meson, with the charmonium state subsequentially decaying to a pair of muons. [...]
CERN-EP-2024-253 ; CMS-SMP-22-012-003. - 2024
Additional information for the analysis - CMS AuthorList - Fulltext

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2024-11-23
04:25
Bounds on the bubble wall velocity / Ai, Wen-Yuan (King's Coll. London) ; Laurent, Benoit (McGill U., Montreal (main)) ; van de Vis, Jorinde (CERN)
Determining the bubble wall velocity in first-order phase transitions is a challenging task, requiring the solution of (coupled) equations of motion for the scalar field and Boltzmann equations for the particles in the plasma. [...]
CERN-TH-2024-198 ; KCL-PH-TH/2024-57 ; arXiv:2411.13641. - 47.
Fulltext

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2024-11-23
04:23
Search for flavour-changing neutral current couplings between the top quark and the Higgs boson in multilepton final states with the ATLAS detector / Wahdan, Shayma (Wuppertal U.)
These proceedings present a search for flavour-changing neutral-current (FCNC) interaction involving the top quark, Higgs boson and either the up or the charm quark, using 140 fb$^{-1}$ of 13 TeV proton--proton collision data from the ATLAS detector at the Large Hadron Collider. [...]
arXiv:2411.14026. -
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2024-11-22
04:22
A generalized picture of colour decoherence in dense QCD media / Abreu, Samuel (CERN ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Mayo López, Xoán (Santiago de Compostela U., IGFAE) ; Milhano, Guilherme (LIP, Lisbon ; Lisbon, IST) ; Soto-Ontoso, Alba (Granada U., Theor. Phys. Astrophys.)
We revisit the calculation of the soft gluon emission probability off a colour-singlet $q\bar q$ system that evolves in a quark-gluon plasma. [...]
arXiv:2410.24135 ; CERN-TH-2024-185. - 34.
Fulltext

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2024-11-22
04:20
The two-loop fully differential soft function for $Q\bar{Q}V$ production at lepton colliders / Liu, Ze Long (Beijing, Inst. High Energy Phys.) ; Monni, Pier Francesco (CERN)
We consider the production of a pair of heavy quarks $Q\bar{Q}$ in association with a generic colour singlet system $V$ at lepton colliders, and present the first analytic calculation of the two-loop soft function differential in the total momentum of the real radiation. [...]
CERN-TH-2024-203 ; arXiv:2411.13466. - 15.
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2024-11-21
18:06
Wide band-gap material sensors for applications in high energy physics experiments
In this presentation the latest developments on detectors made of wide-band-gap materials for applications in high energy physics experiments will be discussed. In particular the status of SiC, GaN and Diamond based detector developments will be reviewed and the plans of the newly formed DRD3 collaboration with it's focus on wide-bandgap materials in working group 6 will be presented. [...]
CERN-DRD3-2024-004.- Geneva : CERN, 2024 slides: PDF;
In : Eleventh International Workshop on Semiconductor Pixel Detectors for Particles and Imaging, Strasbourg, Grand Est, Fr, 18 - 22 Nov 2024

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2024-11-21
04:07
SymbolFit: Automatic Parametric Modeling with Symbolic Regression / Tsoi, Ho Fung (UPenn, Philadelphia) ; Rankin, Dylan (UPenn, Philadelphia) ; Caillol, Cecile (CERN) ; Cranmer, Miles (Cambridge U. (main)) ; Dasu, Sridhara (U. Wisconsin, Madison (main)) ; Duarte, Javier (UC, San Diego (main)) ; Harris, Philip (MIT ; Harvard U. (main) ; IAIFI, Cambridge) ; Lipeles, Elliot (UPenn, Philadelphia) ; Loncar, Vladimir (MIT ; Belgrade, Inst. Phys.)
We introduce SymbolFit, a framework that automates parametric modeling by using symbolic regression to perform a machine-search for functions that fit the data, while simultaneously providing uncertainty estimates in a single run. [...]
arXiv:2411.09851. - 53.
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