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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.
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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.
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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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2024-11-20
13:20
Search for BSM Physics in High-Mass Diphoton Events at CMS / Kamble, Samadhan (Indian Inst. Tech., Madras) /CMS Collaboration
We present the results from an extensive search for BSM particles in `high-mass diphoton events', a distinctive phase-space indicative of various SM extensions such as Supersymmetry, extra dimensions, and non-minimal Higgs sectors. The searches for both spin-0 and spin-2 particles in resonant as well as non-resonant scenarios were carried out using the full luminosity of the LHC Run-II in proton-proton collisions at $\sqrt{s}$ = 13 TeV with the CMS detector. [...]
CMS-CR-2024-312.- Geneva : CERN, 2024 - 6 p. Fulltext: PDF;
In : XVII International Conference on Interconnections between Particle Physics and Cosmology: PPC 2024, Hyderabad, In, 14 - 18 Oct 2024

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2024-11-20
13:20
Higgs boson production cross section and couplings in the W boson pair decay channel in pp collisions at $\sqrt{s}= 13$ TeV with the CMS detector / Dash, Ganapati (Indian Inst. Tech., Madras) /CMS Collaboration
The production cross sections of the Standard Model Higgs boson decaying into a pair of W bosons have been measured in proton-proton collisions at a center-of-mass energy of 13 TeV. The analysis targets Higgs bosons produced through gluon-gluon fusion, vector boson fusion, and in association with a vector boson. [...]
CMS-CR-2024-309.- Geneva : CERN, 2024 - 4 p. Fulltext: PDF;
In : XVII International Conference on Interconnections between Particle Physics and Cosmology: PPC 2024, Hyderabad, In, 14 - 18 Oct 2024

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2024-11-20
13:20
Rare $b \rightarrow sll$ decays at 13 $TeV$ by CMS Detector / Nayak, Samarendra (Bhubaneswar, NISER) /CMS Collaboration
Recent results on the rare $b \rightarrow sll$ decays are presented by the CMS experiment at 13 $TeV$. The individual branching fraction results of $B^{\pm} \rightarrow K^{\pm}\mu^{+}\mu^{-}$ and $B^{\pm} \rightarrow K^{\pm}e^{+}e^{-}$ decays are shown along with the lepton flavor universality (LFU). [...]
CMS-CR-2024-306.- Geneva : CERN, 2024 - 5 p. Fulltext: PDF;
In : XVII International Conference on Interconnections between Particle Physics and Cosmology: PPC 2024, Hyderabad, In, 14 - 18 Oct 2024

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2024-11-20
13:19
Search for Supersymmetry in single lepton events and reinterpretation in the pMSSM-19 framework / Engelke, Frederic (Aachen, Tech. Hochsch.) /CMS Collaboration
Results are presented from a search for supersymmetry in events with a single electron or muon, and multiple hadronic jets. The data correspond to a sample of proton-proton collisions at $\sqrt{s}=13$ TeV with an integrated luminosity of $138 \ \text{fb}^{-1}$, recorded by the CMS experiment at the LHC. [...]
CMS-CR-2024-305.- 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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