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2024-12-23
16:05
Energy scale and resolution for anti-$k_t$ jets with radius parameters $R=0.2$ and 0.6 measured in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
Jets with different radius parameters $R$ are an important tool to probe quantum chromodynamics processes at different angular scales. [...]
CERN-EP-2024-339. - 2024
Fulltext - Previous draft version

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2024-12-22
16:13
Determination of the strong coupling and its running from measurements of inclusive jet production
The value of the strong coupling $ \alpha_\mathrm{S} $ is determined in a comprehensive analysis at next-to-next-to-leading order accuracy in quantum chromodynamics. [...]
CERN-EP-2024-327 ; CMS-SMP-24-007-003. - 2024
Additional information for the analysis - CMS AuthorList - Fulltext

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2024-12-22
06:07
Adoption of the alpaka performance portability library in the CMS software / Bocci, Andrea (CERN)
FERMILAB-SLIDES-23-090-CMS-CSAID. -
Fermilab Library Server - Fulltext

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2024-12-22
06:07
Optimizing Geant4 Hadronic Model Parameters / Yarba, Julia (Fermilab) ; Genser, Krzysztof (Fermilab) ; Jun, Soon Yung (Fermilab) ; Ribon, Alberto (CERN) ; Uzhinksy, Vladimir (Dubna, JINR)
FERMILAB-SLIDES-23-041-CSAID. -
Fermilab Library Server - Fulltext

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2024-12-21
13:29
Measurement of the W boson decay branching fraction ratio $ \mathcal{B}(\mathrm{ W \to c q })/\mathcal{B}(\mathrm{{W}\to q \bar{q}{}^{'}}) $ in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
The most precise measurement to date of the W boson hadronic decay branching fraction ratio $ R_\mathrm{c}^{\mathrm{W}}=\mathcal{B}(\mathrm{ W \to c q })/\mathcal{B}(\mathrm{{W}\to q \bar{q}{}^{'}}) $ is presented. [...]
CERN-EP-2024-314 ; CMS-SMP-24-009-003. - 2024
Additional information for the analysis - CMS AuthorList - Fulltext

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2024-12-21
04:26
Discriminating between Pseudoscalar Higgs and Toponium States at the LHC and Beyond / Djouadi, Abdelhak (Annecy, LAPP ; Granada U., Theor. Phys. Astrophys.) ; Ellis, John (King's Coll. London ; CERN) ; Quevillon, Jeremie (Annecy, LAPP)
We discuss ways to discriminate at hadron colliders between a quasi-bound toponium state and a pseudoscalar Higgs boson A, as predicted in many extensions of the Standard Model. [...]
KCL-PH-TH/2024-77 ; CERN-TH-2024-219 ; arXiv:2412.15138. - 14.
Fulltext

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2024-12-21
04:24
On Determining $\alpha_s(m_Z)$ from Dijets in $e^+e^-$ Thrust / Benitez, Miguel A. (Salamanca U., IUFFyM) ; Hoang, Andre H. (Vienna U.) ; Mateu, Vicent (Salamanca U., IUFFyM) ; Stewart, Iain W. (Vienna U. ; MIT) ; Vita, Gherardo (CERN)
We update a previous N$^3$LL$^\prime$+${\cal O}(\alpha_s^3)$ determination of the strong coupling from a global fit to thrust data by including newly available perturbative ingredients, upgrading the renormalization scales to include a fully canonical scaling region, and implementing the log resummation in a way which ensures the integrated cross section is unaffected by the the leading $1/Q$ hadronization power corrections. [...]
MIT-CTP 5746 ; CERN-TH-2024-142 ; UWThPh2024-8 ; arXiv:2412.15164. - 66.
Fulltext

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2024-12-21
04:21
On the Interplay of Constraints from $B_s$, $D$, and $K$ Meson Mixing in $Z^\prime$ Models with Implications for $b\to s \nu\bar\nu$ Transitions / Buras, Andrzej J. (TUM-IAS, Munich) ; Stangl, Peter (CERN)
Within $Z^\prime$ models, neutral meson mixing severely constrains beyond the Standard Model (SM) effects in flavour changing neutral current (FCNC) processes. [...]
AJB-24-3 ; CERN-TH-2024-218 ; arXiv:2412.14254. - 63.
Fulltext

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2024-12-21
04:20
Towards a differential $\mathrm{t\bar{t}W}$ cross section measurement at CMS / Marckx, David (Gent U. ; Rochester U.)
Top quark pair production in association with a W boson is a rare standard model process that has proven to be an intriguing puzzle for theorists and experimentalists alike. [...]
arXiv:2412.14303. -
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2024-12-21
04:16
NNLO fits of top-quark mass using total, single-differential and double-differential $t\bar{t}+X$ cross-section data / Alekhin, S. ; Garzelli, M.V. ; Mazzitelli, J. ; Moch, S.-O. ; Zenaiev, O.
We describe the fits of the top-quark mass value at NNLO using as input the double-differential distributions in rapidity and invariant mass of $t\bar{t}$ pairs obtained by the ATLAS and CMS collaborations from unfolding of their experimental data to the parton level, compared to NNLO theory predictions. [...]
CERN-TH-2024-220 ; arXiv:2412.14348. -
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