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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
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- 2024
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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
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CMS AuthorList
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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
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Fermilab Library Server
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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
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Fermilab Library Server
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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
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2024-12-21
04:26
Discriminating between Pseudoscalar Higgs and Toponium States at the LHC and Beyond
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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
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- 14.
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2024-12-21
04:24
On Determining $\alpha_s(m_Z)$ from Dijets in $e^+e^-$ Thrust
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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
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arXiv:2412.15164
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- 66.
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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
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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
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CERN-TH-2024-218
;
arXiv:2412.14254
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- 63.
Fulltext
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2024-12-21
04:20
Towards a differential $\mathrm{t\bar{t}W}$ cross section measurement at CMS
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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
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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
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arXiv:2412.14348
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