CERN Accelerating science

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1.
Identification of low-momentum muons in the CMS detector using multivariate techniques in proton-proton collisions at $ \sqrt{s} = $ 13.6 TeV / CMS Collaboration
``Soft'' muons with a transverse momentum below 10 GeV are featured in many processes studied by the CMS experiment, such as decays of heavy-flavor hadrons or rare tau lepton decays. [...]
CMS-MUO-24-001 ; CERN-EP-2024-325 ; arXiv:2412.17590 ; CMS-MUO-24-001-003.
- 2024
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext
2.
Determination of the strong coupling and its running from measurements of inclusive jet production / CMS Collaboration
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. [...]
CMS-SMP-24-007 ; CERN-EP-2024-327 ; arXiv:2412.16665 ; CMS-SMP-24-007-003.
- 2024
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext
3.
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 / CMS Collaboration
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. [...]
CMS-SMP-24-009 ; CERN-EP-2024-314 ; arXiv:2412.16296 ; CMS-SMP-24-009-003.
- 2024
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext
4.
Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = $ 5.02 TeV / CMS Collaboration
Measurements of light-by-light scattering (LbL, $ \gamma\gamma\to\gamma\gamma $) and the Breit-Wheeler process (BW, $ \gamma\gamma\to\mathrm{e}^+\mathrm{e}^- $) are reported in ultraperipheral PbPb collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV. [...]
CMS-HIN-21-015 ; CERN-EP-2024-284 ; arXiv:2412.15413 ; CMS-HIN-21-015-003.
- 2024
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext
5.
Measurement of CP asymmetry in $B^0_s \to D^{\mp}_s K^{\pm}$ decays / LHCb Collaboration
A measurement of the CP-violating parameters in BsDsK decays is reported, based on the analysis of proton-proton collision data corresponding to an integrated luminosity of $6\,\mathrm{fb}^{-1}$ at a centre-of-mass energy of $13 \,\mathrm{TeV}$. [...]
arXiv:2412.14074 ; LHCb-PAPER-2024-020 ; CERN-EP-2024-219.
- 34.
Fulltext
6.
Measurement of $C\!P$ asymmetries in $\Lambda_b^0\to ph^-$ decays / LHCb Collaboration
A search for $CP$ violation in $\Lambda_b^0\rightarrow pK^-$ and $\Lambda_b^0\rightarrow p\pi^-$ decays is presented using the full Run 1 and Run 2 data samples of $pp$ collisions collected with the LHCb detector, corresponding to an integrated luminosity of 9 $\mathrm{fb}^{-1}$ at center-of-mass energies of 7, 8, and 13 TeV. [...]
arXiv:2412.13958 ; LHCb-PAPER-2024-048 ; CERN-EP-2024-330 ; LHCB-PAPER-2024-048.
- 2024 - 24.
Fulltext - Supplementary information - Related data file(s) - Fulltext
7.
High-precision measurement of the W boson mass with the CMS experiment at the LHC / CMS Collaboration
In the standard model of particle physics, the masses of the carriers of the weak interaction, the W and Z bosons, are uniquely related. [...]
arXiv:2412.13872 ; CMS-SMP-23-002 ; CERN-EP-2024-308 ; CMS-SMP-23-002-003.
- 2024 - 73.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext
8.
Test of lepton flavour universality with $B^+ \to K^+\pi^+\pi^-\ell^+\ell^-$ decays / LHCb Collaboration
The first test of lepton flavour universality between muons and electrons using $B^+ \to K^+\pi^+\pi^-\ell^+\ell^-$ ($\ell=e,\mu$) decays is presented. [...]
arXiv:2412.11645 ; LHCb-PAPER-2024-046 ; CERN-EP-2024-312 ; LHCB-PAPER-2024-046.
- 2024 - 20.
Fulltext - Supplementary information - Related data file(s) - Fulltext
9.
Search for $D^0$ meson decays to $\pi^+ \pi^- e^+ e^-$ and $K^+ K^- e^+ e^-$ final states / LHCb Collaboration
A search for $D^0$ meson decays to the $\pi^+\pi^-e^+e^-$ and $K^+K^-e^+e^-$ final states is reported using a sample of proton-proton collisions collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb$^{-1}$. [...]
arXiv:2412.09414 ; LHCb-PAPER-2024-047 ; CERN-EP-2024-307 ; LHCB-PAPER-2024-047.
- 2024 - 21.
Related data file(s) - Fulltext - Supplementary information - Full text
10.
An integrated flux-symmetric spectrometer-magnet system for the SND@LHC experiment upgrade / SND@LHC Collaboration
The proposed upgrade of the SND@LHC experiment for the High Luminosity phase of the LHC (HL-LHC) will strongly benefit from the presence of a magnetized region, allowing for muon momentum and chargemeasurement. In this paper we describe an iron core magnet system that is partly integrated with the calorimeter and that is designed to respect the strict constraints from the available space in the experimental cavern, power consumption, and field requirements.Semi-analytical tools are introduced to explore the parameter space, in order to define the primary design options. [...]
2024 - 26 p. - Published in : JINST 19 (2024) P12002 Fulltext: PDF;

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