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CERN Document Server 找到 672 笔记录  1 - 10下一个最後  跳到记录: 检索需时 2.29 秒. 
1.
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 p, 20.
Fulltext - Supplementary information - Related data file(s) - Fulltext
2.
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.
Fulltext - Related data file(s) - Fulltext - Supplementary information
3.
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 / CMS Collaboration
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. [...]
arXiv:2411.15000 ; CMS-SMP-22-012 ; CERN-EP-2024-253 ; CMS-SMP-22-012-003.
- 2024 - 39.
Additional information for the analysis - CMS AuthorList - Fulltext - Fulltext
4.
Constraints on the photon polarisation in $b \to s \gamma$ transitions using $B_s^0\to \phi e^+ e^-$ decays / LHCb Collaboration
An angular analysis of the $B_s^0 \rightarrow \phi e^+e^-$ decay is performed using the proton-proton collision dataset collected between 2011 and 2018 by the LHCb experiment, corresponding to an integrated luminosity of $9\,{\rm fb}^{-1}$ at centre-of-mass energies of 7, 8 and $13\,{\rm TeV}$. [...]
arXiv:2411.10219 ; LHCb-PAPER-2024-030 ; CERN-EP-2024-276 ; LHCB-PAPER-2024-030.
- 2024 - 21.
Fulltext - Related data file(s) - Supplementary information - Fulltext
5.
Observation of the $K^+ \to \pi^+ \nu \bar\nu$ decay and measurement of its branching ratio / Cortina Gil, E
A measurement of the $K^+ \to \pi^+ \nu \bar\nu$ decay by the NA62 experiment at the CERN SPS is presented, using data collected in 2021 and 2022. This dataset was recorded, after modifications to the beamline and detectors, at a higher instantaneous beam intensity with respect to the 2016–2018 data taking. [...]
CERN-EP-2024-343.- Geneva : CERN, 2024 - 29. Draft (restricted): PDF; Fulltext: PDF;
6.
Test of lepton universality with $B_s^0 \rightarrow \phi \ell^+\ell^-$ decays / LHCb Collaboration
Lepton flavour universality in rare $b\rightarrow s$ transitions is tested for the first time using $B_s^0$ meson decays. [...]
arXiv:2410.13748 ; LHCb-PAPER-2024-032 ; CERN-EP-2024-255 ; LHCB-PAPER-2024-032.
- 2024 - 24.
Fulltext - Related data file(s) - Supplementary information - Fulltext
7.
Search for $B_{(s)}^{*0}\to \mu^+\mu^-$ in $B_c^+ \to \pi^+ \mu^+\mu^-$ decays / LHCb Collaboration
A search for the very rare $B^{*0}\to\mu^+\mu^-$ and $B_{s}^{*0}\to\mu^+\mu^-$ decays is conducted by analysing the $B_c^+\to \pi^+\mu^+\mu^-$ process [...]
arXiv:2409.17209 ; CERN-EP-2024-220 ; LHCb-PAPER-2024-026 ; LHCB-PAPER-2024-026.
- 2024 - 23.
Fulltext - Related data file(s) - Fulltext
8.
Analysis of $\it{\Lambda}^\mathrm{0}_b \rightarrow pK^-\mu^+\mu^-$ decays / LHCb Collaboration
The differential branching fraction and angular coefficients of ${\it{\Lambda}^\mathrm{0}_b \rightarrow pK^-\mu^+\mu^-}$ decays are measured in bins of the dimuon mass squared and dihadron mass. [...]
arXiv:2409.12629 ; CERN-EP-2024-212 ; LHCb-PAPER-2024-024.
- 2024 - 33.
Fulltext - Related data file(s) - Fulltext - Supplementary information
9.
Study of the rare decay $J\mskip -3mu/\mskip -2mu\psi \to \mu^+\mu^-\mu^+\mu^-$ / LHCb Collaboration
The rare electromagnetic $J\mskip -3mu/\mskip -2mu\psi \to \mu^+\mu^-\mu^+\mu^-$ decay is observed with a significance greatly exceeding the discovery threshold, using proton-proton collision data collected by the LHCb experiment during 2016--2018 at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of $5.4\,\text{fb}^{-1}$. The rate of this decay is measured relative to that of the $J\mskip -3mu/\mskip -2mu\psi \to \mu^+\mu^-$ mode. [...]
arXiv:2408.16646; LHCb-PAPER-2024-016; CERN-EP-2024-201; LHCB-PAPER-2024-016.- Geneva : CERN, 2024-12-10 - 26 p. - Published in : JHEP 2412 (2024) 062 Fulltext: 2408.16646 - PDF; document - PDF; Related data file(s): ZIP;
10.
A Time Dependent Angular Analysis of the Rare Decay $\bar{B}^0_s, B^0_s \to \phi(\to K^+K^-)\mu^+\mu^-$ / Smyth, Lauren Sophie (CERN)
This report presents both a time-independent and a time-dependent angular analysis study of the rare decay mode $\bar{B}^0_s, B^0_s \to \phi(\to K^+K^-)\mu^+\mu^-$. [...]
CERN-STUDENTS-Note-2024-037.
- 2024
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