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LHCb Preprints

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2025-11-10
16:43
Simultaneous determination of the CKM angle $\gamma$ and parameters related to mixing and $CP$ violation in the charm sector /LHCb Collaboration
A combination of measurements sensitive to the $C\!P$-violation angle $\gamma$ of the Cabibbo-Kobayashi-Maskawa unitarity triangle, to the charm mixing parameters that describe oscillations between $D^0$ and $\overline{D^0}$ mesons, and to the $C\!P$ asymmetries in the $D^0\to K^+ K^-$ and $D^0 \to \pi^+\pi^-$ decays is performed. All relevant beauty and charm results obtained with the data collected during the first two runs of the LHCb experiment at CERN's Large Hadron Collider are included, with three new inputs compared to the combination presented in 2024. [...]
LHCb-CONF-2025-003; CERN-LHCb-CONF-2025-003.- Geneva : CERN, 2025 - 22.
In : Implications of the LHCb measurements and future prospects, Cern, Geneva, Ch, 4 - 7 Nov 2025

Notice détaillée
2025-11-10
15:33
Search for $K^0_{\rm S(L)}\to\pi^+\pi^-\mu^+ \mu^-$ decays at LHCb
A search for $K^0_{\mathrm{S(L)}} \to \pi^+ \pi^- \mu^+ \mu^-$ decays is performed using proton--proton collision data collected by the LHCb experiment at a centre-of-mass energy of $13\,\mathrm{TeV}$, corresponding to an integrated luminosity of $5.4\,\mathrm{fb}^{-1}$. [...]
CERN-EP-2025-227 ; arXiv:2511.02619 ; LHCB-PAPER-2025-045. - 2025
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2025-11-06
04:13
Search for $K_{\mathrm{S(L)}}^{0} \rightarrow \pi^{+} \pi^{-} \mu^{+} \mu^{-}$ decays at LHCb / LHCb Collaboration
A search for $K_{\mathrm{S(L)}}^{0} \rightarrow π^{+}π^{-}μ^{+}μ^{-}$ decays is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of $13\,\mathrm{TeV}$, corresponding to an integrated luminosity of $5.4\,\mathrm{fb^{-1}}$. [...]
arXiv:2511.02619 ; CERN-EP-2025-227,LHCb-PAPER-2025-045 ; CERN-EP-2025-227 ; LHCb-PAPER-2025-045. - 21.
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2025-10-20
12:38
Measurements of the W mass at ATLAS, CMS and LHCb / Tenchini, Francesco (INFN, Pisa ; Pisa U.) /ATLAS, CMS and LHCB Collaborations
In the standard model of particle physics, the masses of the Z and W boson are closely related. While the former has been precisely measured, the latter value is known much less precisely. [...]
CMS-CR-2025-171.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;
In : 13th Edition of the Large Hadron Collider Physics Conference (LHCP2025), Taipei, Tw, 5 - 9 May 2025

Notice détaillée
2025-10-18
04:03
Measurement of $C\!P$ asymmetry in $D^0 \to K^0_{S} K^0_{S}$ decays with the LHCb Upgrade I detector / LHCb Collaboration
A measurement of $C\!P$ asymmetry in $D^0 \to K^0_{\rm S} K^0_{\rm S}$ decays is reported, based on a data sample of proton-proton collisions collected with the LHCb Upgrade I detector in 2024 at a centre-of-mass energy of $13.6\,$TeV, corresponding to an integrated luminosity of $6.2\,\mathrm{fb}^{-1}$. [...]
arXiv:2510.14732 ; LHCb-PAPER-2025-036 ; CERN-EP-2025-221. - 26.
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2025-10-16
08:51
Searches for $B^0\to K^+\pi^-\tau^+\tau^-$ and $B_s^0\to K^+K^-\tau^+\tau^-$ decays / LHCb Collaboration
The first searches for $B^0\to K^+\pi^-\tau^+\tau^-$ and $B^0_s\to K^+K^-\tau^+\tau^-$ decays at the LHCb experiment are conducted with $pp$ collision data corresponding to an integrated luminosity of $5.4\textrm{ fb}^{-1}$. [...]
arXiv:2510.13716 ; LHCb-PAPER-2025-048 ; CERN-EP-2025-224 ; LHCB-PAPER-2025-048. - 2025 - 23.
Fulltext - Related data file(s) - Full text - Fulltext

Notice détaillée
2025-10-08
04:12
Study of charm mixing and CP violation with $D^0\to K^\pmπ^\mpπ^\pmπ^\mp$ decays / LHCb Collaboration
A study of charm mixing and CP violation in $D^0\to K^\pmπ^\mpπ^\pmπ^\mp$ decays is performed using data collected by the LHCb experiment in proton-proton collisions from 2015 to 2018, corresponding to an integrated luminosity of 6$\text{fb}^{-1}$. [...]
arXiv:2510.04963 ; CERN-EP-2025-220 ; LHCb-PAPER-2025-029. - 42.
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2025-09-23
13:21
Measurement of the $W \to \mu\nu$ cross-sections as a function of the muon transverse momentum in $pp$ collisions at 5.02 TeV / LHCb Collaboration
The $pp \to W^{\pm} (\to \mu^{\pm} \nu_{\mu}) X$ cross-sections are measured at a proton-proton centre-of-mass energy $\sqrt{s} = 5.02$ TeV using a dataset corresponding to an integrated luminosity of 100 pb$^{-1}$ recorded by the LHCb experiment. [...]
arXiv:2509.18817 ; LHCb-PAPER-2025-031 ; CERN-EP-2025-197 ; LHCB-PAPER-2025-031. - 2025 - 37.
Fulltext - Related data file(s) - Fulltext

Notice détaillée
2025-09-23
04:38
Observation of $B_c^+ \to D h^+ h^-$ decays / LHCb Collaboration
Searches are presented for $B_{c}^{+} \to D h^+ h^-$ decays, where $D$ is a charmed meson and $h^{\pm}$ is a charged pion or kaon, using $pp$ collision data collected by the LHCb experiment corresponding to an integrated luminosity of $9~\text{fb}^{-1}$. [...]
arXiv:2509.15873 ; LHCb-PAPER-2025-028 ; CERN-EP-2025-177. - 20.
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2025-09-22
16:01
First evidence of CP violation in beauty baryon to charmonium decays / LHCb Collaboration
A study of the difference in the $CP$ asymmetries between ${\Lambda}^0_b \rightarrow J / \psi p \pi^-$ and ${\Lambda}^0_b \rightarrow J / \psi p K^-$ decays, $\Delta {\cal A}_{CP}$, is performed using proton-proton collision data collected by the LHCb experiment in the years 2015-2018, corresponding to an integrated luminosity of $6\,{\rm fb}^{-1}$. [...]
arXiv:2509.16103 ; LHCb-PAPER-2025-021 ; CERN-EP-2025-184 ; LHCB-PAPER-2025-021. - 2025 - 24.
Fulltext - Related data file(s) - Fulltext

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