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LHCb Papers

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2025-12-12
14:10
Measurement of the top-quark production cross-section and charge asymmetry at LHCb
The first measurements of the top- and antitop-quark differential production cross-sections and the top-quark charge asymmetry in the forward region are presented, using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.4 $fb^{-1}$. [...]
CERN-EP-2025-274 ; arXiv:2512.11324 ; LHCB-PAPER-2025-057. - 2025
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2025-12-11
13:40
Precision measurement of CP violation and branching fractions in $B^{\pm} \to K^0_{\mathrm{S}} h^{\pm}$ $(h = \pi, K)$ decays and search for the rare decay $B_c^{\pm} \to K ^0_{\mathrm{S}} K^{\pm}$ / LHCb Collaboration
An analysis of the decays $B^{\pm} \to K^0_{\mathrm{S}} \pi^{\pm}$ and $B^{\pm} \to K^0_{\mathrm{S}} K^{\pm}$ is performed using proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of $13 TeV$, corresponding to an integrated luminosity of 5.4fb$^{-1}$. [...]
arXiv:2512.09288 ; CERN-EP-2025-261 ; LHCb-PAPER-2025-049 ; LHCB-PAPER-2025-049. - 2025 - 23.
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2025-12-05
14:06
Measurement of the branching fractions and longitudinal polarisations of $B^0_{(s)} \to K^{*0} \kern 0.18em \overline{\kern -0.18em K}{}^{*0}$ decays / LHCb Collaboration
A time- and flavour-integrated amplitude analysis of $B^0$ and $B^0_s$ decays to the $(K^+\pi^-)(K^-\pi^+)$ final state in the $K^*(892)^0 \kern 0.18em \overline{\kern -0.18em K}{}^{*}(892)^0$ region is presented, using $pp$ collision data recorded with the LHCb detector in 2011--2018, corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$. [...]
arXiv:2512.05102 ; LHCb-PAPER-2025-046 ; CERN-EP-2025-265 ; LHCB-PAPER-2025-046. - 2025 - 46.
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2025-12-01
14:31
Observation of the rare baryonic decay $B^{+} \rightarrow p \bar{\Lambda}$ and measurement of its weak decay parameter / LHCb Collaboration
The first observation of the decay $B^{+} \rightarrow p \bar{\Lambda}$ is presented, using proton-proton collision data collected by the LHCb experiment between 2016 and 2018 at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of $5.4fb{-1}$. [...]
arXiv:2512.00328 ; LHCb-PAPER-2025-044 ; CERN-EP-2025-263 ; LHCB-PAPER-2025-044. - 2025 - 24.
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2025-11-25
17:25
Observation and investigation of the $T_{c\bar{c}1}(4430)^{+}$ structure in $B^{+} \to \psi(2S) K_{\text{S}}^{0} \pi^{+}$ decays / LHCb Collaboration
The first four-dimensional amplitude analysis of the $B^{+} \to \psi(2S) K_{\text{S}}^{0} \pi^{+}$ decay is performed with proton-proton collision data collected by the LHCb experiment at $\sqrt{s} = 13~\mathrm{TeV}$, corresponding to an integrated luminosity of $5.4~\mathrm{fb^{-1}}$. [...]
arXiv:2511.20428 ; LHCb-PAPER-2025-039 ; CERN-EP-2025-234 ; LHCB-PAPER-2025-039. - 16.
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2025-11-24
15:07
Differential decay rate of $B^+ \to J/\psi(\to \mu^+\mu^-) K^+$ with the LHCb Upgrade I experiment
The normalised decay rate of $B^+ \to J/\psi(\to \mu^+\mu^-) K^+$ is measured as a function of the lepton helicity angle using a data sample corresponding to an integrated luminosity of $1.1 \text{fb}^{-1}$ collected during October 2024 with the upgraded (Upgrade I) LHCb detector [...]
CERN-EP-2025-245 ; arXiv:2511.16564 ; LHCB-PAPER-2025-040. - 2025 - 30.
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2025-11-20
13:59
Branching fraction measurement of the $\Lambda \rightarrow p \mu^- \overline{\nu}_{\mu}$ decay. / LHCb Collaboration
A measurement of the branching fraction for the decay $\Lambda \to p \mu^- \overline{\nu}_{\mu}$ is presented using $\textit{pp}$ collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV. [...]
arXiv:2511.15681 ; LHCb-PAPER-2025-030 ; CERN-EP-2025-223 ; LHCB-PAPER-2025-030. - 2025 - 27.
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2025-11-14
14:34
Measurement of charged-hadron distributions in heavy-flavor jets in proton-proton collisions at $\sqrt{s}$ = 13 TeV / LHCb Collaboration
Charged-hadron distributions in heavy-flavor jets are measured in proton-proton collisions at a center-of-mass energy of $\sqrt{s}$ = 13 TeV collected by the LHCb experiment. [...]
arXiv:2511.10216 ; LHCb-PAPER-2025-038 ; CERN-EP-2025-230 ; LHCB-PAPER-2025-038. - 2025 - 40.
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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 - 21.
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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.
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