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2024-07-19
16:36
Search for the rare $\Lambda_c^+ \to p \mu^+\mu^-$ decay
A search for the nonresonant $\Lambda_c^+ \to p \mu^+ \mu^-$ decay is performed using proton-proton collision data recorded at a centre-of-mass energy of 13 TeV by the LHCb experiment, corresponding to an integrated luminosity of 5.4 fb$^{-1}$. [...]
CERN-EP-2024-158 ; LHCB-PAPER-2024-005. - 2024.
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2024-07-18
12:20
Amplitude analysis of $B^+\to \psi(2S) K^+ \pi^+\pi^-$ decays / Aaij, Roel (Nikhef, Amsterdam) ; Abdelmotteleb, Ahmed Sameh Wagih (Warwick U.) ; Abellan Beteta, Carlos (Zurich U.) ; Abudinén, Fernando Jesus (Warwick U.) ; Ackernley, Thomas (Liverpool U.) ; Adefisoye, Ayomide Matthew (Syracuse U.) ; Adeva, Bernardo (U. Santiago de Compostela (main)) ; Adinolfi, Marco (Bristol U.) ; Adlarson, Patrik Harri ; Agapopoulou, Christina (IJCLab, Orsay) et al.
The first full amplitude analysis of $B^+ \to \psi(2S) K^+ \pi^+ \pi^-$ decays is performed using proton-proton collision data corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$ recorded with the LHCb detector. [...]
arXiv:2407.12475 ; LHCb-PAPER-2024-014 ; CERN-EP-2024-177 ; LHCB-PAPER-2024-014. - 2024.
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2024-06-26
10:55
Probing the nature of the $\chi_{c1}(3872)$ state using radiative decays / LHCb Collaboration
The radiative decays $\chi_{c1}(3872)\rightarrow \psi(2S)\gamma$ and $\chi_{c1}(3872)\rightarrow J/\psi\gamma$ are used to probe the nature of the $\chi_{c1}(3872)$ state using proton-proton collision data collected with the LHCb detector, corresponding to an integrated luminosity of 9fb$^{-1}$. [...]
arXiv:2406.17006 ; LHCb-PAPER-2024-015 ; CERN-EP-2025-157 ; LHCB-PAPER-2024-015. - 2024. - 31 p.
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2024-06-20
09:49
Precision measurement of the $\Xi_b^-$ baryon lifetime / LHCb Collaboration
A sample of $pp$ collision data, corresponding to an integrated luminosity of 5.5 fb$^{-1}$ and collected by the LHCb experiment during Run 2, is used to measure the ratio of the lifetime of the $\Xi^-_b$ baryon to that of the $\Lambda^0_b$ baryon, $r_{\tau}\equiv\tau_{\Xi^-_b}/\tau_{\Lambda^0_b}$. [...]
arXiv:2406.12111 ; LHCb-PAPER-2024-010 ; CERN-EP-2024-139 ; LHCB-PAPER-2024-010. - 2024. - 12 p.
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2024-06-10
11:50
Comprehensive analysis of local and nonlocal amplitudes in the $B^0 \to K^{*0} \mu^+\mu^-$ decay / LHCb Collaboration
A comprehensive study of the local and nonlocal amplitudes contributing to the decay $B^0\rightarrow K^{*0}(\to K^+\pi^-) \mu^+\mu^-$ is performed by analysing the phase-space distribution of the decay products. [...]
arXiv:2405.17347 ; LHCb-PAPER-2024-011 ; CERN-EP-2024-122 ; LHCB-PAPER-2024-011. - 2024. - 60 p.
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2024-06-10
11:38
Measurement of the branching fraction ratios $R(D^+)$ and $R(D^{*+})$ using muonic $\tau$ decays / LHCb Collaboration
The branching fraction ratios of $\kern 0.18em \overline{\kern -0.18em B}{}^0\to D^+\tau^-\overline{\nu}_{\tau}$ and $\kern 0.18em \overline{\kern -0.18em B}{}^0\to D^{*+}\tau^-\overline{\nu}_{\tau}$ decays are measured with respect to their muonic counterparts, using a data sample corresponding to an integrated luminosity of 2.0 fb$^{-1}$ collected by the LHCb experiment in proton-proton collisions at $\sqrt{s} = 13\,\text{TeV}$. [...]
arXiv:2406.03387 ; LHCb-PAPER-2024-007 ; CERN-EP-2024-125 ; LHCB-PAPER-2024-007. - 2024. - 22 p.
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2024-06-05
16:14
Observation of new charmonium(-like) states in $B^+ \to D^{*\pm} D^{\mp} K^+$ decays / LHCb Collaboration
A study of resonant structures in $B^{+}\rightarrow{D^{*+}D^{-}K^{+}}$ and $B^{+}\rightarrow{D^{*-}D^{+}K^{+}}$ decays is performed, using proton-proton collision data at centre-of-mass energies of $\sqrt{s}=7, 8$, and $13$TeV recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb${}^{-1}$. [...]
arXiv:2406.03156 ; LHCb-PAPER-2023-047 ; CERN-EP-2024-096 ; LHCB-PAPER-2023-047. - 2024. - 23 p.
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2024-06-03
10:41
Amplitude analysis of the radiative decay $B^0_s\to K^+K^-\gamma$ / LHCb Collaboration
A search for radiative decay of $B^0_s$ mesons to orbitally excited $K^+K^-$ states is performed using proton proton collisions recorded by the \mbox{LHCb}\xspace experiment, corresponding to an integrated luminosity of 9 fb$^{-1}$. [...]
arXiv:2406.00235 ; LHCb-PAPER-2024-002 ; CERN-EP-2024-115 ; LHCB-PAPER-2024-002. - 2024. - 39 p.
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2024-05-22
12:15
Study of $b-$hadron decays to $\Lambda_c^+h^-h^{\prime -}$ final states / LHCb Collaboration
Decays of $\Xi_{b}^{-}$ and $\Omega_{b}^{-}$ baryons to $\Lambda_{c}^{+} h^- h^{\prime -}$ final states, with $h^- h^{\prime -}$ being $\pi^{-}\pi^{-}$, $K^{-}\pi^{-}$ and $K^{-}K^{-}$ meson pairs, are searched for using data collected with the LHCb detector. [...]
arXiv:2405.12688 ; CERN-EP-2024-116 ; LHCb-PAPER-2024-013 ; LHCB-PAPER-2024-013. - 2024. - 22 p.
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2024-05-22
10:23
Search for the lepton-flavor violating decay $B_s^0\to \phi \mu^\pm \tau^\mp$ / LHCb Collaboration
A search for the lepton-flavor violating decays $B^0_s\to\phi\mu^\pm\tau^\mp$ is presented, using a sample of proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, collected with the LHCb detector and corresponding to a total integrated luminosity of $9\,\text{fb}^{-1}$. [...]
arXiv:2405.13103 ; LHCb-PAPER-2024-006 ; CERN-EP-2024-114 ; LHCB-PAPER-2024-006. - 2024. - 20 p.
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