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EP Preprints

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2023-09-19
11:45
Measurement of CP violation in $B^0\to \psi(\to\ell^+\ell^-)K^0_\mathrm{S}(\to \pi^+\pi^-)decays$ / LHCb Collaboration
A measurement of time-dependent $C\!P$ violation in the decays of $B^0$ and $\overline{B}^0$ mesons to the final states ${J\!/\!\psi(\to\mu^+\mu^-)K^0_\mathrm{S}}$, $\psi(2S)(\to\mu^+\mu^-)K^0_\mathrm{S}$ and $J\!/\!\psi(\to e^+e^-)K^0_\mathrm{S}$ with $K^0_\mathrm{S}\pi^+\pi^-$ is presented. [...]
arXiv:2309.09728 ; LHCb-PAPER-2023-013 ; CERN-EP-2023-177 ; LHCB-PAPER-2023-013. - 2023.
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2023-09-14
13:55
Measurement of the CKM angle $\gamma$ in the $B^0 \to DK^{*0}$ channel using self-conjugate $D \to K_S^0 h^+h^-$ decays / LHCb Collaboration
A model-independent study of CP violation in $B^0 \to DK^{*0}$ decays is presented using data corresponding to an integrated luminosity of 9fb$^{-1}$ collected by the LHCb experiment at centre-of-mass energies of $\sqrt{s}=7, \, 8$ and $13$ TeV. [...]
arXiv:2309.05514 ; LHCb-PAPER-2023-009 ; CERN-EP-2023-138. - 2023.
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2023-08-17
10:01
Observation of Cabibbo-suppressed two-body hadronic decays and precision mass measurement of the $\Omega_c^0$ baryon / LHCb Collaboration
The first observation of the singly Cabibbo-suppressed $\Omega_{c}^{0}\to\Omega^{-}K^{+}$ and $\Omega_{c}^{0}\to\Xi^{-}\pi^{+}$ decays is reported, using proton-proton collision data at a centre-of-mass energy of $13\,{\rm TeV}$, corresponding to an integrated luminosity of $5.4\,{\rm fb}^{-1}$, collected with the LHCb detector between 2016 and 2018. [...]
arXiv:2308.08512 ; LHCb-PAPER-2023-011 ; CERN-EP-2023-155. - 2023. - 18 p.
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2023-08-14
16:27
A search for rare $B \to D \mu^+\mu^-$ decays / LHCb Collaboration
A search for rare $B \rightarrow D \mu^+ \mu^-$ decays is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb$^{-1}$. [...]
arXiv:2308.06162 ; LHCb-PAPER-2022-048 ; CERN-EP-2023-121 ; LHCB-PAPER-2022-048. - 2023. - 23 p.
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2023-08-04
11:20
Observation of the decays $B^{0}_{(s)}\rightarrow D_{s1}(2536)^{\mp}K^{\pm}$ / LHCb Collaboration
This paper reports the observation of the decays $B_{(s)}^{0}\to D_{s1}(2536)^{\mp}K^{\pm}$ using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of $9\,\mathrm{fb}^{-1}$. [...]
arXiv:2308.00587 ; LHCb-PAPER-2023-014 ; CERN-EP-2023-140 ; LHCB-PAPER-2023-014. - 2023. - 26 p.
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2023-08-04
09:48
Improved measurement of $CP$ violation parameters in $B_s^0\to J/\psi K^+K^-$ decays in the vicinity of the $\phi(1020)$ resonance / LHCb Collaboration
The decay-time-dependent $CP$ asymmetry in $B_s^0\to J/\psi(\to \mu^+\mu^-) K^+ K^-$ decays is measured using proton-proton collision data, corresponding to an integrated luminosity of $6 {\rm fb}^{-1}$, collected with the LHCb detector at a center-of-mass energy of 13 TeV. [...]
arXiv:2308.01468 ; LHCb-PAPER-2023-016 ; CERN-EP-2023-145. - 2023. - 20 p.
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2023-07-28
13:52
Observation of new baryons in the $\Xi_b^- \pi^+\pi^-$ and $\Xi_b^0 \pi^+\pi^-$ systems / LHCb Collaboration
The first observation and study of two new baryonic structures in the final state $\Xi_b^0\pi^+\pi^-$ and the confirmation of the $\Xi_b(6100)^-$ state in the $\Xi_b^-\pi^+\pi^-$ decay mode are reported using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 $\mathrm{fb}^{-1}$. [...]
arXiv:2307.13399 ; LHCb-PAPER-2023-008 ; CERN-EP-2023-126. - 2023. - 21 p.
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2023-07-09
09:07
SAMPIC Calibration Procedute / Gkougkousis, Vagelis (Imperial College (GB)) ; Kapelios, Alexandros (CERN)
This document provides instructions for voltage and time domain ADC calibration of the 32 channel Sampic desktop device using the included Labwindows software..
CERN-OPEN-2023-015. - 2022. - 6 p.
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2023-06-21
16:56
Measurement of $CP$ asymmetries and branching fractions of $B^{-}$ decays to two charm mesons / LHCb Collaboration
The $CP$ asymmetries of seven $B^-$ decays to two charm mesons are measured using data corresponding to an integrated luminosity of $9\text{fb}^{-1}$ of proton-proton collisions collected by the LHCb experiment. [...]
arXiv:2306.09945 ; LHCb-PAPER-2023-007 ; CERN-EP-2023-104 ; LHCB-PAPER-2023-007. - 2023. - 29 p.
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2023-06-07
08:44
Evidence for the decays $B^{0}\rightarrow\bar{D}^{(*)0}\phi$ and updated measurements of the branching fractions of the $B^{0}_{s}\rightarrow\bar{D}^{(*)0}\phi$ decays / LHCb Collaboration
Evidence for the decays $B^{0}\rightarrow\bar{D}^{0}\phi$ and $B^{0} \rightarrow \bar{D}^{*0}\phi$ is reported with a significance of 3.6$\,\sigma$ and 4.3$\,\sigma$, respectively [...]
arXiv:2306.02768 ; LHCb-PAPER-2023-003,CERN-EP-2023-077 ; CERN-EP-2023-077 ; LHCB-PAPER-2023-003 ; LHCB-PAPER-2023-003. - 2023. - 26 p.
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