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LHCb Papers

Últimas adquisiciones:
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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2023-08-14
13:46
$\Lambda_c^+$ polarimetry using the dominant hadronic mode / LHCb Collaboration
The polarimeter vector field for multibody decays of a spin-half baryon is introduced as a generalisation of the baryon asymmetry parameters. Using a recent amplitude analysis of the $\Lambda_c^+ \to p K^- \pi^+$ decay performed at the LHCb experiment, we compute the distribution of the kinematic-dependent polarimeter vector for this process in the space of Mandelstam variables to express the polarised decay rate in a model-agnostic form. [...]
arXiv:2301.07010; LHCb-PAPER-2022-044; CERN-EP-2022-287.- Geneva : CERN, 2023-07-31 - 20 p. - Published in : JHEP 2307 (2023) 228 Fulltext: document - PDF; 2301.07010 - PDF; Related data file(s): ZIP;

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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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2023-06-23
10:35
Search for $CP$ violation in the phase space of $D^0 \to \pi^-\pi^+\pi^0$ decays with the energy test / LHCb Collaboration
A search for $CP$ violation in $D^0 \to \pi^-\pi^+\pi^0$ decays is reported, using $pp$ collision data collected by the LHCb experiment from 2015 to 2018 corresponding to an integrated luminosity of 6$fb^{-1}$. An unbinned model-independent approach provides sensitivity to local $CP$ violation within the two-dimensional phase space of the decay. [...]
arXiv:2306.12746; CERN-EP-2023-103; LHCb-PAPER-2023-005.- Geneva : CERN, 2023-09-20 - 24 p. - Published in : JHEP 2309 (2023) 129 Fulltext: document - PDF; 2306.12746 - PDF; D2pipipi0_ET_paper_arXiv - PDF; Related data file(s): ZIP;

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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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