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Darreres entrades:
2023-03-17
09:58
Observation of the $B^+ \rightarrow J/\psi \eta^{\prime} K^+$ decay
The $B^+ \rightarrow J/\psi \eta^{\prime} K^+$ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13TeV, corresponding to a total integrated luminosity of 9fb$^{-1}$.
[...]
arXiv:2303.09443
;
LHCb-PAPER-2022-054
;
CERN-EP-2023-022
;
LHCB-PAPER-2022-054
.
- 2023. - 17 p.
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2023-03-08
09:51
Search for $\it{CP}$ violation in $D_{(s)}^{+}\rightarrow K^{-}K^{+}K^{+}$ decays
A search for direct $\it{CP}$ violation in the Cabibbo-suppressed decay $D_{s}^{+}\rightarrow K^{-}K^{+}K^{+}$ and in the doubly Cabibbo-suppressed decay $D^{+}\rightarrow K^{-}K^{+}K^{+}$ is reported.
[...]
arXiv:2303.04062
;
LHCb-PAPER-2022-042
;
CERN-EP-2023-010
;
LHCB-PAPER-2022-042
.
- 2023. - 18 p, 18 p.
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2023-02-22
08:44
Observation of the $B^0_s\rightarrow \chi_{c1}(3872)\pi^+\pi^-$ decay
The first observation of the $B^0_s \rightarrow \left( \chi_{c1}(3872) \rightarrow J/\psi\pi^+\pi^-\right) \pi^+ \pi^-$ decay is reported using proton-proton collision data, corresponding to integrated luminosities of 1, 2 and 6fb$^{-1}$, collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13TeV, respectively.
[...]
arXiv:2302.10629
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CERN-EP-2023-015
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LHCb-PAPER-2022-049
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LHCB-PAPER-2022-049
.
- 2023. - 18 p.
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2023-02-17
17:09
Measurement of the $\Lambda_{b}^{0}\to \Lambda(1520) \mu^{+}\mu^{-}$ differential branching fraction
The branching fraction of the rare decay $\Lambda_{b}^{0}\to \Lambda(1520) \mu^{+}\mu^{-}$ is measured for the first time, in the squared dimuon mass intervals, $q^2$, excluding the $J/\psi$ and $\psi(2S)$ regions.
[...]
arXiv:2302.08262
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LHCb-PAPER-2022-050
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CERN-EP-2023-007
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LHCB-PAPER-2022-050
.
- 2023. - 16 p.
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2023-02-10
10:23
Observation of new $\Omega_c^{0}$ states decaying to the $\Xi_c^+ K^-$ final state
Two new excited states, $\Omega_c(3185)^0$ and $\Omega_c(3327)^0$, are observed in the $\Xi_c^{+}K^{-}$ invariant-mass spectrum using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of $9\,{\rm fb}^{-1}$.
[...]
arXiv:2302.04733
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CERN-EP-2023-006
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LHCb-PAPER-2022-043
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LHCB-PAPER-2022-043
.
- 2023. - 10 p.
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2023-02-07
10:43
Measurement of the ratios of branching fractions $\mathcal{R}(D^{*})$ and $\mathcal{R}(D^{0})$
The ratios of branching fractions $\mathcal{R}(D^{*})\equiv\mathcal{B}(\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}\to D^{*}\mu^{-}\bar{\nu}_{\mu})$ and $\mathcal{R}(D^{0})\equiv\mathcal{B}(B^{-}\to D^{0}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(B^{-}\to D^{0}\mu^{-}\bar{\nu}_{\mu})$ are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb${ }^{-1}$ of integrated luminosity recorded by the LHCb experiment during 2011 and 2012.
[...]
arXiv:2302.02886
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LHCb-PAPER-2022-039
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CERN-EP-2022-284
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LHCB-PAPER-2022-039
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- 2023. - 20 p.
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2023-01-26
15:26
A study of $C\!P$ violation in the decays $B^\pm\to[K^+K^-\pi^+\pi^-]_D h^{\pm}$ ($h = K, \pi$) and $B^\pm\to[\pi^+\pi^-\pi^+\pi^-]_D h^{\pm}$
The first study of $C\!P$ violation in the decay mode $B^\pm\to[K^+K^-\pi^+\pi^-]_D h^{\pm}$, with $h=K,\pi$, is presented, exploiting a data sample of proton-proton collisions collected by the LHCb experiment that corresponds to an integrated luminosity of $9$ fb$^{-1}$.
[...]
arXiv:2301.10328
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LHCb-PAPER-2022-037
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CERN-EP-2022-285
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LHCB-PAPER-2022-037
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- 2023. - 28 p.
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2023-01-12
15:46
Evidence of a $J/\psi K_{\rm S}^0$ structure in $B^0 \to J/\psi \phi K_{\rm S}^0$ decays
An amplitude analysis of $B^0 \to J/\psi \phi K_{\rm S}^0$ decays is performed using proton-proton collision data corresponding to an integrated luminosity of 9 ${\rm fb}^{-1}$, collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV.
[...]
arXiv:2301.04899
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LHCb-PAPER-2022-040
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CERN-EP-2022-258
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LHCB-PAPER-2022-040
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- 2023.
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2023-01-05
14:26
First observation and branching fraction measurement of the $\Lambda_b^0\to D_s^- p$ decay
The first observation of the $\Lambda_b^0\to D_s^- p$ decay is presented using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of ${\sqrt{s}=13 \,\textrm{TeV}}$, corresponding to a total integrated luminosity of $6\,\textrm{fb}^{-1}$.
[...]
arXiv:2212.12574
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LHCb-PAPER-2022-038
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CERN-EP-2022-272
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LHCB-PAPER-2022-038
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- 2023. - 18 p, 18 p.
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2022-12-20
10:37
Test of lepton universality in $b \rightarrow s \ell^+ \ell^-$ decays
The first simultaneous test of muon-electron universality using $B^{+}\rightarrow K^+\ell^+ \ell^−$ and $B^{0} \rightarrow K^{*0} \ell^{+} \ell^{−}$ decays is performed, in two ranges of the dilepton invariant-mass squared, $q^{2}$.
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arXiv:2212.09152
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LHCb-PAPER-2022-046
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CERN-EP-2022-277
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- 2022. - 15 p, 15 p.
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