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2019-02-15
15:26
Observation of $B^0_{(s)} \to J/\psi p \overline{p}$ decays and precision measurements of the $B^0_{(s)}$ masses
The first observation of the decays $B^0_{(s)} \to J/\psi p \overline{p}$ is reported, using proton-proton collision data corresponding to an integrated luminosity of $5.2{\text{fb}}^{-1}$, collected with the LHCb detector. [...]
CERN-EP-2019-006
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arXiv:1902.05588
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LHCB-PAPER-2018-046
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- 2019.
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2019-02-15
10:02
Measurement of $B^+$, $B^0$ and $\Lambda_b^0$ production in $p\mkern 1mu\mathrm{Pb}$ collisions at $\sqrt{s_{NN}} = 8.16 \ \rm TeV$
The production of $B^+$, $B^0$ and $\Lambda_b^0$ hadrons is studied in proton-lead collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_\mathrm{NN}}=8.16\,{\rm TeV}$ recorded with the LHCb detector at the LHC. [...]
CERN-EP-2019-010
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arXiv:1902.05599
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LHCB-PAPER-2018-048
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- 2019.
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2019-02-07
15:59
Measurement of the ratio of branching fractions of the decays $\Lambda_b^0 \!\to \psi(2S) \Lambda$ and $\Lambda_b^0 \!\to J\!/\!\psi \Lambda$
/ LHCb Collaboration
Using $pp$ collisions corresponding to 3$\,\text{fb}^{-1}$ integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8$\,\text{TeV}$, the ratio of branching fractions \begin{align*} \mathcal{B}(\Lambda_b^0 \!\to \psi(2S) \Lambda)/\mathcal{B}(\Lambda_b^0 \!\to J\!/\!\psi \Lambda)= 0.513 \pm 0.023 \,(\text{stat}) \pm 0.016 \,(\text{syst}) \pm 0.011\, (\mathcal{B}) \end{align*} is determined. [...]
arXiv:1902.02092
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LHCb-PAPER-2017-041
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CERN-EP-2019-003
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LHCB-PAPER-2017-041
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- 2019.
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2019-01-22
15:12
Measurement of the mass and production rate of $\Xi_b^-$ baryons
/ LHCb Collaboration
The first measurement of the production rate of $\Xi_b^-$ baryons in $pp$ collisions relative to that of $\Lambda_b^0$ baryons is reported, using data samples collected by the LHCb experiment, and corresponding to integrated luminosities of 1, 2 and 1.6~fb$^{-1}$ at $\sqrt{s}=7,~8$ and 13~TeV, respectively. [...]
arXiv:1901.07075
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LHCb-PAPER-2018-047
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CERN-EP-2018-348
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LHCB-PAPER-2018-047
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- 2019. - 21 p.
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2019-01-16
11:27
Model-independent observation of exotic contributions to $B^0\to J/\psi K^+\pi^-$ decays
/ LHCb Collaboration
An angular analysis of $B^0\to J/\psi K^+\pi^-$ decays is performed, using proton-proton collision data corresponding to an integrated luminosity of 3 ${\rm fb}^{-1}$ collected with the LHCb detector. [...]
arXiv:1901.05745
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LHCb-PAPER-2018-043
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CERN-EP-2018-330
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LHCB-PAPER-2018-043
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- 2019. - 24 p.
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2018-12-20
11:46
Measurement of the branching fraction and $C\!P$ asymmetry in $B^{+}\rightarrow J/\psi \rho^{+}$ decays
/ LHCb Collaboration
The branching fraction and direct $C\!P$ asymmetry of the decay $B^{+}\rightarrow J/\psi \rho^{+}$ are measured using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7 and 8 TeV, corresponding to a total integrated luminosity of 3$\mbox{fb}^{-1}$. [...]
arXiv:1812.07041
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LHCb-PAPER-2018-036
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CERN-EP-2018-298
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LHCB-PAPER-2018-036
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- 2018. - 21 p.
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2018-12-19
11:38
Search for the rare decay $B^{+} \rightarrow \mu^{+}\mu^{-}\mu^{+}\nu_{\mu}$
/ LHCb Collaboration
A search for the rare leptonic decay $B^{+} \rightarrow \mu^{+}\mu^{-}\mu^{+}\nu_{\mu}$ is performed using proton-proton collision data corresponding to an integrated luminosity of $4.7$ fb$^{-1}$ collected by the LHCb experiment. [...]
arXiv:1812.06004
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CERN-EP-2018-293
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LHCb-PAPER-2018-037
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LHCB-PAPER-2018-037
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- 2018. - 20 p.
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2018-12-19
10:18
Study of the $B^0\to \rho(770)^0 K^*(892)^0$ decay with an amplitude analysis of $B^0\to (\pi^+\pi^-) (K^+\pi^-)$ decays
/ LHCb Collaboration
An amplitude analysis of ${B^0\to (\pi^+\pi^-) (K^+\pi^-)}$ decays is performed in the two-body invariant mass regions ${300 < m(\pi^+\pi^-)<1100}$ MeV/$c^2$, accounting for the $\rho^0$, $\omega$, $f_0(500)$, $f_0(980)$ and $f_0(1370)$ resonances, and ${750 < m(K^+\pi^-)<1200}$ MeV/$c^2$, which is dominated by the $K^{*}(892)^0$ meson. [...]
arXiv:1812.07008
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LHCb-PAPER-2018-042
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CERN-EP-2018-316
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LHCB-PAPER-2018-042
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- 2018. - 28 p.
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2018-11-22
12:02
Search for $CP$ violation through an amplitude analysis of $D^0\rightarrow K^+ K^- \pi^+ \pi^-$ decays
/ LHCb Collaboration
A search for $CP$ violation in the Cabibbo-suppressed $D^0\rightarrow K^+ K^- \pi^+ \pi^-$ decay mode is performed using an amplitude analysis. [...]
arXiv:1811.08304
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LHCb-PAPER-2018-041
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CERN-EP-2018-299
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LHCB-PAPER-2018-041
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- 2018. - 33 p.
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2018-10-22
15:42
First measurement of charm production in fixed-target configuration at the LHC
/ LHCb Collaboration
The first measurement of heavy-flavour production by the LHCb experiment in its fixed-target mode is presented. [...]
arXiv:1810.07907
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LHCb-PAPER-2018-023
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CERN-EP-2018-266
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LHCB-PAPER-2018-023
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- 2018. - 21 p.
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