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EP Preprints

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2017-01-20
12:05
Measurement of the $B^{\pm}$ production asymmetry and the $CP$ asymmetry in $B^{\pm} \to J/\psi K^{\pm}$ decays
The $B^{\pm}$ meson production asymmetry in $pp$ collisions is measured using $B^+ \to \overline{D}{^0} \pi^+$ decays [...]
CERN-EP-2016-325 ; LHCB-PAPER-2016-054.
- 2017.
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2017-01-19
14:39
Observation of the $\varXi_{b}^{-}\to J/\psi\varLambda K^{-}$ decay / LHCb Collaboration
The observation of the decay $\varXi_{b}^{-}\to J/\psi\varLambda K^{-}$ is reported, using a data sample corresponding to an integrated luminosity of $3~\mathrm{fb}^{-1}$, collected by the LHCb detector in $pp$ collisions at centre-of-mass energies of $7$ and $8~\mathrm{TeV}$ [...]
CERN-EP-2016-318 ; LHCB-PAPER-2016-053.
- 2017.
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2017-01-19
09:34
Study of $J/\psi$ production in jets / LHCb Collaboration
The production of $J/\psi$ mesons in jets is studied in the forward region of proton-proton collisions using data collected with the LHCb detector at a center-of-mass energy of 13 TeV. [...]
CERN-EP-2017-006 ; LHCB-PAPER-2016-064.
- 2017.
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2017-01-09
11:46
Measurement of $CP$ asymmetries in $D^{\pm}\rightarrow \eta^{\prime} \pi^{\pm}$ and $D_s^{\pm}\rightarrow \eta^{\prime} \pi^{\pm}$ decays / LHCb Collaboration
A search for $CP$ violation in $D^{\pm}\rightarrow \eta^{\prime} \pi^{\pm}$ and $D^{\pm}_{s}\rightarrow \eta^{\prime} \pi^{\pm}$ decays is performed using proton-proton collision data, corresponding to an integrated luminosity of $3$ fb$^{-1}$, recorded by the LHCb experiment at centre-of-mass energies of $7$ and $8$ TeV [...]
CERN-EP-2016-315 ; LHCB-PAPER-2016-041.
- 2017.
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2017-01-09
11:13
Observation of $B_{c}^{+} \rightarrow D^{0} K^{+}$ decays / LHCb Collaboration
Using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb$^{-1}$, recorded by the LHCb detector at centre-of-mass energies of 7 and 8 TeV, the $B_{c}^{+} \rightarrow D^{0} K^{+}$ decay is observed with a statistical significance of 5.1 standard deviations. [...]
CERN-EP-2016-314 ; LHCB-PAPER-2016-058.
- 2017. - 15.
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2016-12-23
07:36
Measurement of the $J/\psi$ pair production cross-section in $pp$ collisions at $\sqrt{s} = 13 \,{\mathrm{TeV}}$ / LHCb Collaboration
The production cross-section of $J/\psi$ pairs is measured using a data sample of $pp$ collisions collected by the LHCb experiment at a centre-of-mass energy of $\sqrt{s} = 13 \,{\mathrm{TeV}}$, corresponding to an integrated luminosity of $279 \pm 11 \,{\mathrm{pb^{-1}}}$. [...]
arXiv:1612.07451 ; CERN-EP-2016-307 ; LHCB-PAPER-2016-057.
- 2016. - 40 p.
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2016-12-23
07:33
Measurement of the phase difference between short- and long-distance amplitudes in the $B^{+}\to K^{+}\mu^{+}\mu^{-}$ decay / LHCb Collaboration
A measurement of the phase difference between the short- and long-distance contributions to the $B^{+}\to K^{+}\mu^{+}\mu^{-}$ decay is performed by analysing the dimuon mass distribution. [...]
arXiv:1612.06764 ; LHCB-PAPER-2016-045 ; CERN-EP-2016-301.
- 2016. - 25 p.
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2016-12-16
09:33
Measurement of the $b$-quark production cross-section in 7 and 13 TeV $pp$ collisions / LHCb Collaboration
Measurements of the cross-section for producing $b$ quarks in the reaction $pp \to b\overline{b}X$ are reported in $7$ and $13 TeV$ collisions at the LHC as a function of the pseudorapidity $\eta$ in the range $2<\eta<5$ covered by the acceptance of the LHCb experiment. [...]
arXiv:1612.05140 ; LHCB-PAPER-2016-031 ; CERN-EP-2016-201.
- 2016. - 21 p.
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2016-12-07
07:18
Search for massive long-lived particles decaying semileptonically in the LHCb detector / LHCb Collaboration
A search is presented for massive long-lived particles decaying into a muon and two quarks. [...]
arXiv:1612.00945 ; LHCB-PAPER-2016-047 ; CERN-EP-2016-283.
- 2016. - 25.
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2016-12-02
12:44
Search for decays of neutral beauty mesons into four muons / LHCb collaboration
A search for the non-resonant decays $B^0_s \rightarrow \mu^{+}\mu^{-}\mu^{+}\mu^{-}$ and $B^0 \rightarrow \mu^{+}\mu^{-}\mu^{+}\mu^{-}$ is presented [...]
arXiv:1611.07704 ; LHCB-PAPER-2016-043 ; CERN-EP-2016-276.
- 2016. - 19.
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