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EP Preprints

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2017-03-20
12:28
Measurement of the $B^0_s\to\mu^+\mu^-$ branching fraction and effective lifetime and search for $B^0\to\mu^+\mu^-$ decays / LHCb Collaboration
A search for the rare decays $B^0_s\to\mu^+\mu^-$ and $B^0\to\mu^+\mu^-$ is performed at the LHCb experiment using data collected in $pp$ collisions corresponding to a total integrated luminosity of 4.4 fb$^{-1}$. [...]
CERN-EP-2017-041 ; LHCB-PAPER-2017-001 ; arXiv:1703.05747.
- 2017. - 19 p.
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2017-03-09
08:59
Search for the decays $B_s^0\to\tau^+\tau^-$ and $B^0\to\tau^+\tau^-$ / LHCb Collaboration
A search for the rare decays $B_s^0\to\tau^+\tau^-$ and $B^0\to\tau^+\tau^-$ is performed using proton$-$proton collision data collected with the LHCb detector. [...]
CERN-EP-2017-034 ; LHCB-PAPER-2017-003 ; arXiv:1703.02508.
- 2017. - 21 p.
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2017-03-01
14:47
Observation of the decay $\Lambda^0_b \to p K^- \mu^+ \mu^-$ and a search for $C\!P$ violation / LHCb Collaboration
A search for $C\!P$ violation in the decay $\Lambda^0_b \to p K^- \mu^+ \mu^-$ is presented. [...]
LHCB-PAPER-2016-059 ; CERN-EP-2017-032 ; arXiv:1703.00256.
- 2017. - 19 p.
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2017-02-23
10:55
Measurement of the $C\!P$ violation parameter $A_\Gamma$ in $D^0 \to K^+K^-$ and $D^0 \to \pi^+\pi^-$ decays / LHCb Collaboration
Asymmetries in the time-dependent rates of $D^0 \to K^+ K^-$ and $D^0 \to \pi^+ \pi^-$ decays are measured in a $pp$ collision data sample collected with the LHCb detector during LHC Run 1, corresponding to an integrated luminosity of $3\,\mathrm{fb}^{-1}$. [...]
LHCB-PAPER-2016-063 ; CERN-EP-2017-028 ; arXiv:1702.06490.
- 2017. - 16 p.
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2017-01-31
07:18
Observation of the suppressed decay $\Lambda^{0}_{b}\rightarrow p\pi^{-}\mu^{+}\mu^{-}$ / LHCb Collaboration
The suppressed decay $\Lambda^{0}_{b}\rightarrow p\pi^{-}\mu^{+}\mu^{-}$, excluding the $J/\psi$ and $\psi(2S)\rightarrow \mu^{+}\mu^{-}$ resonances, is observed for the first time with a significance of 5.5 standard deviations. [...]
LHCB-PAPER-2016-049 ; CERN-EP-2016-312 ; arXiv:1701.08705.
- 2017. - 16 p.
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2017-01-27
16:36
Study of the $D^0 p$ amplitude in $\Lambda_b^0\to D^0 p \pi^-$ decays / LHCb Collaboration
An amplitude analysis of the decay $\Lambda_b^0\to D^0 p \pi^-$ is performed in the part of the phase space containing resonances in the $D^0 p$ channel. [...]
CERN-EP-2017-007 ; arXiv:1701.07873 ; LHCB-PAPER-2016-061.
- 2017. - 41 p.
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2017-01-21
07:23
Measurement of the $B^{\pm}$ production asymmetry and the $CP$ asymmetry in $B^{\pm} \to J/\psi K^{\pm}$ decays / LHCb Collaboration
The $B^{\pm}$ meson production asymmetry in $pp$ collisions is measured using $B^+ \to \bar{D}^0 \pi^+$ decays [...]
arXiv:1701.05501 ; CERN-EP-2016-325 ; LHCB-PAPER-2016-054.
- 2017. - 19 p.
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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 ; arXiv:1701.05274 ; LHCB-PAPER-2016-053.
- 2017. - 17 p.
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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 ; arXiv:1701.05116 ; LHCB-PAPER-2016-064.
- 2017. - 23 p.
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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 ; arXiv:1701.01871 ; LHCB-PAPER-2016-041.
- 2017. - 20 p.
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