# EP Preprints

2017-04-27
14:36
 Observation of charmless baryonic decays $B^0_{(s)} \to p \overline{p} h^+ h^{\prime-}$ Decays of $B^0$ and $B_{s}^0$ mesons to the charmless baryonic final states $p \overline{p} h^+ h^{\prime-}$, where $h$ and $h^\prime$ each denote a kaon or a pion, are searched for using the LHCb detector. [...] CERN-EP-2017-052 ; LHCB-PAPER-2017-005. - 2017. Fulltext - Previous draft version - Related data file(s)

2017-04-26
10:11
 Observation of the decays $\Lambda_b^0 \to \chi_{c1} p K^-$ and $\Lambda_b^0 \to \chi_{c2} p K^-$ The first observation of the decays $\Lambda_b^0 \to \chi_{c1} p K^-$ and $\Lambda_b^0 \to \chi_{c2} p K^-$ is reported using a data sample corresponding to an integrated luminosity of $3.0$ fb$^{-1}$, collected by the LHCb experiment in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV. [...] CERN-EP-2017-073 ; LHCB-PAPER-2017-011. - 2017. Fulltext - Previous draft version - Related data file(s)

2017-04-26
07:45
 Observation of the $B^+ \to D^{*-}K^+\pi^+$ decay / LHCb Collaboration The $B^+ \to D^{*-}K^+\pi^+$ decay potentially provides an excellent way to investigate charm meson spectroscopy. [...] arXiv:1704.07581 ; CERN-EP-2017-064 ; LHCB-PAPER-2017-006. - 2017. - 9 p. Related data file(s) - Full text

2017-04-05
12:25
 Measurement of $\pi^{-}p$ elastic scattering in the Coulomb interference region at 100 GeV/c and 140 GeVc : preliminary results / Burq, J P ; Chemarin, M ; Chevallier, M ; Denisov, A S ; Ekelöf, T J C ; Grafström, P ; Hagberg, E ; Ille, B ; Kashchuk, A P ; Korolev, G A et al. 1980. - 4 p. Full text

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. Full text - Related data file(s) - Related supplementary data file(s)

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. Fulltext - Related data file(s) - Full text - Related supplementary data file(s)

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. Fulltext - Related data file(s) - Full text - Related supplementary data file(s)

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. Fulltext - Related data file(s) - Preprint - Related supplementary data file(s)

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. Full text - Related data file(s)

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. Fulltext - Related data file(s) - Full text