# EP Preprints

Последно добавени:
2018-06-21
14:15
 Observation of the decay $\Lambda^0_b\rightarrow\psi(2S)p\pi^-$ The Cabibbo-suppressed decay $\Lambda^0_b\rightarrow\psi(2S)p\pi^-$ is observed for the first time using a data sample collected by the LHCb experiment in proton-proton collisions corresponding to 1.0, 2.0 and 1.9fb$^{-1}$ of integrated luminosity at centre-of-mass energies of 7, 8 and 13TeV, respectively. [...] CERN-EP-2018-156 ; arXiv:1806.08084 ; LHCB-PAPER-2018-022. - 2018. Fulltext - Related data file(s) - Supplementary information

2018-06-13
16:55
 Measurement of $Z\rightarrow\tau^+\tau^-$ production in proton-proton collisions at $\sqrt{s} = 8$ TeV / LHCb Collaboration A measurement of the $Z\rightarrow\tau^+\tau^-$ production cross-section is presented using data, corresponding to an integrated luminosity of 2 fb$^{-1}$, from $pp$ collisions at $\sqrt{s}=8$ TeV collected by the LHCb experiment. [...] CERN-EP-2018-147 ; LHCb-PAPER-2018-016 ; CERN-EP-2018-147 ; LHCB-PAPER-2018-016 ; arXiv:1806.05008 ; LHCB-PAPER-2018-016. - 2018. Related data file(s) - Fulltext - Preprint

2018-06-11
15:02
 Central exclusive production of $J/\psi$ and $\psi(2S)$ mesons in $pp$ collisions at $\sqrt{s}=13~$TeV / LHCb Collaboration Measurements are reported of the central exclusive production of $J/\psi$ and $\psi(2S)$ mesons in $pp$ collisions at a centre-of-mass energy of 13$\ \rm {TeV}$. [...] LHCB-PAPER-2018-011 ; CERN-EP-2018-152 ; arXiv:1806.04079 ; LHCB-PAPER-2018-011. - 2018. Fulltext - Related data file(s) - Full text

2018-06-08
09:33
 First measurement of the lifetime of the doubly charmed baryon $\Xi_{cc}^{++}$ / LHCb Collaboration The first measurement of the lifetime of the doubly charmed baryon $\Xi_{cc}^{++}$ is presented, with the signal reconstructed in the final state $\Lambda_c^+ K^- \pi^+ \pi^+$. [...] LHCb-PAPER-2018-019 ; CERN-EP-2018-146 ; arXiv:1806.02744 ; LHCB-PAPER-2018-019 ; CERN-EP-2018-146 ; LHCB-PAPER-2018-019. - 2018. - 17 p, 17 p. Fulltext - Related data file(s) - Supplementary information - Fulltext

2018-06-07
09:21
 Search for a dimuon resonance in the $\Upsilon$ mass region / LHCb Collaboration A search is performed for a spin-0 boson, $\phi$, produced in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, using prompt $\phi\rightarrow\mu^+\mu^-$ decays and a data sample corresponding to an integrated luminosity of approximately $3.0~{\rm fb}^{-1}$ collected with the LHCb detector. [...] LHCb-PAPER-2018-008 ; CERN-EP-2018-111 ; LHCB-PAPER-2018-008 ; CERN-EP-2018-111 ; arXiv:1805.09820 ; LHCB-PAPER-2018-008. - 2018. - 22 p, 22 p. Fulltext - Related data file(s) - Supplementary information - Fulltext

2018-06-05
15:31
 Measurement of the time-integrated $CP$ asymmetry in $D^0 \rightarrow K^0_S K^0_S$ decays / LHCb Collaboration A measurement of the time-integrated $CP$ asymmetry in $D^0\rightarrow K^0_S K^0_S$ decays is reported [...] LHCb-PAPER-2018-012 ; CERN-EP-2018-133 ; LHCB-PAPER-2018-012 ; CERN-EP-2018-133 ; arXiv:1806.01642 ; LHCB-PAPER-2018-012. - 2018. - 19 p, 19 p. Fulltext - Related data file(s) - Supplementary information - Fulltext

2018-06-05
14:38
 Measurement of the CKM angle $\gamma$ using $B^\pm\to DK^\pm$ with $D\to K_\text{S}^0\pi^+\pi^-$, $K_\text{S}^0K^+K^-$ decays / LHCb Collaboration A binned Dalitz plot analysis of $B^\pm \to D K^\pm$ decays, with $D\to K_\text{S}^0\pi^+\pi^-$ and $D\to K_\text{S}^0K^+K^-$, is used to perform a measurement of the CP-violating observables $x_{\pm}$ and $y_{\pm}$, which are sensitive to the Cabibbo-Kobayashi-Maskawa angle $\gamma$. [...] LHCb-PAPER-2018-017 ; CERN-EP-2018-135 ; arXiv:1806.01202 ; LHCB-PAPER-2018-017 ; CERN-EP-2018-135 ; LHCB-PAPER-2018-017. - 2018. - 36 p, 36 p. Fulltext - Related data file(s) - Supplementary information - Fulltext

2018-06-01
09:09
 Measurement of $D_s^{\pm}$ production asymmetry in $pp$ collisions at $\sqrt{s} =7$ and 8 TeV / LHCb Collaboration The inclusive $D_s^{\pm}$ production asymmetry is measured in $pp$ collisions collected by the LHCb experiment at centre-of-mass energies of $\sqrt{s} =7$ and 8 TeV. [...] LHCb-PAPER-2018-010 ; CERN-EP-2018-073 ; LHCB-PAPER-2018-010 ; CERN-EP-2018-073 ; arXiv:1805.09869 ; LHCB-PAPER-2018-010. - 2018. - 22 p. Fulltext - Related data file(s) - Supplementary Information - Fulltext

2018-05-28
16:05
 A low-cost electrically pulsed shower detector / Conversi, M (CERN) ; Federici, L (INFN) ; Gentile, S (INFN) ; Nardi, M (Laboratorio Gas Ionizzati del CNEN) A sampling total absorption detector characterized by an extremely low cost and providing also identification of particle tracks has been developed. [...] CERN-EP-Int-76-20 ; EP-Internal-Report-76-20. - Geneva : CERN, 1976. - 11 p. Full text

2018-05-28
14:55
 Observation of a new $\Xi_b^-$ resonance / LHCb Collaboration From samples of $pp$ collision data collected by the LHCb experiment at $\sqrt{s}=7$, $8$ and $13$ TeV corresponding to integrated luminosities of 1.0, 2.0 and 1.5 fb$^{-1}$, respectively, a peak in both the $\Lambda_b^0K^-$ and $\Xi_b^0\pi^-$ invariant mass spectra is observed. [...] LHCb-PAPER-2018-013 ; CERN-EP-2018-108 ; LHCB-PAPER-2018-013 ; CERN-EP-2018-108 ; arXiv:1805.09418 ; LHCB-PAPER-2018-013. - 2018. - 19 p. Fulltext - Related data file(s) - Supplementary information - Full text