# LHCb Papers

Najnovije dodano:
2018-09-21
11:55
 Evidence for an $\eta_c(1S) \pi^-$ resonance in $B^0 \to \eta_c(1S) K^+\pi^-$ decays / LHCb Collaboration A Dalitz plot analysis of $B^0 \to \eta_c(1S) K^+\pi^-$ decays is performed using data samples of $pp$ collisions collected with the LHCb detector at centre-of-mass energies of $\sqrt{s}=7,~8$ and $13$ TeV, corresponding to a total integrated luminosity of $4.7 \text{fb}^{-1}$. [...] arXiv:1809.07416 ; LHCb-PAPER-2018-034 ; CERN-EP-2018-245 ; LHCB-PAPER-2018-034. - 2018. Fulltext - Previous draft version - Related data file(s)

2018-08-29
04:44
 Physics case for an LHCb Upgrade II - Opportunities in flavour physics, and beyond, in the HL-LHC era / LHCb Collaboration The LHCb Upgrade II will fully exploit the flavour-physics opportunities of the HL-LHC, and study additional physics topics that take advantage of the forward acceptance of the LHCb spectrometer. [...] LHCB-PUB-2018-009 ; CERN-LHCC-2018-027 ; arXiv:1808.08865 ; LHCC-G-171. - 178 p. Fulltext

2018-08-24
11:51
 Search for lepton-flavour-violating decays of Higgs-like bosons / LHCb Collaboration A search is presented for a Higgs-like boson with mass in the range 45 to 195 GeV/$c^2$ decaying into a muon and a tau lepton. [...] arXiv:1808.07135 ; CERN-EP-2018-210 ; LHCb-PAPER-2018-030 ; LHCB-PAPER-2018-030. - 2018. - 20 p. Fulltext - Related data file(s) - Fulltext

2018-08-21
10:21
 Measurement of antiproton production in ${\rm p He}$ collisions at $\sqrt{s_{NN}}=110$ GeV / LHCb Collaboration The cross-section for prompt antiproton production in collisions of protons with an energy of $6.5$ TeV incident on helium nuclei at rest is measured with the LHCb experiment from a data set corresponding to an integrated luminosity of $0.5 ~~\rm nb^{-1}$. [...] arXiv:1808.06127 ; LHCb-PAPER-2018-031 ; CERN-EP-2018-217 ; LHCB-PAPER-2018-031. - 2018. - 22 p. Fulltext - Related data file(s) - Fulltext - Supplementary information

2018-08-03
09:58
 Angular moments of the decay $\Lambda_b^0 \rightarrow \Lambda \mu^{+} \mu^{-}$ at low hadronic recoil / LHCb Collaboration An analysis of the angular distribution of the decay $\Lambda_b^0 \rightarrow \Lambda \mu^{+} \mu^{-}$ is presented, using data collected with the LHCb detector between 2011 and 2016 and corresponding to an integrated luminosity of approximately 5 fb$^{-1}$. [...] arXiv:1808.00264 ; CERN-EP-2018-197 ; LHCb-PAPER-2018-029 ; LHCB-PAPER-2018-029. - 2018. - 27 p. Fulltext - Related data file(s) - Supplementary information - Fulltext

2018-07-30
16:01
 Measurement of the relative $B^{-} \rightarrow D^{0} / D^{*0} / D^{**0} \mu^{-} \overline{\nu}_\mu$ branching fractions using $B^{-}$ mesons from $\overline{B}{}_{s2}^{*0}$ decays / LHCb Collaboration The decay of the narrow resonance $\overline{B}{}_{s2}^{*0}\!\rightarrow B^- K^+$ can be used to determine the $B^-$ momentum in partially reconstructed decays without any assumptions on the decay products of the $B^-$ meson. [...] arXiv:1807.10722 ; LHCb-PAPER-2018-024 ; CERN-EP-2018-190 ; LHCB-PAPER-2018-024. - 2018. - 27 p. Fulltext - Related data file(s) - Fulltext - Supplementary information

2018-07-18
10:00
 Search for $C\!P$ violation in $\Lambda^0_b \to p K^-$ and $\Lambda^0_b \to p \pi^-$ decays / LHCb Collaboration A search for $C\!P$ violation in $\Lambda^0_b \to p K^-$ and $\Lambda^0_b \to p \pi^-$ decays is presented using a sample of $pp$ collisions collected with the LHCb detector and corresponding to an integrated luminosity of 3.0 fb$^{-1}$. [...] arXiv:1807.06544 ; LHCb-PAPER-2018-025 ; CERN-EP-2018-189 ; LHCB-PAPER-2018-025. - 2018. - 18 p. Related data file(s) - Supplementary Information - Fulltext - Fulltext - Preprint

2018-07-16
15:53
 Measurement of $\Upsilon$ production in $pp$ collisions at $\sqrt{s}$= 13 TeV / LHCb Collaboration The production cross-sections of $\Upsilon(1S)$, $\Upsilon(2S)$ and $\Upsilon(3S)$ mesons in proton-proton collisions at $\sqrt{s}$= 13 TeV are measured with a data sample corresponding to an integrated luminosity of $277 \pm 11$ $\rm pb^{-1}$ recorded by the LHCb experiment in 2015. The $\Upsilon$ mesons are reconstructed in the decay mode $\Upsilon\to\mu^{+}\mu^{-}$. [...] LHCB-PAPER-2018-002; CERN-EP-2018-054; arXiv:1804.09214; LHCB-PAPER-2018-002.- 2018-07-20 - 26 p. - Published in : JHEP 07 (2018) 134 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP;

2018-07-06
10:57
 First observation of the doubly charmed baryon decay $\Xi_{cc}^{++} \rightarrow \Xi_{c}^{+} \pi^{+}$ / LHCb Collaboration The doubly charmed baryon decay $\Xi_{cc}^{++} \rightarrow \Xi_{c}^{+} \pi^{+}$ is observed for the first time, with a statistical significance of $5.9\sigma$, confirming a recent observation of the baryon in the $\Lambda_c^{+} K^{-} \pi^{+} \pi^{+}$ final state [...] LHCb-PAPER-2018-026 ; CERN-EP-2018-172 ; LHCB-PAPER-2018-026 ; arXiv:1807.01919 ; LHCB-PAPER-2018-026. - 2018. - 17 p. Fulltext - Related data file(s) - Supplementary information - Full text

2018-07-06
10:51
 Measurement of the $\Omega_c^0$ baryon lifetime / LHCb Collaboration We report a measurement of the lifetime of the $\Omega_c^0$ baryon using proton-proton collision data at center-of-mass energies of 7 and 8~TeV, corresponding to an integrated luminosity of 3.0 fb$^{-1}$ collected by the LHCb experiment. The sample consists of about 1000 $\Omega_b^-\to\Omega_c^0\mu^-\bar{\nu}_{\mu} X$ signal decays, where the $\Omega_c^0$ baryon is detected in the $pK^-K^-\pi^+$ final state and $X$ represents possible additional undetected particles in the decay. [...] arXiv:1807.02024; LHCb-PAPER-2018-028; CERN-EP-2018-175; LHCB-PAPER-2018-028; LHCB-PAPER-2018-028.- Geneva : CERN, 2018-09-01 - 10 p. - Published in : Phys. Rev. Lett. 121 (2018) 092003 Article from SCOAP3: PDF; Fulltext: PDF; Preprint: PDF; Related data file(s): ZIP; Supplementary information: ZIP;