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CERN Document Server 223 notices trouvées  1 - 10suivantfin  aller vers la notice: La recherche a duré 0.54 secondes. 
1.
Amplitude analysis of the $B^+ \to D^+ D^- K^+$ decay / LHCb Collaboration
Results are reported from an amplitude analysis of the $B^+\to D^+D^-K^+$ decay. The analysis is carried out using LHCb proton-proton collision data taken at $\sqrt{s}=7,8,$ and $13$ TeV, corresponding to a total integrated luminosity of 9 fb$^{-1}$. [...]
arXiv:2009.00026; LHCb-PAPER-2020-025; CERN-EP-2020-159.- 2020-12-07 - 48 p. - Published in : Phys. Rev. D 102 (2020) 112003 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
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2.
Search for long-lived particles decaying to $e^{\pm} \mu^{\mp} \nu$ / LHCb Collaboration
Long-lived particles decaying to $e^\pm \mu^\mp \nu$, with masses between 7 and 50 GeV/c$^2$ and lifetimes between 2 and 50 ps, are searched for by looking at displaced vertices containing electrons and muons of opposite charges. The search is performed using 5.4 fb$^{-1}$ of $pp$ collisions collected with the LHCb detector at a centre-of-mass energy of $\sqrt{s} = 13$ TeV. [...]
arXiv:2012.02696; LHCb-PAPER-2020-027; CERN-EP-2020-212.- Geneva : CERN, 2021-03-26 - 16 p. - Published in : Eur. Phys. J. C 81 (2021) 261 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
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3.
Observation of the $\varLambda^{0}_{b}\to\varLambda^{+}_{c}K^{+}K^{-}\pi^{-}$ decay / LHCb Collaboration
The $\varLambda^{0}_{b}\to\varLambda^{+}_{c}K^{+}K^{-}\pi^{-}$ decay is observed for the first time using a data sample of proton-proton collisions at centre-of-mass energies of $\sqrt{s}=7$ and 8 $\rm{TeV}$ collected by the $\mbox{LHCb}$ detector, corresponding to an integrated luminosity of $3{\rm{fb}^{-1}}$. The ratio of branching fractions between the $\varLambda^{0}_{b}\to\varLambda^{+}_{c}K^{+}K^{-}\pi^{-}$ and the $\varLambda^{0}_{b}\to\varLambda^{+}_{c}D^{-}_{s}$ decays is measured to be \begin{equation*} \frac{\mathcal{B} ( \varLambda^{0}_{b}\to\varLambda^{+}_{c}K^{+}K^{-}\pi^{-}) } {\mathcal{B} ( \varLambda^{0}_{b}\to\varLambda^{+}_{c} D^{-}_{s})} = (9.26 \pm 0.29 \pm 0.46 \pm 0.26)\times10^{-2}, \end{equation*} where the first uncertainty is statistical, the second systematic and the third is due to the knowledge of the $D^{-}_{s}\to K^{+}K^{-}\pi^{-}$ branching fraction. [...]
arXiv:2011.13738; LHCb-PAPER-2020-028; CERN-EP-2020-209; LHCB-PAPER-2020-028; LHCB-PAPER-2020-028.- Geneva : CERN, 2021-04-10 - 20 p. - Published in : Phys. Lett. B 815 (2021) 136172 Article from SCOAP3: PDF; Fulltext: PAPER-LHCb-2020-028-arXiv - PDF; 2011.13738 - PDF; Related data file(s): ZIP;
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4.
Search for heavy neutral leptons in $W^+ \to \mu^+ \mu^{\pm} jet $ decays / LHCb Collaboration
A search is performed for heavy neutrinos in the decay of a $W$ boson into two muons and a jet. The data set corresponds to an integrated luminosity of approximately $3.0 \text{ fb}^{- 1}$ of proton-proton collision data at centre-of-mass energies of 7 and $8 \text{ TeV}$ collected with the LHCb experiment. [...]
arXiv:2011.05263; LHCb-PAPER-2020-022; CERN-EP-2020-194; LHCB-PAPER-2020-022.- Geneva : CERN, 2021-03-22 - 15 p. - Published in : Eur. Phys. J. C 81 (2021) 248 Article from SCOAP3: PDF; Fulltext: 2011.05263 - PDF; LHCb-PAPER-2020-022 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
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5.
Searches for 25 rare and forbidden decays of $D^{+}$ and $ {D}_s^{+} $ mesons / LHCb Collaboration
A search is performed for rare and forbidden charm decays of the form $D_{(s)}^+ \to h^\pm \ell^+ \ell^{(\prime)\mp}$, where $h^\pm$ is a pion or kaon and $\ell^{(')\pm}$ is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of $1.6\text{fb}^{-1}$, collected by the LHCb experiment in 2016. [...]
arXiv:2011.00217; LHCb-PAPER-2020-007; CERN-EP-2020-140.- 2021-06-07 - 24 p. - Published in : JHEP 2106 (2021) 044 Article from SCOAP3: PDF; Fulltext: PDF;
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6.
Observation of new excited ${B} ^0_{s} $ states / LHCb Collaboration
A structure is observed in the $B^+K^-$ mass spectrum in a sample of proton--proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, collected with the LHCb detector and corresponding to a total integrated luminosity of 9 fb${}^-1$. The structure is interpreted as the result of overlapping excited $B_s^0$ states. [...]
arXiv:2010.15931; LHCb-PAPER-2020-026; CERN-EP-2020-185; LHCB-PAPER-2020-026.- Geneva : CERN, 2021-07-12 - 17 p. - Published in : Eur. Phys. J. C 81 (2021) 601 Fulltext: LHCb-PAPER-2020-026 - PDF; document - PDF; 2010.15931 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
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7.
Measurement of differential $b\bar{b}$- and $c\bar{c}$-dijet cross-sections in the forward region of $pp$ collisions at $\sqrt{s}=13 ~ \mathrm{TeV}$ / LHCb Collaboration
The inclusive $b \bar{b}$- and $c \bar{c}$-dijet production cross-sections in the forward region of $pp$ collisions are measured using a data sample collected with the LHCb detector at a centre-of-mass energy of 13 TeV in 2016. The data sample corresponds to an integrated luminosity of 1.6 fb$^{-1}$. [...]
arXiv:2010.09437; LHCb-PAPER-2020-018; CERN-EP-2020-174; LHCB-PAPER-2020-018.- Geneva : CERN, 2021-02-02 - 37 p. - Published in : JHEP 2102 (2021) 023 Article from SCOAP3: PDF; Fulltext: 2010.09437 - PDF; bb_cc_Run2_paper_v11 - PDF; Related data file(s): ZIP;
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8.
Measurement of the CKM angle $\gamma$ in $B^\pm\to D K^\pm$ and $B^\pm \to D \pi^\pm$ decays with $D \to K_\mathrm S^0 h^+ h^-$ / LHCb Collaboration
A measurement of $CP$-violating observables is performed using the decays ${B^\pm\to D K^\pm}$ and ${B^\pm\to D \pi^\pm}$, where the $D$ meson is reconstructed in one of the self-conjugate three-body final states $K_{\mathrm S}^0\pi^+\pi^-$ and $K_{\mathrm S}^0K^+K^-$ (commonly denoted $K_{\mathrm S}^0 h^+h^-$). The decays are analysed in bins of the $D$-decay phase space, leading to a measurement that is independent of the modelling of the $D$-decay amplitude. [...]
arXiv:2010.08483; LHCb-PAPER-2020-019; CERN-EP-2020-175; LHCB-PAPER-2020-019.- Geneva : CERN, 2021-02-19 - 36 p. - Published in : JHEP 2102 (2021) 169 Article from SCOAP3: PDF; Fulltext: 2010.08483 - PDF; LHCb-PAPER-2020-019_arxiv_submission - PDF; Related data files: ZIP; Supplementary information: ZIP;
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9.
Strong constraints on the $b \to s\gamma$ photon polarisation from $B^0\to K^{*0} e^+ e^-$ decays / LHCb Collaboration
An angular analysis of the $B^0 \to K^{*0} e^+ e^-$ decay is performed using a data sample corresponding to an integrated luminosity of $9~fb^{-1}$ of $pp$ collisions collected with the LHCb experiment. The analysis is conducted in the very low dielectron mass squared ($q^2$) interval between $0.0008$ and $0.257~{\rm GeV}^2$, where the rate is dominated by the $B^0\to K^{*0}\gamma$ transition with a virtual photon [...]
arXiv:2010.06011; LHCb-PAPER-2020-020; CERN-EP-2020-176; LHCB-PAPER-2020-020.- Geneva : CERN, 2020-12-11 - 25 p. - Published in : JHEP 2012 (2020) 081 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP;
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10.
Observation of multiplicity-dependent prompt $\chi_{c1}(3872)$ and $\psi(2S)$ production in $pp$ collisions / LHCb Collaboration
The production of $\chi_{c1}(3872)$ and $\psi(2S)$ hadrons is studied as a function of charged particle multiplicity in $pp$ collisions at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 2 fb$^{-1}$. For both states, the fraction that is produced promptly at the collision vertex is found to decrease as charged particle multiplicity increases. [...]
arXiv:2009.06619; LHCb-PAPER-2020-023; CERN-EP-2020-161; LHCB-PAPER-2020-023.- Geneva : CERN, 2021-03-06 - 11 p. - Published in : Phys. Rev. Lett. 126 (2021) 092001 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF; Related data file(s): ZIP;
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CERN Document Server : 223 notices trouvées   1 - 10suivantfin  aller vers la notice:
Voir aussi: noms d'auteurs similaires
15 Gruber, L
256 Gruber, Lukas
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