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2019-01-22
15:12
Measurement of the mass and production rate of $\Xi_b^-$ baryons
The first measurement of the production rate of $\Xi_b^-$ baryons in $pp$ collisions relative to that of $\Lambda_b^0$ baryons is reported, using data samples collected by the LHCb experiment, and corresponding to integrated luminosities of 1, 2 and 1.6~fb$^{-1}$ at $\sqrt{s}=7,~8$ and 13~TeV, respectively. [...]
CERN-EP-2018-348 ; LHCB-PAPER-2018-047. - 2019.
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2019-01-16
11:27
Model-independent observation of exotic contributions to $B^0\to J/\psi K^+\pi^-$ decays / LHCb Collaboration
An angular analysis of $B^0\to J/\psi K^+\pi^-$ decays is performed, using proton-proton collision data corresponding to an integrated luminosity of 3 ${\rm fb}^{-1}$ collected with the LHCb detector. [...]
arXiv:1901.05745 ; LHCb-PAPER-2018-043 ; CERN-EP-2018-330 ; LHCB-PAPER-2018-043. - 2019.
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2018-12-20
11:46
Measurement of the branching fraction and $C\!P$ asymmetry in $B^{+}\rightarrow J/\psi \rho^{+}$ decays / LHCb Collaboration
The branching fraction and direct $C\!P$ asymmetry of the decay $B^{+}\rightarrow J/\psi \rho^{+}$ are measured using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7 and 8 TeV, corresponding to a total integrated luminosity of 3$\mbox{fb}^{-1}$. [...]
arXiv:1812.07041 ; LHCb-PAPER-2018-036 ; CERN-EP-2018-298 ; LHCB-PAPER-2018-036. - 2018. - 21 p.
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2018-12-19
11:38
Search for the rare decay $B^{+} \rightarrow \mu^{+}\mu^{-}\mu^{+}\nu_{\mu}$ / LHCb Collaboration
A search for the rare leptonic decay $B^{+} \rightarrow \mu^{+}\mu^{-}\mu^{+}\nu_{\mu}$ is performed using proton-proton collision data corresponding to an integrated luminosity of $4.7$ fb$^{-1}$ collected by the LHCb experiment. [...]
arXiv:1812.06004 ; CERN-EP-2018-293 ; LHCb-PAPER-2018-037 ; LHCB-PAPER-2018-037. - 2018. - 20 p.
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2018-12-19
10:18
Study of the $B^0\to \rho(770)^0 K^*(892)^0$ decay with an amplitude analysis of $B^0\to (\pi^+\pi^-) (K^+\pi^-)$ decays / LHCb Collaboration
An amplitude analysis of ${B^0\to (\pi^+\pi^-) (K^+\pi^-)}$ decays is performed in the two-body invariant mass regions ${300 < m(\pi^+\pi^-)<1100}$ MeV/$c^2$, accounting for the $\rho^0$, $\omega$, $f_0(500)$, $f_0(980)$ and $f_0(1370)$ resonances, and ${750 < m(K^+\pi^-)<1200}$ MeV/$c^2$, which is dominated by the $K^{*}(892)^0$ meson. [...]
arXiv:1812.07008 ; LHCb-PAPER-2018-042 ; CERN-EP-2018-316 ; LHCB-PAPER-2018-042. - 2018. - 28 p.
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2018-11-22
12:02
Search for $CP$ violation through an amplitude analysis of $D^0\rightarrow K^+ K^- \pi^+ \pi^-$ decays / LHCb Collaboration
A search for $CP$ violation in the Cabibbo-suppressed $D^0\rightarrow K^+ K^- \pi^+ \pi^-$ decay mode is performed using an amplitude analysis. [...]
arXiv:1811.08304 ; LHCb-PAPER-2018-041 ; CERN-EP-2018-299 ; LHCB-PAPER-2018-041. - 2018. - 33 p.
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2018-10-22
15:42
First measurement of charm production in fixed-target configuration at the LHC / LHCb Collaboration
The first measurement of heavy-flavour production by the LHCb experiment in its fixed-target mode is presented. [...]
arXiv:1810.07907 ; LHCb-PAPER-2018-023 ; CERN-EP-2018-266 ; LHCB-PAPER-2018-023. - 2018. - 21 p.
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2018-10-18
14:47
Study of $\Upsilon$ production in $p$Pb collisions at $\sqrt{s_{NN}}=8.16$ TeV / LHCb Collaboration
The production of $\Upsilon (nS)$ mesons ($n=1,2,3$) in $p$Pb and Pb$p$ collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{NN}}=8.16$ TeV is measured by the LHCb experiment, using a data sample corresponding to an integrated luminosity of 31.8 nb$^{-1}$. The $\Upsilon (nS)$ mesons are reconstructed through their decays into two opposite-sign muons. [...]
arXiv:1810.07655; LHCb-PAPER-2018-035; CERN-EP-2018-267.- Geneva : CERN, 2018-11-29 - 37 p. - Published in : JHEP 11 (2018) 194 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP;

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2018-10-17
15:45
Measurement of the charm-mixing parameter $y_{CP}$ / LHCb Collaboration
A measurement of the charm-mixing parameter $y_{CP}$ using $D^0 \to K^+ K^-$, $D^0 \to \pi^+ \pi^-$, and $D^0 \to K^- \pi^+$ decays is reported. The $D^0$ mesons are required to originate from semimuonic decays of $B^-$ and $\overline{B}^0$ mesons. [...]
arXiv:1810.06874; CERN-EP-2018-270 and LHCb-PAPER-2018-038; LHCb-PAPER-2018-038; CERN-EP-2018-270; LHCB-PAPER-2018-038.- Geneva : CERN, 2019-01-08 - 10 p. - Published in : 10.1103/PhysRevLett.122.011802 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Supplementary information: ZIP; External link: Figures, tables and other information

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2018-10-12
13:40
Measurement of the branching fractions of the decays $D^+\rightarrow K^-K^+K^+$, $D^+\rightarrow \pi^-\pi^+K^+$ and $D^+_s\rightarrow\pi^-K^+K^+$ / LHCb Collaboration
The branching fractions of the doubly Cabibbo-suppressed decays $D^+\rightarrow K^-K^+K^+$, $D^+\rightarrow \pi^-\pi^+K^+$ and $D^+_s\rightarrow\pi^-K^+K^+$ are measured using the decays $D^+\rightarrow K^-\pi^+\pi^+$ and $D^+_s+\rightarrow K^-K^+\pi^+$ as normalisation channels. [...]
arXiv:1810.03138 ; LHCb-PAPER-2018-033 ; CERN-EP-2018-244 ; LHCB-PAPER-2018-033. - 2018. - 22 p.
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