# LHCb Papers

2019-01-16
11:27
 Model-independent observation of exotic contributions to $B^0\to J/\psi K^+\pi^-$ decays 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. [...] CERN-EP-2018-330 ; LHCB-PAPER-2018-043. - 2019. Fulltext - Related data file(s)

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. Fulltext - Related data file(s) - Supplementary information - Fulltext

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. Fulltext - Related data file(s) - Fulltext

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. Fulltext - Related data file(s) - Fulltext - Supplementary information

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. Fulltext - Related data file(s) - Supplementary information - Additional files - Fulltext

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. Fulltext - Related data file(s) - Supplementary information - Fulltext

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;

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

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. Figures, tables and other information - Full text - Related data file(s) - Fulltext

2018-10-05
14:01
 Observation of two resonances in the $\Lambda_b^0 \pi^\pm$ systems and precise measurement of $\Sigma_b^\pm$ and $\Sigma_b^{*\pm}$ properties / LHCb Collaboration The first observation of two structures consistent with resonances in the final states $\Lambda_b^0 \pi^-$ and $\Lambda_b^0 \pi^+$ is reported using samples of $pp$ collision data collected by the LHCb experiment at $\sqrt{s} = 7$ and $8$ TeV, corresponding to an integrated luminosity of 3 $\mathrm{fb}^{-1}$. The ground states $\Sigma_b^\pm$ and $\Sigma_b^{*\pm}$ are also confirmed and their masses and widths are precisely measured.. arXiv:1809.07752; LHCb-PAPER-2018-032; CERN-EP-2018-243; LHCB-PAPER-2018-032.- Geneva : CERN, 2019-01-12 - 9 p. - Published in : Phys. Rev. Lett. 122 (2019) 012001 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Figures, tables and other information