# EP Preprints

Najnovije dodano:
2022-11-24
12:28
 Searches for the rare hadronic decays $B^0 \to p \bar p p \bar p$ and $B^0_s \to p \bar p p \bar p$ Searches for the rare hadronic decays $B^0 \rightarrow p\bar{p}p\bar{p}$ and $B^0_{s} \rightarrow p\bar{p}p\bar{p}$ are performed using proton-proton collision data recorded by the LHCb experiment and corresponding to an integrated luminosity of 9$\rm{fb}^{-1}$. [...] CERN-EP-2022-206 ; LHCB-PAPER-2022-032. - 2022. Fulltext - Related data file(s)

2022-11-23
10:16
 Open charm production and asymmetry in $p$Ne collisions at $\sqrt{s_{\scriptscriptstyle\rm NN}} =$ 68.5 GeV A measurement of $D^0$ meson production by the LHCb experiment in its fixed-target configuration is presented [...] CERN-EP-2022-217 ; LHCB-PAPER-2022-015. - 2022. Fulltext - Related data file(s)

2022-11-23
10:11
 Charmonium production in $p$Ne collisions at $\sqrt{s_{\rm NN}}=68.5$ GeV The measurement of charmonium states produced in proton-neon ($p$Ne) collisions by the LHCb experiment in its fixed-target configuration is presented. [...] CERN-EP-2022-216 ; LHCB-PAPER-2022-014. - 2022. Fulltext - Related data file(s)

2022-11-23
09:47
 $J/\psi$ and $D^0$ production in $\sqrt{s_{\rm NN}}$ = 68.5 GeV PbNe collisions The first measurement of $J/\psi$ and $D^0$ production in PbNe collisions by the LHCb experiment in its fixed-target configuration is reported. [...] CERN-EP-2022-215 ; LHCB-PAPER-2022-011. - 2022. Fulltext - Related data file(s)

2022-11-10
11:38
 First observation of the $B^+ \rightarrow D_s^+ D_s^- K^+$ decay The $B^+ \rightarrow D_s^+ D_s^- K^+$ decay is observed for the first time using proton-proton collision data collected by the LHCb detector at centre-of-mass energies of $7$, $8$ and $13\, \text{TeV}$, corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$. [...] CERN-EP-2022-205 ; arXiv:2211.05034 ; LHCB-PAPER-2022-019. - 2022. Fulltext - Related data file(s)

2022-11-09
18:43
 Acceleration with GPUs and other RooFit news / Michalainas, Emmanouil (Aristotle University of Thessaloniki (GR)) ; Rembser, Jonas (CERN) ; Hageboeck, Stephan (CERN) ; Moneta, Lorenzo (CERN) RooFit is a toolkit for statistical modeling and fitting, and together with RooStats it is used for measurements and statistical tests by most experiments in particle physics, particularly the LHC experiments. [...] CERN-OPEN-2022-014. - 2022. - 6 p. Preprint

2022-11-02
14:14
 Study of the $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ decay The decay $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ is studied in proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV using data corresponding to an integrated luminosity of 5 $\mathrm{fb}^{-1}$ collected by the LHCb experiment. [...] CERN-EP-2022-196 ; arXiv:2211.00812 ; LHCB-PAPER-2022-028. - 2022. Fulltext - Related data file(s) - Fulltext

2022-10-28
16:51
 Observation of the $B_s^{0} \rightarrow D^{*+}D^{*-}$ decay The first observation of the $B_s^0 \to D^{\ast +} D^{\ast -}$ decay and the measurement of its branching ratio relative to the $B_d^0 \to D^{\ast +} D^{\ast -}$ decay are presented. [...] arXiv:2210.14945 ; CERN-EP-2022-193 ; LHCB-PAPER-2022-023. - 2022. Fulltext - Related data file(s) - Supplementary information

2022-10-27
12:25
 Observation of a resonant structure near the $D_s^+ D_s^-$ threshold in the $B^+\to D_s^+ D_s^- K^+$ decay An amplitude analysis of the $B^+\to D_s^+ D_s^- K^+$ decay is carried out to study for the first time its intermediate resonant contributions, using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV. [...] CERN-EP-2022-200 ; arXiv:2210.15153 ; LHCB-PAPER-2022-018. - 2022. Fulltext - Related data file(s) - Fulltext

2022-10-24
16:45
 Measurement of the ratio of branching fractions $\mathcal{B}(B_c^+ \to B_s^0 \pi^+)/\mathcal{B}(B_c^+ \to J/\psi \pi^+)$ The ratio of branching fractions of $B_c^+ \to B_s^0 \pi^+$ and $B_c^+ \to J/\psi \pi^+$ decays is measured with proton-proton collision data of a centre-of-mass energy of $13\ \text{TeV}$. [...] LHCb-PAPER-2022-034 ; CERN-EP-2022-204 ; arXiv:2210.12000 ; LHCB-PAPER-2022-034. - 2022. Fulltext - Related data file(s)