# EP Preprints

Ultimi arrivi:
2021-09-16
11:03
 Search for the doubly charmed baryon $\it{\Xi}_{cc}^{+}$ in the $\it{\Xi}_{c}^{+} \pi^{-} \pi^{+}$ final state A search for the doubly charmed baryon $\it{\Xi}_{cc}^{+}$ is performed in the $\it{\Xi}_{cc}^{+} \rightarrow \it{\Xi}_{c}^{+} \pi^{-} \pi^{+}$ decay mode, where the $\it{\Xi}_{c}^{+}$ baryon is reconstructed in the $p K^{-} \pi^{+}$ final state. [...] CERN-EP-2021-155 ; arXiv:2109.07292 ; LHCB-PAPER-2021-019. - 2021. Fulltext - Related data file(s) - Supplementary information

2021-09-16
08:46
 Measurement of $\chi_{c1}(3872)$ production in proton-proton collisions at $\sqrt{s}=8$ and 13 TeV The production cross-section of the $\chi_{c1}(3872)$ state relative to the $\psi(2S)$ meson is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of $\sqrt{s}=8$ and 13 TeV, corresponding to integrated luminosities of 2.0 and 5.4 fb$^{-1}$, respectively. [...] CERN-EP-2021-182 ; arxiv:2109.07360 ; LHCB-PAPER-2021-026. - 2021. Fulltext - Related data file(s)

2021-09-03
14:00
 Study of the doubly charmed tetraquark $T_{cc}^+$ / LHCb Collaboration An exotic narrow state in the $D^0D^0\pi^+$ mass spectrum just below the $D^{*+}D^0$ mass threshold is studied using a data set corresponding to an integrated luminosity of 9fb$^{-1}$ acquired with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13TeV. [...] arXiv:2109.01056 ; CERN-EP-2021-169 ; LHCb-PAPER-2021-032 ; LHCB-PAPER-2021-032. - 2021. - 60 p. Fulltext - Related data file(s) - Supplementary information

2021-09-03
13:57
 Measurement of the $W$ boson mass / LHCb Collaboration The $W$ boson mass is measured using proton-proton collision data at $\sqrt{s}=13$ TeV corresponding to an integrated luminosity of 1.7 fb$^{-1}$ recorded during 2016 by the LHCb experiment. [...] arXiv:2109.01113 ; LHCb-PAPER-2021-024 ; CERN-EP-2021-170 ; LHCB-PAPER-2021-024. - 2021. - 36 p. Fulltext - Related data file(s) - Supplementary information

2021-09-03
13:46
 Observation of an exotic narrow doubly charmed tetraquark / LHCb Collaboration Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. [...] arXiv:2109.01038 ; CERN-EP-2021-165 ; LHCb-PAPER-2021-031 ; LHCB-PAPER-2021-031. - 2021. - 24 p. Fulltext - Related data file(s)

2021-09-03
12:31
 Measurement of the lifetimes of promptly produced $\Omega^{0}_{c}$ and $\Xi^{0}_{c}$ baryons / LHCb Collaboration A measurement of the lifetimes of the $\Omega^{0}_{c}$ and $\Xi^{0}_{c}$ baryons is reported using proton--proton collision data at a centre-of-mass energy of $13\ \text{TeV}$, corresponding to an integrated luminosity of $5.4\ \text{fb}^{-1}$ collected by the LHCb experiment. [...] arXiv:2109.01334 ; LHCb-PAPER-2021-021 ; CERN-EP-2021-167 ; LHCB-PAPER-2021-021. - 2021. Fulltext - Related data file(s) - Supplementary information

2021-09-02
11:54
 Updated search for $B_c^+$ decays to two charm mesons / LHCb Collaboration A data set corresponding to an integrated luminosity of $9 \text{\, fb}^{-1}$ of proton-proton collisions collected by the LHCb experiment has been analysed to search for $B_c^+ \to D^{(*)+}_{(s)} (\overline{D})^{(*)0}$ decays. [...] arXiv:2109.00488 ; LHCb-PAPER-2021-023 ; CERN-EP-2021-154 ; LHCB-PAPER-2021-023. - 2021. Fulltext - Related data file(s) - Supplementary information

2021-09-02
11:51
 Measurement of $J/\psi$ production cross-sections in $pp$ collisions at $\sqrt{s}=5$ TeV / LHCb Collaboration The production cross-sections of $J/\psi$ mesons in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=5$ TeV are measured using a data sample corresponding to an integrated luminosity of $9.13\pm0.18~\text{pb}^{-1}$, collected by the LHCb experiment. [...] arXiv:2109.00220 ; LHCb-PAPER-2021-020,CERN-EP-2021-156 ; LHCB-PAPER-2021-020. - 2021. Fulltext - Related data file(s) - Supplementary information

2021-08-31
11:16
 Measurement of the nuclear modification factor and prompt charged particle production in $p\mathrm{Pb}$ and $pp$ collisions at $\sqrt{s_{\scriptscriptstyle\mathrm{NN}}}=5\,\mathrm{TeV}$ / LHCb Collaboration The production of prompt charged particles in proton-lead collisions and in proton-proton collisions at the nucleon-nucleon centre-of-mass energy ${\sqrt{s_{\scriptscriptstyle\mathrm{NN}}}=5\,\mathrm{TeV}}$ is studied at LHCb as a function of pseudorapidity ($\eta$) and transverse momentum ($p_{\mathrm{T}}$) with respect to the proton beam direction. [...] arXiv:2108.13115 ; LHCb-PAPER-2021-015 ; CERN-EP-2021-130 ; LHCB-PAPER-2021-015. - 2021. Fulltext - Related data file(s) - Supplementary information

2021-08-24
10:52
 Measurement of the $B^0_s\to\mu^+\mu^-$ decay properties and search for the $B^0\to\mu^+\mu^-$ and $B^0_s\to\mu^+\mu^-\gamma$ decays / LHCb Collaboration An improved measurement of the decay $B^0_s\to\mu^+\mu^-$ and searches for the decays $B^0\to\mu^+\mu^-$ and $B^0_s\to\mu^+\mu^-\gamma$ are performed at the LHCb experiment using data collected in proton-proton collisions at $\sqrt{s} = 7,~8$ and $13$ TeV, corresponding to integrated luminosities of 1, 2 and 6 fb$^{-1}$, respectively. [...] arXiv:2108.09283 ; CERN-EP-2021-133 ; LHCb-PAPER-2021-008 ; LHCB-PAPER-2021-008. - 2021. - 52 p. Fulltext - Related data file(s) - Supplementary information