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LHCb Papers

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2023-11-24
09:55
Observation of $\Lambda_b^0 \to \Lambda_c^+ \bar{D}^{(*)0} K^-$ and $\Lambda_b^0 \to \Lambda_c^+ D_s^{*-}$ decays
The decays $\Lambda_b^0 \to \Lambda_c^+\bar{D}^{(*)0}K^-$ and $\Lambda_b^0 \to \Lambda_c^+ D_s^{*-}$ are observed for the first time, in proton-proton collision data at $\sqrt{s}=13$TeV corresponding to an integrated luminosity of 5.4 fb${}^{-1}$ collected with the LHCb detector. [...]
CERN-EP-2023-244 ; arXiv:2311.14088 ; LHCB-PAPER-2023-034. - 2023.
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2023-11-20
10:39
Measurement of the $D^*$ longitudinal polarization in $B^0 \to D^{* -}\tau^+\nu_{\tau}$ decays   / LHCb Collaboration
The longitudinal polarization fraction of the $D^*$ meson is measured in $B^0 \to D^{* -}\tau^+\nu_{\tau}$ decays, where the $\tau$ lepton decays to three charged pions and a neutrino, using proton-proton collision data collected by the LHCb experiment at center-of-mass energies of 7, 8 and 13 TeV and corresponding to an integrated luminosity of 5 fb$^{-1}$. [...]
arXiv:2311.05224 ; LHCb-PAPER-2023-020 ; CERN-EP-2023-225. - 2023.
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2023-11-17
16:37
A model-independent measurement of the CKM angle $\gamma$ in partially reconstructed $B^{\pm} \to D^{*} h^{\pm}$ decays with $D \to K_{S}^{0} h^{+}h^{-}$ $(h=\pi, K)$ / LHCb Collaboration
A measurement of $C\!P$-violating observables in $B^{\pm} \to D^{*} K^{\pm}$ and $B^{\pm} \to D^{*} \pi^{\pm}$ decays is made where the photon or neutral pion from the $D^{*} \to D\gamma$ or $D^{*} \to D\pi^{0}$ decay is not reconstructed. [...]
arXiv:2311.10434 ; LHCb-PAPER-2023-029 ; CERN-EP-2023-241. - 2023. - 31 p.
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2023-11-15
11:56
Observation of strangeness enhancement with charmed mesons in high-multiplicity $p\mathrm{Pb}$ collisions at $\sqrt {s_{\mathrm{NN}}}=8.16\,$TeV / LHCb Collaboration
The production of prompt $D^+_{s}$ and $D^+$ mesons is measured by the LHCb experiment in proton-lead ($p\mathrm{Pb}$) collisions in both the forward ($1.5 < y^*<4.0$) and backward ($-5.0 < y ^*<-2.5$) rapidity regions at a nucleon-nucleon center-of-mass energy of $\sqrt {s_{\mathrm{NN}}}=8.16\,$TeV [...]
arXiv:2311.08490 ; LHCb-PAPER-2023-021 ; CERN-EP-2023-236. - 2023. - 44 p.
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2023-11-03
15:43
Fraction of $\chi_c$ decays in prompt $J/\psi$ production measured in $pPb$ collisions at $\sqrt{s_{NN}}=8.16 \text{TeV}$ / LHCb Collaboration
The fraction of $\chi_{c1}$ and $\chi_{c2}$ decays in the prompt $J/\psi$ yield, $F_{\chi c}=\sigma_{\chi c\to J/\psi}/\sigma_{J/\psi}$, is measured by the LHCb detector in $p$Pb collisions at $\sqrt{s_{NN}}=8.16$ TeV. [...]
arXiv:2311.01562 ; LHCb-PAPER-2023-028 ; CERN-EP-2023-224. - 2023. - 20 p.
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2023-10-31
15:28
Search for $\textit{CP}$ violation in the phase space of $D^{0} \rightarrow K_{S}^{0} K^{\pm} \pi^{\mp} $ decays with the energy test / LHCb Collaboration
A search for CP violation in $D^{0} \rightarrow K_{S}^{0} K^{+} \pi^{-} $ and $D^{0} \rightarrow K_{S}^{0} K^{-} \pi^{+} $ decays is reported. [...]
arXiv:2310.19397 ; LHCb-PAPER-2023-019 ; CERN-EP-2023-231. - 2023. - 21 p.
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2023-10-26
15:02
Studies of $\eta$ and $\eta'$ production in $pp$ and $p$Pb collisions / LHCb Collaboration
The production of $\eta$ and $\eta'$ mesons is studied in proton-proton and proton-lead collisions collected with the LHCb detector. [...]
arXiv:2310.17326 ; LHCb-PAPER-2023-030 ; CERN-EP-2023-228. - 2023. - 34 p.
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2023-10-26
13:49
Enhanced production of $\Lambda_b^0$ baryons in high-multiplicity $pp$ collisions at $\sqrt{s}$ = 13TeV / LHCb Collaboration
The production rate of $\Lambda_{b}^{0}$ baryons relative to $B^{0}$ mesons in $pp$ collisions at a center-of-mass energy $\sqrt{s} = 13$ TeV is measured by the LHCb experiment. [...]
arXiv:2310.12278 ; LHCb-PAPER-2023-027 ; CERN-EP-2023-208. - 2023.
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2023-10-23
09:43
Observation of $\Xi_b^0 \rightarrow \Xi_c^+ D_s^-$ and $\Xi_b^- \rightarrow \Xi_c^0 D_s^-$ decaysObservation of $\Xi_b^0 \rightarrow \Xi_c^+ D_s^-$ and $\Xi_b^- \rightarrow \Xi_c^0 D_s^-$ decays / LHCb Collaboration
The $\Xi_b^0 \rightarrow \Xi_c^+ D_s^-$ and $\Xi_b^- \rightarrow \Xi_c^0 D_s^-$ decays are observed for the first time using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of $\sqrt{s}=13\mathrm{TeV}$, corresponding to an integrated luminosity of $5.1\mathrm{fb}^{-1}$. [...]
arXiv:2310.13546 ; CERN-EP-2023-173 ; LHCb-PAPER-2023-017. - 2023. - 28 p.
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2023-09-19
11:45
Measurement of CP violation in $B^0\to \psi(\to\ell^+\ell^-)K^0_\mathrm{S}(\to \pi^+\pi^-)decays$ / LHCb Collaboration
A measurement of time-dependent $C\!P$ violation in the decays of $B^0$ and $\overline{B}^0$ mesons to the final states ${J\!/\!\psi(\to\mu^+\mu^-)K^0_\mathrm{S}}$, $\psi(2S)(\to\mu^+\mu^-)K^0_\mathrm{S}$ and $J\!/\!\psi(\to e^+e^-)K^0_\mathrm{S}$ with $K^0_\mathrm{S}\pi^+\pi^-$ is presented. [...]
arXiv:2309.09728 ; LHCb-PAPER-2023-013 ; CERN-EP-2023-177 ; LHCB-PAPER-2023-013. - 2023.
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