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Search for prompt production of pentaquarks in charm hadron final states / LHCb Collaboration
A search for hidden-charm pentaquark states decaying to a range of $\Sigma_{c}\bar{D}$ and $\Lambda_{c}^{+}\bar{D}$ final states, as well as doubly-charmed pentaquark states to $\Sigma_{c}D$ and $\Lambda_{c}^{+}D$, is made using samples of proton-proton collision data corresponding to an integrated luminosity of $5.7fb^{-1}$ recorded by the LHCb detector at $\sqrt{s} = 13 Te\kern -0.1em V$. Since no significant signals are found, upper limits are set on the pentaquark yields relative to that of the $\Lambda_{c}^+$ baryon in the $\Lambda_{c}^{+}\to pK^{-}\pi^{+}$ decay mode. [...]
arXiv:2404.07131; LHCb-PAPER-2023-018; CERN-EP-2024-071; LHCB-PAPER-2023-018.- Geneva : CERN, 2024-08-01 - 19 p. - Published in : Phys. Rev. D 110 (2024) 032001 Fulltext: LHCb-PAPER-2023-018 - PDF; 2404.07131 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: PDF;

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Observation and branching fraction measurement of the decay $\Xi_b^- \to \Lambda_b^0 \pi^-$ / LHCb Collaboration
The decay $\Xi_b^-\to\Lambda_b^0\pi^-$ is observed using a proton-proton collision data sample collected at center-of-mass energy $\sqrt{s}=13$ TeV with the LHCb detector, corresponding to an integrated luminosity of 5.5 fb$^{-1}$. This process is mediated by the $s\to u\bar{u}d$ quark-level transition, where the $b$ quark in the $\Xi_b^-$ baryon is a spectator in the decay. [...]
arXiv:2307.09427; LHCb-PAPER-2023-015; CERN-EP-2023-116; LHCB-PAPER-2023-015.- Geneva : CERN, 2023-10-01 - 16 p. - Published in : Phys. Rev. D 108 (2023) 072002 Fulltext: Xib2LbPi_2023_14Aug2023 - PDF; Publication - PDF; 2307.09427 - PDF; External link: Previous draft version

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Measurement of the $Z$ boson production cross-section in $pp$ collisions at $\sqrt{s} = 5.02$ TeV / LHCb Collaboration
The first measurement of the $Z$ boson production cross-section at centre-of-mass energy $\sqrt{s} = 5.02\,$TeV in the forward region is reported, using $pp$ collision data collected by the LHCb experiment in year 2017, corresponding to an integrated luminosity of $100 \pm 2\,\rm{pb^{-1}}$. The production cross-section is measured for final-state muons in the pseudorapidity range $2.0<\eta<4.5$ with transverse momentum $p_{\rm{T}}> 20\,\rm{GeV/}\it{c}$. [...]
arXiv:2308.12940; LHCb-PAPER-2023-010; CERN-EP-2023-141; LHCB-PAPER-2023-010.- Geneva : CERN, 2024-02-13 - 38 p. - Published in : JHEP 2402 (2024) 070 Fulltext: LHCb-PAPER-2023-010 - PDF; Publication - PDF; 2308.12940 - PDF; Related data file(s): ZIP;

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Measurement of the CKM angle $\gamma$ using the $B^{\pm}\rightarrow D^*h^{\pm}$ channels / LHCb Collaboration
A measurement of the $CP$-violating observables from $B^{\pm}\rightarrow D^* K^{\pm}$ and $\mbox{$B^{\pm}\rightarrow D^* \pi^{\pm}$}$ decays is presented, where $D^* (D) $ is an admixture of $D^{*0}$ and $\bar{D}^{*0}$ ($D^0$ and $\bar{D}^0$) states and is reconstructed through the decay chains $ D^* \rightarrow D\pi^0/\gamma$ and $\mbox{$D \to K_S^0 \pi^+\pi^-/K_S^0 K^+K^-$}$. The measurement is performed by analysing the signal yield variation across the $D$ decay phase space and is independent of any amplitude model. [...]
arXiv:2310.04277; LHCb-PAPER-2023-012; CERN-EP-2023-170.- Geneva : CERN, 2023-12-01 - 32 p. - Published in : JHEP 2312 (2023) 13 Fulltext: latex_B2Dsth_JHEP - PDF; Publication - PDF; 2310.04277 - PDF; document - PDF; Related data file(s): ZIP;

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Prompt and nonprompt $\psi(2S)$ production in $p$Pb collisions at $\sqrt{s_{NN}}=8.16$ TeV / LHCb Collaboration
The production of $\psi(2S)$ mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{NN}}=8.16$ TeV is studied with the LHCb detector using data corresponding to an integrated luminosity of 34 nb$^{-1}$. The prompt and nonprompt $\psi(2S)$ production cross-sections and the ratio of the $\psi(2S)$ to $J/\psi$ cross-section are measured as a function of the meson transverse momentum and rapidity in the nucleon-nucleon centre-of-mass frame, together with forward-to-backward ratios and nuclear modification factors. [...]
arXiv:2401.11342; LHCb-PAPER-2023-024; CERN-EP-2023-293.- Geneva : CERN, 2024-04-19 - 55 p. - Published in : JHEP 2404 (2024) 111 Fulltext: LHCb-PAPER-2023-024 - PDF; 2401.11342 - PDF; document - PDF; Related data file(s): ZIP;

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Measurement of associated $J/\psi$-$\psi(2S)$ production cross-section in $pp$ collisions at $\sqrt{s}=13$ TeV / LHCb Collaboration
The cross-section of associated $J/\psi$-$\psi(2S)$ production in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=13$ TeV is measured using a data sample corresponding to an integrated luminosity of 4.2 fb$^{-1}$, collected by the LHCb experiment. The measurement is performed for both $J/\psi$ and $\psi(2S)$ mesons having transverse momentum $p_{\text{T}}< 14$ GeV/$c$ and rapidity $2.0< y< 4.5$, assuming negligible polarisation of the $J/\psi$ and $\psi(2S)$ mesons. [...]
arXiv:2311.15921; LHCb-PAPER-2023-023; CERN-EP-2023-243.- Geneva : CERN, 2024-05-23 - 27 p. - Published in : JHEP 2405 (2024) 259 Fulltext: LHCb-PAPER-2023-023 - PDF; 2311.15921 - PDF; Publication - PDF; document - PDF; Related data file(s): ZIP;

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Measurement of $J/\psi$-pair production in $pp$ collisions at $\sqrt{s}=13$ TeV and study of gluon transverse-momentum dependent PDFs / LHCb Collaboration
The production cross-section of $J/\psi$ pairs in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=13$ TeV is measured using a data sample corresponding to an integrated luminosity of 4.2 fb$^{-1}$ collected by the LHCb experiment. The measurement is performed with both $J/\psi$ mesons in the transverse momentum range $0 < p_{\text{T}}<14$ GeV/$c$ and rapidity range $2.0 < y < 4.5$. [...]
arXiv:2311.14085; LHCb-PAPER-2023-022; CERN-EP-2023-242; LHCB-PAPER-2023-022.- Geneva : CERN, 2024-03-14 - 38 p. - Published in : JHEP 2403 (2024) 088 Fulltext: LHCb-PAPER-2023-022 - PDF; 2311.14085 - PDF; document - PDF; Related data file(s): ZIP;

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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 ($p$Pb) collisions in both the forward (1.5 < $y{^\ast}$ < 4.0) and backward (-5.0 < $y{^\ast}$ < -2.5) rapidity regions at a nucleon-nucleon center-of-mass energy of $\sqrt{^sNN}$=8.16 $\text{TeV}$. The nuclear modification factors of both $D{_s}{^+}$ and $D^+$ mesons are determined as a function of transverse momentum, $p{_T}$, and rapidity. [...]
arXiv:2311.08490; LHCb-PAPER-2023-021; CERN-EP-2023-236.- Geneva : CERN, 2024-08-01 - 14 p. - Published in : Phys. Rev. D 110 (2024) L031105 Fulltext: LHCb_PAPER_2023_021_arXiv_ - PDF; 2311.08490 - PDF; Publication - PDF; Related data file(s): ZIP; Supplementary information: ZIP;

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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. The search is performed using an unbinned model-independent method known as the energy test that probes local CP violation in the phase space of the decays. [...]
arXiv:2310.19397; LHCb-PAPER-2023-019; CERN-EP-2023-231.- Geneva : CERN, 2024-03-19 - 21 p. - Published in : JHEP 2403 (2024) 107 Cover note: ZIP; Fulltext: LHCb-PAPER-2023-019 - PDF; 2310.19397 - PDF; document - PDF;

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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 $5.1\mathrm{fb}^{-1}$. The relative branching fractions times the beauty-baryon production cross-sections are measured to be $\begin{align*} \mathcal{R}\left(\frac{\Xi_b^0}{\Lambda_b^0}\right) &\equiv \frac{\sigma\left(\Xi_b^0\right)}{\sigma\left(\Lambda_b^0\right)} \times \frac{\mathcal{B}\left(\Xi_b^0 \rightarrow \Xi_c^+ D_s^-\right)}{\mathcal{B}\left(\Lambda_b^0 \rightarrow \Lambda_c^0 D_s^-\right)} =(15.8\pm1.1\pm0.6\pm7.7)\%,\\ \mathcal{R}\left(\frac{\Xi_b^-}{\Lambda_b^0}\right) &\equiv \frac{\sigma\left(\Xi_b^-\right)}{\sigma\left(\Lambda_b^0\right)} \times \frac{\mathcal{B}\left(\Xi_b^- \rightarrow \Xi_c^0 D_s^-\right)}{\mathcal{B}\left(\Lambda_b^0 \rightarrow \Lambda_c^0 D_s^-\right)} =(16.9\pm1.3\pm0.9\pm4.3)\%, \end{align*}$ where the first uncertainties are statistical, the second systematic, and the third due to the uncertainties on the branching fractions of relevant charm-baryon decays. [...]
arXiv:2310.13546; CERN-EP-2023-173; LHCb-PAPER-2023-017.- Geneva : CERN, 2024-03-07 - 17 p. - Published in : Eur. Phys. J. C 84 (2024) 237 Fulltext: LHCb-PAPER-2023-017 - PDF; 2310.13546 - PDF; Publication - PDF; Related data file(s): ZIP;

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See also: similar author names
1	Afsharnia, H
50	Afsharnia, H.

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