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CERN Document Server 18 records found  1 - 10next  jump to record: Search took 0.74 seconds. 
1.
Evolution of open charm production with event multiplicity with ALICE / Giacalone, Marco (INFN, Bologna ; Bologna U.) /ALICE Collaboration
The study of charm production as a function of multiplicity is important to investigate the role of multi-parton interactions, color-reconnection mechanisms, and spectra modification in high multiplicity events with respect to minimum bias ones, and to dig into the possible presence of collective phenomena in high-multiplicity environments. Moreover, charm cross-section measurements in pp collisions provide a useful test of QCD calculations while measurements in p--Pb collisions are useful to analyze Cold Nuclear Matter effects. In this contribution, recent measurements of the evolution of the production yields with the event charged-particle multiplicity of prompt D-mesons and leptons from heavy-flavour hadron decays in pp collisions at $\sqrt{s} =$ 13 TeV are discussed. The results are compared to the $\mathrm{J/\Psi}$ measurement and to model calculations. [...]
2021 - 9 p. - Published in : PoS CHARM2020 (2021) 055 Fulltext: PDF;
In : 10th International Workshop on Charm Physics (CHARM 2020), Online, Mexico, 31 May - 4 June 2021, pp.055
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2.
Direct CPV in Charm decays at LHCb / Pica, Lorenzo (INFN, Pisa ; Pisa, Scuola Normale Superiore) /LHCb Collaboration
Two searches for direct 𝐶𝑃 violation in charm decays at LHCb are presented in this document. The first is a measurement of $\mathcal{A}_{𝐶𝑃}$ $(𝐷^+_{(𝑠)} → h^+𝜋^0)$ and $\mathcal{A}_{𝐶𝑃}$ $(𝐷^+_{(𝑠)} → h^+𝜂)$, where $(h^+ = 𝜋^+, 𝐾^+)$. The second is the measurement of $\mathcal{A}_{𝐶𝑃}$ $(𝐷^0 →𝐾^0_S𝐾^0_S)$. The latter and five of the results obtained in the former represent the world-best measurement of these quantities up to now..
2021 - 11 p. - Published in : PoS CHARM2020 (2021) 059 Fulltext: PDF;
In : 10th International Workshop on Charm Physics (CHARM 2020), Online, Mexico, 31 May - 4 June 2021, pp.059
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3.
Charm spectroscopy from amplitude analyses in $B_{(s)}$ decays @ LHCb / Cruz Torres, Melissa Maria (Honduras U.) /LHCb Collaboration
Amplitude analysis of $B$ mesons decays offer a good laboratory for charm spectroscopy studies. Theoretical and experimental models of Quantum Chromodynamics can be tested. [...]
2021 - 13 p. - Published in : PoS CHARM2020 (2021) 011 Fulltext: PDF;
In : 10th International Workshop on Charm Physics (CHARM 2020), Online, Mexico, 31 May - 4 June 2021, pp.011
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4.
Charm at CMS / Mejía Guisao, Jhovanny Andres (Antioquia U.) /CMS Collaboration
In this paper we present two studies made by the CMS Collaboration. The first is the CMS measurement of prompt $D^{*+}$, $D^{+}$ and $D^{0}$ production cross sections at $\sqrt{s}=$ 13 TeV. [...]
2021 - 7 p. - Published in : PoS CHARM2020 (2021) 005 Fulltext: PDF;
In : 10th International Workshop on Charm Physics (CHARM 2020), Online, Mexico, 31 May - 4 June 2021, pp.005
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5.
Charm baryon production and fragmentation fractions in pp collisions with ALICE / Seo, Jinjoo (Inha U.) /ALICE Collaboration
In this contribution, the latest measurements of $\Lambda_\mathrm{c}^+$, $\Xi_\mathrm{c}^{0,+}$, $\Sigma_\mathrm{c}^{0,++}$, and the first measurement of $\Omega_\mathrm{c}^0$ baryons performed with the ALICE detector at midrapidity in pp collisions at $\sqrt{s}=5.02$ and $13\,\rm TeV$ are presented. In addition, the \Lc measurement down to $p_\mathrm{T}=0$ in p--Pb collisions will be discussed. Finally, the first measurements of the total charm cross section per unit of rapidity and the fragmentation fractions at midrapidity in pp collisions at the LHC including the charm baryons are discussed..
2021 - 5 p. - Published in : PoS CHARM2020 (2021) 023 Fulltext: PDF;
In : 10th International Workshop on Charm Physics (CHARM 2020), Online, Mexico, 31 May - 4 June 2021, pp.023
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6.
Charm jet and correlation measurements with ALICE in pp and p -- Pb collisions at the LHC / Palasciano, Antonio (Bari U. ; INFN, Bari) /ALICE Collaboration
The recent results about charm jet and correlation measurements by the ALICE experiment are presented in this contribution. The measurements of the $\mathrm{D}^0$ parallel jet momentum fraction in pp collisions at $\sqrt{s}=5.02$ and $13$ TeV are shown and compared with Monte Carlo model predictions. [...]
2021 - 6 p. - Published in : PoS CHARM2020 (2021) 062 Fulltext: PDF;
In : 10th International Workshop on Charm Physics (CHARM 2020), Online, Mexico, 31 May - 4 June 2021, pp.062
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7.
Mixing and indirect CP violation in charm decays at LHCb / Pietrzyk, Guillaume Max (Ecole Polytechnique, Lausanne) /LHCb Collaboration
The very large datasets of charm decays collected by the LHCb experiment from 2011 to 2018 allow the measurement of the mixing and charge-parity ($C\!P$) violation properties of $D^0$ mesons with unprecedented precision. This document covers two recent analyses studying mixing and time-dependent $C\!P$ violation in charm decays at LHCb. [...]
2021 - 10 p. - Published in : PoS CHARM2020 (2021) 034 Fulltext: PDF;
In : 10th International Workshop on Charm Physics (CHARM 2020), Online, Mexico, 31 May - 4 June 2021, pp.034
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8.
Charmonium production in proton-proton and proton-lead collisions with ALICE / Saetre, Jon-Are (Bergen U.) /ALICE Collaboration
Charmonium production studies in hadronic collisions are a powerful tool for improving our understanding of quantum chronodynamics (QCD), the theory of the strong interaction. The production of the charm-quark pair can be described within perturbative QCD, whereas the evolution of this pair into a colorless bound state involves soft scale processes. [...]
2021 - 6 p. - Published in : PoS CHARM2020 (2021) 028 Fulltext: PDF;
In : 10th International Workshop on Charm Physics (CHARM 2020), Online, Mexico, 31 May - 4 June 2021, pp.028
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9.
Charm baryons at LHCb / Seman Bobulska, Dana (University of Glasgow (GB)) /LHCb Collaboration
The LHCb experiment collected the world's largest sample of charmed hadrons during LHC Run 1 and Run 2. With this data set, LHCb is currently providing the world's most precise measurements of properties and production of known charmed baryons, as well as searching for many previously unobserved states. [...]
LHCb-PROC-2022-001; CERN-LHCb-PROC-2022-001.- Geneva : CERN, 2021 - 10. - Published in : PoS CHARM2020 (2021) 030 Fulltext: PDF;
In : 10th International Workshop on Charm Physics (CHARM 2020), Online, Mexico, 31 May - 4 June 2021, pp.030
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10.
ATLAS measurements of CP Violation and Rare decays processes with Beauty mesons / Meshkov, Oleg (M.V. Lomonosov Moscow State University (RU)) /ATLAS Collaboration
The ATLAS experiment has performed accurate measurements of mixing and CP violation in the neutral B mesons, and also of rare neutral B-meson decays proceeding via electroweak FCNC-suppressed processes. This talk will focus on the latest results from ATLAS, such as rate measurements of B^0_s → mu mu and B^0 → mu mu decaysand CP violation in B_s^0 —> J/psi phi decays. [...]
ATL-PHYS-SLIDE-2021-234.- Geneva : CERN, 2021 Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 10th International Workshop on Charm Physics, Online, Online, 31 May - 4 Jun 2021
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