2022-08-05 06:25 |
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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2022-08-05 06:25 |
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2022-08-05 06:25 |
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2022-08-05 06:25 |
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2022-08-05 06:25 |
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2022-08-05 06:25 |
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2022-08-05 06:25 |
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2022-08-05 06:25 |
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2022-08-05 06:25 |
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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2022-08-05 06:25 |
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