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May 26 – 31, 2024
Western University
America/Toronto timezone
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(G*) Strangeness production with the ATLAS detector

May 28, 2024, 11:30 AM
15m
SSC Rm 2032 (cap. 135) (Social Science Centre, Western U.)

SSC Rm 2032 (cap. 135)

Social Science Centre, Western U.

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle) Particle Physics / Physique des particules (PPD) (PPD) T1-1 Flavor Physics | Physique des saveurs (PPD)

Speaker

Ho Yin Au Yang (McGill University, (CA))

Description

The strange quark is the lightest sea quark in the proton after the up and down quarks, and its production at the LHC is crucial for the understanding of proton internal structure and fragmentation processes. In this work, strange particles are reconstructed using minimum-bias data from $pp$ collisions at 13 TeV taken by the ATLAS detector. Their kinematic distributions and production cross-sections are studied. In particular, the $K_s$ and $\Lambda$ ($\overline{\Lambda}$) give clean signatures and high yield in the detector, while the $\Xi^{-}$ ($\overline{\Xi}^{+}$), despite its lower yield, could be a strong indicator of strangeness content as it contains two strange quarks. The reconstructed data samples are then compared with Monte Carlo samples to calculate particle detector acceptance and efficiency, to estimate the sensitivity of the data and to better understand strangeness production processes.

Keyword-1 strange quark
Keyword-2 ATLAS

Primary author

Ho Yin Au Yang (McGill University, (CA))

Presentation materials