Hyperon \(\Omega\) Production in \(pp\) Collisions at Energy 8 TeV

Authors

  • Nguyen Thị Dung Faculty of Physics, VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam
  • Nguyen Mau Chung Faculty of Physics, VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam
  • Tran Minh Tam École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland

DOI:

https://doi.org/10.15625/0868-3166/27/1/9264

Abstract

Because strange quark produced copiously in pp collisions, strange hyperon production is one of

the ideal tools to investigate the hadronization process and baryon transport theory. We are especially interested in the hyperon Ω production because this baryon contents only strange quark. Our new studies of

the pure strange hyperon Ω produced in pp collision at s = 8 TeV are shown in this report. The following strategy is used to reconstruct the strange hyperon Ω. In the LHCb experiment, the hadrons p, π and K are

identified by the RICH detector with PT threshold > 100 MeV. Only Lambda (from channel Λ → p + π) with PT > 500 MeV are chosen to combine with kaon daughter particle in order to reconstruct a strange hyperon Ω. The reconstructed particles are accepted as Ω candidates in the case it satisfies several criteria such as its invariance mass must be located within the window mas ± 50 MeV/c2 around the nominal value. More than 63 millions selected events are used for this analysis and about 8100 hyperon Ω candidates are reconstructed.

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Author Biography

Nguyen Thị Dung, Faculty of Physics, VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam

VNU University of Science

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Published

23-05-2017

How to Cite

Dung, N. T., Chung, N. M., & Tam, T. M. (2017). Hyperon \(\Omega\) Production in \(pp\) Collisions at Energy 8 TeV. Communications in Physics, 27(1), 91. https://doi.org/10.15625/0868-3166/27/1/9264

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