A measurement of the transverse polarization of the Λ and anti-Λ hyperons in pNe fixed-target collisions at √s_NN = 68.4 GeV is presented using data collected by the LHCb detector. The polarization is studied using the decay Λ → p π− together with its charge conjugated process, the integrated values measured are P_Λ = 0.029 ± 0.019(stat) ± 0.012(syst), P_{anti-Λ} = 0.003 ± 0.023(stat) ± 0.014(syst). Furthermore, the results are shown as a function of the Feynman x variable, transverse momentum, pseudorapidity and rapidity of the hyperons, and are compared with previous measurements.

Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adefisoye, A.A., et al. (2024). Transverse polarization measurement of Λ hyperons in p Ne collisions at √s_NN = 68.4 GeV with the LHCb detector. JOURNAL OF HIGH ENERGY PHYSICS, 2024(9), 0-17 [10.1007/jhep09(2024)082].

Transverse polarization measurement of Λ hyperons in p Ne collisions at √s_NN = 68.4 GeV with the LHCb detector

Carbone, A.;Ferrari, F.;Galli, D.;Patrignani, C.;Spedicato, E.;Villa, A.;
2024

Abstract

A measurement of the transverse polarization of the Λ and anti-Λ hyperons in pNe fixed-target collisions at √s_NN = 68.4 GeV is presented using data collected by the LHCb detector. The polarization is studied using the decay Λ → p π− together with its charge conjugated process, the integrated values measured are P_Λ = 0.029 ± 0.019(stat) ± 0.012(syst), P_{anti-Λ} = 0.003 ± 0.023(stat) ± 0.014(syst). Furthermore, the results are shown as a function of the Feynman x variable, transverse momentum, pseudorapidity and rapidity of the hyperons, and are compared with previous measurements.
2024
Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adefisoye, A.A., et al. (2024). Transverse polarization measurement of Λ hyperons in p Ne collisions at √s_NN = 68.4 GeV with the LHCb detector. JOURNAL OF HIGH ENERGY PHYSICS, 2024(9), 0-17 [10.1007/jhep09(2024)082].
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adefisoye, A. A.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Agapopoul...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/1006091
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