Transverse polarization measurement of Λ hyperons in pNe collisions at √sNN = 68.4 GeV with the LHCb detector

LHCb Collaboration; Nigel Watson; Daniel Johnson; Cristina Lazzeroni; Marcus Madurai; Niladribihari Sahoo; Mark Slater; Paul Swallow; Daniel Thompson; Felicia Volle

doi:10.1007/JHEP09(2024)082

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

LHCb Collaboration, Nigel Watson, Daniel Johnson, Cristina Lazzeroni, Marcus Madurai, Niladribihari Sahoo, Mark Slater, Paul Swallow, Daniel Thompson, Felicia Volle

Physics and Astronomy

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Abstract

A measurement of the transverse polarization of the Λ and 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→pπ⁻ together with its charge conjugated process, the integrated values measured are
P_Λ=0.029±0.019(stat)±0.012(syst),
P_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.

Original language	English
Article number	82
Journal	JHEP
Volume	2024
DOIs	https://doi.org/10.1007/JHEP09(2024)082
Publication status	Published - 17 Sept 2024

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@article{28d5efca3b9448aaa5237e0fe897e726,

title = "Transverse polarization measurement of Λ hyperons in pNe collisions at √sNN = 68.4 GeV with the LHCb detector",

abstract = "A measurement of the transverse polarization of the Λ and Λ¯ hyperons in pNe fixed-target collisions at √sNN = 68.4 GeV is presented using data collected by the LHCb detector. The polarization is studied using the decay Λ→pπ− together with its charge conjugated process, the integrated values measured arePΛ=0.029±0.019(stat)±0.012(syst),PΛ¯=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.",

author = "{LHCb Collaboration} and Nigel Watson and Daniel Johnson and Cristina Lazzeroni and Marcus Madurai and Niladribihari Sahoo and Mark Slater and Paul Swallow and Daniel Thompson and Felicia Volle",

year = "2024",

month = sep,

day = "17",

doi = "10.1007/JHEP09(2024)082",

language = "English",

volume = "2024",

journal = "JHEP",

issn = "1126-6708",

publisher = "Springer",

}

TY - JOUR

T1 - Transverse polarization measurement of Λ hyperons in pNe collisions at √sNN = 68.4 GeV with the LHCb detector

AU - LHCb Collaboration

AU - Watson, Nigel

AU - Johnson, Daniel

AU - Lazzeroni, Cristina

AU - Madurai, Marcus

AU - Sahoo, Niladribihari

AU - Slater, Mark

AU - Swallow, Paul

AU - Thompson, Daniel

AU - Volle, Felicia

PY - 2024/9/17

Y1 - 2024/9/17

N2 - A measurement of the transverse polarization of the Λ and Λ¯ hyperons in pNe fixed-target collisions at √sNN = 68.4 GeV is presented using data collected by the LHCb detector. The polarization is studied using the decay Λ→pπ− together with its charge conjugated process, the integrated values measured arePΛ=0.029±0.019(stat)±0.012(syst),PΛ¯=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.

AB - A measurement of the transverse polarization of the Λ and Λ¯ hyperons in pNe fixed-target collisions at √sNN = 68.4 GeV is presented using data collected by the LHCb detector. The polarization is studied using the decay Λ→pπ− together with its charge conjugated process, the integrated values measured arePΛ=0.029±0.019(stat)±0.012(syst),PΛ¯=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.

U2 - 10.1007/JHEP09(2024)082

DO - 10.1007/JHEP09(2024)082

M3 - Article

SN - 1126-6708

VL - 2024

JO - JHEP

JF - JHEP

M1 - 82

ER -