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

The LHCb Collaboration; W. Barter; F. Betti; A. Bohare; E. Buchanan; P. E. L. Clarke; R. Currie; S. Eisenhardt; K. Farmer; Y. Liu; F. Muheim; M. Needham; F. Oliva; R.H. O'Neil; O. Ozcelik; M. Richardson-Slipper; G. Sarpis; L. Soares Lavra; C. Vrahas; M. R. J. Williams

doi:10.1007/JHEP09(2024)082

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

The LHCb Collaboration
, W. Barter
, F. Betti
, A. Bohare
, E. Buchanan
, P. E. L. Clarke
, R. Currie
, S. Eisenhardt
, K. Farmer
, Y. Liu
, F. Muheim
, M. Needham
, F. Oliva
, R.H. O'Neil
, O. Ozcelik
, M. Richardson-Slipper
, G. Sarpis
, L. Soares Lavra
, C. Vrahas
, M. R. J. Williams

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

A measurement of the transverse polarization of the Λ and Λ‾Λ hyperons in pNe fixed-target collisions at sNNsNN = 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 PΛ=0.029±0.019(stat)±0.012(syst),PΛ‾=0.003±0.023(stat)±0.014(syst).PΛ=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.

Original language	English
Article number	82
Pages (from-to)	1-17
Number of pages	17
Journal	Journal of High Energy Physics
Volume	2024
Issue number	9
DOIs	https://doi.org/10.1007/JHEP09(2024)082
Publication status	Published - 17 Sept 2024

Keywords / Materials (for Non-textual outputs)

Fixed Target Experiments
Polarization

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10.1007/JHEP09(2024)082Licence: Creative Commons: Attribution (CC-BY)

3 Active
4 Finished

Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/04/23 → 30/09/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/10/22 → 30/09/26
Project: Research
Beautiful Flavours: Discovering New Physics with B-hadrons and Tau-leptons
Barter, W. (Principal Investigator)
UKRI (formerly RCUK)
1/07/22 → 11/08/27
Project: Research

Cite this

The LHCb Collaboration, Barter, W., Betti, F., Bohare, A., Buchanan, E., Clarke, P. E. L., Currie, R., Eisenhardt, S., Farmer, K., Liu, Y., Muheim, F., Needham, M., Oliva, F., O'Neil, R. H., Ozcelik, O., Richardson-Slipper, M., Sarpis, G., Lavra, L. S., Vrahas, C., & Williams, M. R. J. (2024). Transverse polarization measurement of Λ hyperons in pNe collisions at sNNsNN = 68.4 GeV with the LHCb detector. Journal of High Energy Physics, 2024(9), 1-17. Article 82. https://doi.org/10.1007/JHEP09(2024)082

@article{dfa366d9efa743b984615123f40970ca,

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

abstract = "A measurement of the transverse polarization of the Λ and Λ‾Λ hyperons in pNe fixed-target collisions at sNNsNN = 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 PΛ=0.029±0.019(stat)±0.012(syst),PΛ‾=0.003±0.023(stat)±0.014(syst).PΛ=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.",

keywords = "Fixed Target Experiments, Polarization",

author = "\{The LHCb Collaboration\} and W. Barter and F. Betti and A. Bohare and E. Buchanan and Clarke, \{P. E. L.\} and R. Currie and S. Eisenhardt and K. Farmer and Y. Liu and F. Muheim and M. Needham and F. Oliva and R.H. O'Neil and O. Ozcelik and M. Richardson-Slipper and G. Sarpis and Lavra, \{L. Soares\} and C. Vrahas and Williams, \{M. R. J.\}",

year = "2024",

month = sep,

day = "17",

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

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The LHCb Collaboration, Barter, W, Betti, F, Bohare, A, Buchanan, E , Clarke, PEL , Currie, R , Eisenhardt, S, Farmer, K, Liu, Y, Muheim, F , Needham, M , Oliva, F, O'Neil, RH, Ozcelik, O, Richardson-Slipper, M, Sarpis, G, Lavra, LS, Vrahas, C & Williams, MRJ 2024, 'Transverse polarization measurement of Λ hyperons in pNe collisions at sNNsNN = 68.4 GeV with the LHCb detector', Journal of High Energy Physics, vol. 2024, no. 9, 82, pp. 1-17. https://doi.org/10.1007/JHEP09(2024)082

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

AU - The LHCb Collaboration

AU - Barter, W.

AU - Betti, F.

AU - Bohare, A.

AU - Buchanan, E.

AU - Clarke, P. E. L.

AU - Currie, R.

AU - Eisenhardt, S.

AU - Farmer, K.

AU - Liu, Y.

AU - Muheim, F.

AU - Needham, M.

AU - Oliva, F.

AU - O'Neil, R.H.

AU - Ozcelik, O.

AU - Richardson-Slipper, M.

AU - Sarpis, G.

AU - Lavra, L. Soares

AU - Vrahas, C.

AU - Williams, M. R. J.

PY - 2024/9/17

Y1 - 2024/9/17

N2 - A measurement of the transverse polarization of the Λ and Λ‾Λ hyperons in pNe fixed-target collisions at sNNsNN = 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 PΛ=0.029±0.019(stat)±0.012(syst),PΛ‾=0.003±0.023(stat)±0.014(syst).PΛ=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‾Λ hyperons in pNe fixed-target collisions at sNNsNN = 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 PΛ=0.029±0.019(stat)±0.012(syst),PΛ‾=0.003±0.023(stat)±0.014(syst).PΛ=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.

KW - Fixed Target Experiments

KW - Polarization

U2 - 10.1007/JHEP09(2024)082

DO - 10.1007/JHEP09(2024)082

M3 - Article

SN - 1126-6708

VL - 2024

SP - 1

EP - 17

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 9

M1 - 82

ER -

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

Abstract

Keywords / Materials (for Non-textual outputs)

Access to Document

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Projects

Experimental Particle Physics at the University of Edinburgh

Experimental Particle Physics at the University of Edinburgh

Beautiful Flavours: Discovering New Physics with B-hadrons and Tau-leptons

Cite this

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