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  4. Measurement of chi(c1) (3872) production in proton-proton collisions at root s=8 and 13 TeV
 
research article

Measurement of chi(c1) (3872) production in proton-proton collisions at root s=8 and 13 TeV

Aaij, R.
•
Abdelmotteleb, A. S. W.
•
Beteta, C. Abellan
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January 24, 2022
Journal of High Energy Physics

The production cross-section of the chi(c1)(3872) state relative to the psi(2S) meson is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of root s = 8 and 13 TeV, corresponding to integrated luminosities of 2.0 and 5.4 fb(-1), respectively. The two mesons are reconstructed in the J/psi pi(+) pi(-) final state. The ratios of the prompt and nonprompt chi(c1)(3872) to psi(2S) production cross-sections are measured as a function of transverse momentum, p(T), and rapidity, y, of the chi(c1)(3872) and psi(2S) states, in the kinematic range 4 < p(T) < 20 GeV/c and 2.0 < y < 4.5. The prompt ratio is found to increase with pT , independently of y. For the prompt component, the double ratio of the chi(c1)(3872) and psi(2S) production cross-sections between 13 and 8 TeV is observed to be consistent with unity, independent of p(T) and centre-of-mass energy.

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Type
research article
DOI
10.1007/JHEP01(2022)131
Web of Science ID

WOS:000749197000001

Author(s)
Aaij, R.
Abdelmotteleb, A. S. W.
Beteta, C. Abellan
Gallego, F. J. Abudinen
Ackernley, T.
Adeva, B.
Adinolfi, M.
Afsharnia, H.
Agapopoulou, C.
Aidala, C. A.
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Date Issued

2022-01-24

Publisher

Springer Nature

Published in
Journal of High Energy Physics
Issue

1

Start page

131

Subjects

Physics, Particles & Fields

•

Physics

•

hadron-hadron scattering

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPHE  
Available on Infoscience
February 14, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/185457
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