Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV

LHCb collaboration; R.H. O'Neil

doi:10.1007/JHEP01(2022)131

Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV

LHCb collaboration, R.H. O'Neil

School of Physics and Astronomy

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

Abstract / Description of output

The production cross-section of the χc1(3872) state relative to the ψ(2S) me-
son is measured using proton-proton collision data collected with the LHCb experiment
at centre-of-mass energies of √s = 8 and 13 TeV, corresponding to integrated luminosi-
ties of 2.0 and 5.4 fb−1, respectively. The two mesons are reconstructed in the J/ψπ+π−
final state. The ratios of the prompt and nonprompt χc1(3872) to ψ(2S) production cross-
sections are measured as a function of transverse momentum, pT, and rapidity, y, of the
χc1(3872) and ψ(2S) states, in the kinematic range 4 < pT < 20 GeV/c and 2.0 < y < 4.5.
The prompt ratio is found to increase with pT, independently of y. For the prompt compo-
nent, the double ratio of the χc1(3872) and ψ(2S) production cross-sections between 13 and
8 TeV is observed to be consistent with unity, independent of pT and centre-of-mass energy.

Original language	English
Article number	131
Pages (from-to)	1-26
Number of pages	26
Journal	Journal of High Energy Physics
Volume	2022
Issue number	1
DOIs	https://doi.org/10.1007/JHEP01(2022)131
Publication status	Published - 24 Jan 2022

Keywords / Materials (for Non-textual outputs)

Hadron-Hadron Scattering

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10.1007/JHEP01(2022)131Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2109.07360

2 Finished
5 Active

Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C.
1/04/23 → 30/09/25
Project: Research
Next generation photodetectors for future applications
Oliva, F.
1/12/22 → 30/11/25
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C.
1/10/22 → 30/09/25
Project: Research

Cite this

@article{327adda7b5354f2fb9300dcda8cfff9c,

title = "Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV",

abstract = "The production cross-section of the χc1(3872) state relative to the ψ(2S) me-son is measured using proton-proton collision data collected with the LHCb experimentat centre-of-mass energies of √s = 8 and 13 TeV, corresponding to integrated luminosi-ties of 2.0 and 5.4 fb−1, respectively. The two mesons are reconstructed in the J/ψπ+π−final state. The ratios of the prompt and nonprompt χc1(3872) to ψ(2S) production cross-sections are measured as a function of transverse momentum, pT, and rapidity, y, of theχc1(3872) and ψ(2S) states, in the kinematic range 4 < pT < 20 GeV/c and 2.0 < y < 4.5.The prompt ratio is found to increase with pT, independently of y. For the prompt compo-nent, the double ratio of the χc1(3872) and ψ(2S) production cross-sections between 13 and8 TeV is observed to be consistent with unity, independent of pT and centre-of-mass energy.",

keywords = "Hadron-Hadron Scattering",

author = "{LHCb collaboration} and William Barter and P.E.L. Clarke and S. Gambetta and F. Muheim and M. Needham and Mark Williams and Federico Betti and Robert Currie and S. Eisenhardt and Lavra, {Lais Soares} and Oliva Federica and Gediminas Sarpis and R.H. O'Neil",

year = "2022",

month = jan,

day = "24",

doi = "10.1007/JHEP01(2022)131",

language = "English",

volume = "2022",

pages = "1--26",

journal = " Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer",

number = "1",

}

TY - JOUR

T1 - Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV

AU - LHCb collaboration

AU - Barter, William

AU - Clarke, P.E.L.

AU - Gambetta, S.

AU - Muheim, F.

AU - Needham, M.

AU - Williams, Mark

AU - Betti, Federico

AU - Currie, Robert

AU - Eisenhardt, S.

AU - Lavra, Lais Soares

AU - Federica, Oliva

AU - Sarpis, Gediminas

AU - O'Neil, R.H.

PY - 2022/1/24

Y1 - 2022/1/24

N2 - The production cross-section of the χc1(3872) state relative to the ψ(2S) me-son is measured using proton-proton collision data collected with the LHCb experimentat centre-of-mass energies of √s = 8 and 13 TeV, corresponding to integrated luminosi-ties of 2.0 and 5.4 fb−1, respectively. The two mesons are reconstructed in the J/ψπ+π−final state. The ratios of the prompt and nonprompt χc1(3872) to ψ(2S) production cross-sections are measured as a function of transverse momentum, pT, and rapidity, y, of theχc1(3872) and ψ(2S) states, in the kinematic range 4 < pT < 20 GeV/c and 2.0 < y < 4.5.The prompt ratio is found to increase with pT, independently of y. For the prompt compo-nent, the double ratio of the χc1(3872) and ψ(2S) production cross-sections between 13 and8 TeV is observed to be consistent with unity, independent of pT and centre-of-mass energy.

AB - The production cross-section of the χc1(3872) state relative to the ψ(2S) me-son is measured using proton-proton collision data collected with the LHCb experimentat centre-of-mass energies of √s = 8 and 13 TeV, corresponding to integrated luminosi-ties of 2.0 and 5.4 fb−1, respectively. The two mesons are reconstructed in the J/ψπ+π−final state. The ratios of the prompt and nonprompt χc1(3872) to ψ(2S) production cross-sections are measured as a function of transverse momentum, pT, and rapidity, y, of theχc1(3872) and ψ(2S) states, in the kinematic range 4 < pT < 20 GeV/c and 2.0 < y < 4.5.The prompt ratio is found to increase with pT, independently of y. For the prompt compo-nent, the double ratio of the χc1(3872) and ψ(2S) production cross-sections between 13 and8 TeV is observed to be consistent with unity, independent of pT and centre-of-mass energy.

KW - Hadron-Hadron Scattering

U2 - 10.1007/JHEP01(2022)131

DO - 10.1007/JHEP01(2022)131

M3 - Article

SN - 1029-8479

VL - 2022

SP - 1

EP - 26

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 1

M1 - 131

ER -

Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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Projects

Experimental Particle Physics at the University of Edinburgh

Next generation photodetectors for future applications

Experimental Particle Physics at the University of Edinburgh

Cite this