Measurement of χ<inf>c1</inf>(3872) production in proton-proton collisions at √s = 8 and 13 TeV
Authors
Aaij, R
Abdelmotteleb, ASW
Abellán Beteta, C
Abudinen Gallego, FJ
Ackernley, T
Adeva, B
Adinolfi, M
Afsharnia, H
Agapopoulou, C
Aidala, CA
Aiola, S
Ajaltouni, Z
Akar, S
Albrecht, J
Alessio, F
Alexander, M
Alfonso Albero, A
Aliouche, Z
Alkhazov, G
Alvarez Cartelle, P
Amato, S
Amey, JL
Amhis, Y
An, L
Anderlini, L
Andreianov, A
Andreotti, M
Archilli, F
Artamonov, A
Artuso, M
Arzymatov, K
Aslanides, E
Atzeni, M
Audurier, B
Bachmann, S
Bachmayer, M
Back, JJ
Baladron Rodriguez, P
Balagura, V
Baldini, W
Baptista Leite, J
Barbetti, M
Barlow, RJ
Barsuk, S
Barter, W
Bartolini, M
Baryshnikov, F
Basels, JM
Bashir, S
Bassi, G
Batsukh, B
Battig, A
Bay, A
Beck, A
Becker, M
Bedeschi, F
Bediaga, I
Beiter, A
Belavin, V
Belin, S
Bellee, V
Belous, K
Belov, I
Belyaev, I
Bencivenni, G
Ben-Haim, E
Berezhnoy, A
Bernet, R
Berninghoff, D
Bernstein, HC
Bertella, C
Bertolin, A
Betancourt, C
Betti, F
Bezshyiko, I
Bhasin, S
Bhom, J
Bian, L
Bieker, MS
Bifani, S
Billoir, P
Birch, M
Bishop, FCR
Bitadze, A
Bizzeti, A
Bjørn, M
Blago, MP
Blake, T
Blanc, F
Blusk, S
Bobulska, D
Boelhauve, JA
Boente Garcia, O
Boettcher, T
Boldyrev, A
Bondar, A
Bondar, N
Borghi, S
Borisyak, M
Borsato, M
Publication Date
2022-01-24Journal Title
Journal of High Energy Physics
ISSN
0031-9007
Publisher
American Physical Society (APS)
Volume
2022
Issue
1
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Aaij, R., Abdelmotteleb, A., Abellán Beteta, C., Abudinen Gallego, F., Ackernley, T., Adeva, B., Adinolfi, M., et al. (2022). Measurement of χ<inf>c1</inf>(3872) production in proton-proton collisions at √s = 8 and 13 TeV. Journal of High Energy Physics, 2022 (1) https://doi.org/10.1007/JHEP01(2022)131
Abstract
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 $\sqrt{s}=8$ 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, $p_{\rm T}$, and rapidity, $y$, in the kinematic range $4 < p_{\rm T}
< 20$ GeV/$c$ and $2.0 < y < 4.5$. The prompt ratio is found to increase with
$p_{\rm T}$ independently of $y$. The double-differential cross-section ratio
of $\chi_{c1}(3872)$ relative to $\psi(2S)$ mesons between 13 and 8 TeV is also
measured for the prompt component and observed to be consistent with unity,
independent of $p_{\rm T}$ and centre-of-mass energy.
Keywords
Regular Article - Experimental Physics, Hadron-Hadron Scattering
Sponsorship
Science and Technology Facilities Council (ST/L003392/1)
Identifiers
jhep01(2022)131, 17623
External DOI: https://doi.org/10.1007/JHEP01(2022)131
This record's URL: https://www.repository.cam.ac.uk/handle/1810/336470
Rights
Licence:
http://creativecommons.org/licenses/by/4.0/
Statistics
Total file downloads (since January 2020). For more information on metrics see the
IRUS guide.