Scholars@Duke publication: Multiplicity dependence of prompt and non-prompt J/ψ production at midrapidity in pp collisions at TeV

Multiplicity dependence of prompt and non-prompt J/ψ production at midrapidity in pp collisions at TeV

Journal articles - Journal Article

Abdallah, DAH; Abualrob, IJ; Acharya, S; Agarwal, K; Aglieri Rinella, G; Aglietta, L; Agrawal, N; Ahammed, Z; Ahmad, S; Ahuja, I; Akbar, Z ...

Published in: Journal of High Energy Physics

July 1, 2026

Published version (DOI)

The yields of prompt and non-prompt J/ψ and the fraction of non-prompt J/ψ are measured at midrapidity (|y| < 0.9) via the dielectron decay channel as a function of the midrapidity charged-particle multiplicity (|η| < 0.9) in pp collisions at TeV. The J/ψ yields and the multiplicity are normalized by their average value in inelastic collisions. The multiplicity-dependent yield ratio between prompt J/ψ and D⁰ is reported. The multiplicity is further divided into three azimuthal regions with respect to the J/ψ momentum: toward the J/ψ emission direction, transverse, or opposite to it. A stronger-than-linear increase of the self-normalized yields is observed for both prompt and non-prompt J/ψ production, with similar trends. This behaviour is also observed in the toward region, while a weaker increase is observed in the transverse and away regions.

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Published In

Journal of High Energy Physics

DOI

10.1007/JHEP07(2026)051

EISSN

1029-8479

Publication Date

July 1, 2026

Volume

2026

Issue

Related Subject Headings

Nuclear & Particles Physics
5107 Particle and high energy physics
5106 Nuclear and plasma physics
4902 Mathematical physics

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Abdallah, D. A. H., Abualrob, I. J., Acharya, S., Agarwal, K., Aglieri Rinella, G., Aglietta, L., … Biro, G. (2026). Multiplicity dependence of prompt and non-prompt J/ψ production at midrapidity in pp collisions at TeV. Journal of High Energy Physics, 2026(7). https://doi.org/10.1007/JHEP07(2026)051

Abdallah, D. A. H., I. J. Abualrob, S. Acharya, K. Agarwal, G. Aglieri Rinella, L. Aglietta, N. Agrawal, et al. “Multiplicity dependence of prompt and non-prompt J/ψ production at midrapidity in pp collisions at TeV.” Journal of High Energy Physics 2026, no. 7 (July 1, 2026). https://doi.org/10.1007/JHEP07(2026)051.

Abdallah DAH, Abualrob IJ, Acharya S, Agarwal K, Aglieri Rinella G, Aglietta L, et al. Multiplicity dependence of prompt and non-prompt J/ψ production at midrapidity in pp collisions at TeV. Journal of High Energy Physics. 2026 Jul 1;2026(7).

Abdallah, D. A. H., et al. “Multiplicity dependence of prompt and non-prompt J/ψ production at midrapidity in pp collisions at TeV.” Journal of High Energy Physics, vol. 2026, no. 7, July 2026. Scopus, doi:10.1007/JHEP07(2026)051.

Abdallah DAH, Abualrob IJ, Acharya S, Agarwal K, Aglieri Rinella G, Aglietta L, Agrawal N, Ahammed Z, Ahmad S, Ahuja I, Akbar Z, Akishina V, Al-Turany M, Alessandro B, Alfarasyi AR, Alfaro Molina R, Ali B, Alici A, Alme J, Alocco G, Alt T, Altsybeev I, Andrei C, Andreou N, Andronic A, Angeletti M, Anguelov V, Antinori F, Antonioli P, Apadula N, Appelshäuser H, Arcelli S, Arnaldi R, Arsene IC, Arslandok M, Augustinus A, Averbeck R, Azmi MD, Baba H, Babu ARJ, Badalà A, Bae J, Bae Y, Baek YW, Bai X, Bailhache R, Bailung Y, Bala R, Baldisseri A, Balis B, Bangalia S, Banoo Z, Barbasova V, Barile F, Barioglio L, Barlou M, Barman B, Barnaföldi GG, Barnby LS, Barreau E, Barret V, Barreto L, Barth K, Bartsch E, Bastid N, Batigne G, Battistini D, Batyunya B, Baudino L, Bauri D, Bazo Alba JL, Bearden IG, Becht P, Behera D, Behera S, Behling MAC, Belikov I, Bella VD, Bellini F, Bellwied R, Beltran LGE, Beltran YAV, Bencedi G, Benchikhi O, Bensaoula A, Beole S, Berdnikova A, Bergmann L, Bernardinis L, Betev L, Bhaduri PP, Bhalla T, Bhasin A, Bhattacharjee B, Bianchi L, Bielčík J, Bielčíková J, Bilandzic A, Binoy A, Biro G. Multiplicity dependence of prompt and non-prompt J/ψ production at midrapidity in pp collisions at TeV. Journal of High Energy Physics. 2026 Jul 1;2026(7).

Published In

Journal of High Energy Physics

DOI

10.1007/JHEP07(2026)051

EISSN

1029-8479

Publication Date

July 1, 2026

Volume

2026

Issue

Related Subject Headings

Nuclear & Particles Physics
5107 Particle and high energy physics
5106 Nuclear and plasma physics
4902 Mathematical physics