Details

Autor(en) / Beteiligte

• Adam, J
• Adamová, D
• Aggarwal, M. M
• Aglieri Rinella, G
• Agnello, M
• Agrawal, N
• Ahammed, Z

Titel

Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at [Formula omitted] TeV

Ist Teil von

• The European physical journal. C, Particles and fields, 2017-08, Vol.77 (8), p.1-17

Ort / Verlag

Heidelberg: Springer

Erscheinungsjahr

2017

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Two-particle angular correlations were measured in pp collisions at [Formula omitted] TeV for pions, kaons, protons, and lambdas, for all particle/anti-particle combinations in the pair. Data for mesons exhibit an expected peak dominated by effects associated with mini-jets and are well reproduced by general purpose Monte Carlo generators. However, for baryon-baryon and anti-baryon-anti-baryon pairs, where both particles have the same baryon number, a near-side anti-correlation structure is observed instead of a peak. This effect is interpreted in the context of baryon production mechanisms in the fragmentation process. It currently presents a challenge to Monte Carlo models and its origin remains an open question.