Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at √s=7 TeV
Two-particle angular correlations were measured in pp collisions at s√=7s=7\sqrt{s} = 7 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...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
24 August 2017
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| In: |
The European physical journal. C, Particles and fields
Year: 2017, Volume: 77, Issue: 8 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-017-5129-6 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1140/epjc/s10052-017-5129-6 Verlag, Volltext: https://doi.org/10.1140/epjc/s10052-017-5129-6 
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| Author Notes: | ALICE Collaboration* |
MARC
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| 245 | 1 | 0 | |a Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at √s=7 TeV |c ALICE Collaboration* |
| 246 | 3 | 0 | |a sqrt(s) |
| 246 | 3 | 3 | |a Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at square root s=7 TeV |
| 264 | 1 | |c 24 August 2017 | |
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| 500 | |a ALICE Collaboration: J. Adam, V. Anguelov, M. Arslandok, M.C. Danisch, A. Deisting, P. Glässel, J. Kim, S. Klewin, M.L. Knichel, L. Leardini, J. Mercado Pérez, H. Oeschler, A. Ohlson, Y. Pachmayer, F. Reidt, K. Reygers, R. Schicker, J. Stachel, J.H. Stiller, M.A. Völkl, D.F. Weiser, J. Wilkinson, B. Windelband, A. Zimmermann [und weitere] | ||
| 500 | |a Gesehen am 17.10.2018 | ||
| 520 | |a Two-particle angular correlations were measured in pp collisions at s√=7s=7\sqrt{s} = 7 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. | ||
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