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Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at √s=7 TeV

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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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Bibliographische Detailangaben
Hauptverfasser: Adam, Jaroslav (VerfasserIn) , Angelov, Venelin (VerfasserIn) , Arslandok, Mesut (VerfasserIn) , Danisch, Meike (VerfasserIn) , Deisting, Alexander (VerfasserIn) , Glässel, Peter (VerfasserIn) , Kim, Jiyoung (VerfasserIn) , Klewin, Sebastian (VerfasserIn) , Knichel, Michael Linus (VerfasserIn) , Leardini, Lucia (VerfasserIn) , Mercado Pérez, Jorge (VerfasserIn) , Oeschler, Helmut (VerfasserIn) , Ohlson, Alice (VerfasserIn) , Pachmayer, Yvonne C. (VerfasserIn) , Reidt, Felix (VerfasserIn) , Reygers, Klaus (VerfasserIn) , Schicker, Rainer (VerfasserIn) , Stachel, Johanna (VerfasserIn) , Stiller, Johannes Hendrik (VerfasserIn) , Völkl, Martin (VerfasserIn) , Weiser, Dennis (VerfasserIn) , Wilkinson, Jeremy (VerfasserIn) , Windelband, Bernd (VerfasserIn) , Zimmermann, Alice (VerfasserIn)
Körperschaft: ALICE (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 24 August 2017
In: The European physical journal. C, Particles and fields
Year: 2017, Jahrgang: 77, Heft: 8
ISSN:1434-6052
DOI:10.1140/epjc/s10052-017-5129-6
Online-Zugang: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
Volltext
Verfasserangaben:ALICE Collaboration*
Beschreibung
Zusammenfassung: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.
Beschreibung: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]
Gesehen am 17.10.2018
Beschreibung:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-017-5129-6

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