J/[psi] production as a function of charged particle multiplicity in pp collisions at √s=7 TeV*
The ALICE Collaboration reports the measurement of the relative J/ψ yield as a function of charged particle pseudorapidity density dNch/dη in pp collisions at s=7 TeV at the LHC. J/ψ particles are detected for pt>0, in the rapidity interval |y|<0.9 via decay into e+e−, and in the interval 2.5&...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
25 April 2012
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| In: |
Physics letters
Year: 2012, Volume: 712, Issue: 3, Pages: 165-175 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2012.04.052 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1016/j.physletb.2012.04.052 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269312004674 
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| Author Notes: | ALICE Collaboration |
MARC
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| 245 | 1 | 0 | |a J/[psi] production as a function of charged particle multiplicity in pp collisions at √s=7 TeV* |c ALICE Collaboration |
| 246 | 3 | 0 | |a ψ, sqrt |
| 246 | 3 | 3 | |a J/psi production as a function of charged particle multiplicity in pp collisions at square root s = 7 TeV |
| 264 | 1 | |c 25 April 2012 | |
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| 500 | |a Im Titel wird "psi" als griechischer Buchstabe dargestellt | ||
| 500 | |a ALICE Collaboration: B. Abelev, V. Anguelov, O. Busch, P. Glässel, R.Grajcarek, N. Herrmann, T. Krawutschke, M.J. Kweon, D. Lohner, X. Lu, J. Mercado Pérez, K. Oyama, Y. Pachmayer, S. Radomski, K. Reygers, R. Schicker, K. Schweda, J. Stachel, J. Ulrich, S. Vallero, Y. Wang, J. Wiechula, A. Zimmermann [und weitere] | ||
| 500 | |a Gesehen am 30.11.2018 | ||
| 520 | |a The ALICE Collaboration reports the measurement of the relative J/ψ yield as a function of charged particle pseudorapidity density dNch/dη in pp collisions at s=7 TeV at the LHC. J/ψ particles are detected for pt>0, in the rapidity interval |y|<0.9 via decay into e+e−, and in the interval 2.5<y<4.0 via decay into μ+μ− pairs. An approximately linear increase of the J/ψ yields normalized to their event average (dNJ/ψ/dy)/〈dNJ/ψ/dy〉 with (dNch/dη)/〈dNch/dη〉 is observed in both rapidity ranges, where dNch/dη is measured within |η|<1 and pt>0. In the highest multiplicity interval with 〈dNch/dη(bin)〉=24.1, corresponding to four times the minimum bias multiplicity density, an enhancement relative to the minimum bias J/ψ yield by a factor of about 5 at 2.5<y<4 (8 at |y|<0.9) is observed. | ||
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