| |  Online-Ressource |
|---|
| Verfasst von: | Aamodt, Kenneth [VerfasserIn]  |
|---|
| | Busch, Oliver [VerfasserIn] |
|---|
| | Böttger, Stefan [VerfasserIn] |
|---|
| | Breitner, Timo [VerfasserIn] |
|---|
| | Engel, Heiko [VerfasserIn] |
|---|
| | Glässel, Peter [VerfasserIn] |
|---|
| | Grajcarek, Robert [VerfasserIn] |
|---|
| | Herrmann, Norbert [VerfasserIn] |
|---|
| | Kebschull, Udo [VerfasserIn] |
|---|
| | Klein, Jochen [VerfasserIn] |
|---|
| | Krawutschke, Tobias [VerfasserIn] |
|---|
| | Kweon, MinJung [VerfasserIn] |
|---|
| | Lara Martinez, Camilo Ernesto [VerfasserIn] |
|---|
| | Lohner, Daniel [VerfasserIn] |
|---|
| | Mercado Pérez, Jorge [VerfasserIn] |
|---|
| | Oyama, Ken [VerfasserIn] |
|---|
| | Pachmayer, Yvonne C. [VerfasserIn] |
|---|
| | Radomski, Sylwester [VerfasserIn] |
|---|
| | Reygers, Klaus [VerfasserIn] |
|---|
| | Schicker, Rainer [VerfasserIn] |
|---|
| | Schweda, Kai [VerfasserIn] |
|---|
| | Stachel, Johanna [VerfasserIn] |
|---|
| | Ulrich, Joachim [VerfasserIn] |
|---|
| | Vallero, Sara [VerfasserIn] |
|---|
| | Wiechula, Jens [VerfasserIn] |
|---|
| | Windelband, Bernd [VerfasserIn] |
|---|
| | Zelnicek, Pierre [VerfasserIn] |
|---|
| | Zimmermann, Alice [VerfasserIn] |
|---|
| Titel: | Harmonic decomposition of two particle angular correlations in Pb-pb collisions at √sNN=2.76 TeV* |
|---|
| Verf.angabe: | ALICE Collaboration |
|---|
| E-Jahr: | 2012 |
|---|
| Jahr: | 28 January 2012 |
|---|
| Umfang: | 16 S. |
|---|
| Fussnoten: | The ALICE Collaboration: K. Aamodt, O. Busch, S. Böttger, T. Breitner, H. Engel, P. Glässel, R.Grajcarek, N. Herrmann, U. Kebschull, J. Klein, T. Krawutschke, M.J. Kweon, C. Lara, D. Lohner, J. Mercado Pérez, K. Oyama, Y. Pachmayer, S. Radomski, K. Reygers, R. Schicker, K. Schweda, J. Stachel, J. Ulrich, S. Vallero, J. Wiechula, B. Windelband, P. Zelnicek, A. Zimmermann ; Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt ; Gesehen am 02.11.2018 |
|---|
| Titel Quelle: | Enthalten in: Physics letters / B |
|---|
| Ort Quelle: | Amsterdam : North-Holland Publ., 1967 |
|---|
| Jahr Quelle: | 2012 |
|---|
| Band/Heft Quelle: | 708(2012), 3, Seite 249-264 |
|---|
| ISSN Quelle: | 1873-2445 |
|---|
| Abstract: | Angular correlations between unidentified charged trigger (t) and associated (a) particles are measured by the ALICE experiment in Pb-Pb collisions at sNN=2.76 TeV for transverse momenta 0.25<pTt,a<15 GeV/c, where pTt>pTa. The shapes of the pair correlation distributions are studied in a variety of collision centrality classes between 0 and 50% of the total hadronic cross section for particles in the pseudorapidity interval |η|<1.0. Distributions in relative azimuth Δϕ≡ϕt−ϕa are analyzed for |Δη|≡|ηt−ηa|>0.8, and are referred to as “long-range correlations”. Fourier components VnΔ≡〈cos(nΔϕ)〉 are extracted from the long-range azimuthal correlation functions. If particle pairs are correlated to one another through their individual correlation to a common symmetry plane, then the pair anisotropy VnΔ(pTt,pTa) is fully described in terms of single-particle anisotropies vn(pT) as VnΔ(pTt,pTa)=vn(pTt)vn(pTa). This expectation is tested for 1⩽n⩽5 by applying a global fit of all VnΔ(pTt,pTa) to obtain the best values vn{GF}(pT). It is found that for 2⩽n⩽5, the fit agrees well with data up to pTa∼3-4 GeV/c, with a trend of increasing deviation as pTt and pTa are increased or as collisions become more peripheral. This suggests that no pair correlation harmonic can be described over the full 0.25<pT<15 GeV/c range using a single vn(pT) curve; such a description is however approximately possible for 2⩽n⩽5 when pTa<4 GeV/c. For the n=1 harmonic, however, a single v1(pT) curve is not obtained even within the reduced range pTa<4 GeV/c. |
|---|
| DOI: | doi:10.1016/j.physletb.2012.01.060 |
|---|
| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: http://dx.doi.org/10.1016/j.physletb.2012.01.060 |
|---|
| | Volltext: http://www.sciencedirect.com/science/article/pii/S0370269312001013 |
|---|
| | DOI: https://doi.org/10.1016/j.physletb.2012.01.060 |
|---|
| Datenträger: | Online-Ressource |
|---|
| Sprache: | eng |
|---|
| K10plus-PPN: | 1582533954 |
|---|
| Verknüpfungen: | → Zeitschrift |
|---|
Harmonic decomposition of two particle angular correlations in Pb-pb collisions at √sNN=2.76 TeV* / Aamodt, Kenneth [VerfasserIn]; 28 January 2012 (Online-Ressource)
