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Measuring K0SK± interactions using Pb-Pb collisions at √sNN=2.76 TeV

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We present the first ever measurements of femtoscopic correlations between the KS0 and K± particles. The analysis was performed on the data from Pb-Pb collisions at sNN=2.76 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proce...

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Main Authors: Acharya, Shreyasi (Author) , Angelov, Venelin (Author) , Arslandok, Mesut (Author) , Danisch, Meike (Author) , Deisting, Alexander (Author) , Glässel, Peter (Author) , Kim, Jiyoung (Author) , Klewin, Sebastian (Author) , Leardini, Lucia (Author) , Mercado Pérez, Jorge (Author) , Oeschler, Helmut (Author) , Ohlson, Alice (Author) , Pachmayer, Yvonne C. (Author) , Reygers, Klaus (Author) , Schicker, Rainer (Author) , Schmidt, Marten Ole (Author) , Schuchmann, Simone (Author) , Stachel, Johanna (Author) , Weiser, Dennis (Author) , Wilkinson, Jeremy (Author) , Windelband, Bernd (Author) , Zimmermann, Alice (Author) , Beck, Hans (Author) , Bock, Friederike (Author) , Völkl, Martin (Author)
Corporate Author: ALICE (Author)
Format: Article (Journal)
Language:English
Published: 8 September 2017
In: Physics letters
Year: 2017, Volume: 774, Pages: 64-77
ISSN:1873-2445
DOI:10.1016/j.physletb.2017.09.009
Online Access:Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1016/j.physletb.2017.09.009
Verlag, kostenfrei, Volltext: http://www.sciencedirect.com/science/article/pii/S0370269317307074
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Author Notes:ALICE Collaboration
Description
Summary:We present the first ever measurements of femtoscopic correlations between the KS0 and K± particles. The analysis was performed on the data from Pb-Pb collisions at sNN=2.76 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding via the a0(980) resonance. The extracted kaon source radius and correlation strength parameters for KS0K− are found to be equal within the experimental uncertainties to those for KS0K+. Comparing the results of the present study with those from published identical-kaon femtoscopic studies by ALICE, mass and coupling parameters for the a0 resonance are tested. Our results are also compatible with the interpretation of the a0 having a tetraquark structure instead of that of a diquark.
Item Description:ALICE Collaboration: S. Acharya, V. Anguelov, M. Arslandok, H. Beck, F. Bock, 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, K. Reygers, R. Schicker, M.O. Schmidt, S. Schuchmann, J. Stachel, M.A. Völkl, D.F. Weiser, J. Wilkinson, B. Windelband, A. Zimmermann [und weitere]
Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt
Im Titel sind die Zeichen "+" und "-" untereinander geschrieben und hochgestellt
Im Titel sind die Buchstaben "0" und "S" untereinander geschrieben: "0" hochgestellt, "S" tiefgestellt
Gesehen am 31.05.2019
Physical Description:Online Resource
ISSN:1873-2445
DOI:10.1016/j.physletb.2017.09.009

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