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Production of deuterons, tritons, 3He nuclei, and their antinuclei in pp collisions at √s=0.9, 2.76, and 7 TeV

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Invariant differential yields of deuterons and antideuterons in pp collisions at √s = 0.9, 2.76 and 7 TeV and the yields of tritons, 3He nuclei, and their antinuclei at √s = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse m...

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Hauptverfasser: Acharya, Shreyasi (VerfasserIn) , Angelov, Venelin (VerfasserIn) , Arslandok, Mesut (VerfasserIn) , Beck, Hans (VerfasserIn) , Borissov, Alexander (VerfasserIn) , Danisch, Meike (VerfasserIn) , Glässel, Peter (VerfasserIn) , Kim, Jiyoung (VerfasserIn) , Köhler, Markus Konrad (VerfasserIn) , Klewin, Sebastian (VerfasserIn) , Leardini, Lucia (VerfasserIn) , Ohlson, Alice (VerfasserIn) , Pachmayer, Yvonne C. (VerfasserIn) , Reygers, Klaus (VerfasserIn) , Schicker, Rainer (VerfasserIn) , Schmidt, Marten Ole (VerfasserIn) , Stachel, Johanna (VerfasserIn) , Weiser, Dennis (VerfasserIn) , Windelband, Bernd (VerfasserIn)
Körperschaft: ALICE (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 21 February 2018
In: Physical review
Year: 2018, Jahrgang: 97, Heft: 2
ISSN:2469-9993
DOI:10.1103/PhysRevC.97.024615
Online-Zugang:Verlag, Volltext: https://doi.org/10.1103/PhysRevC.97.024615
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevC.97.024615
Volltext
Verfasserangaben:S. Acharya et al.* (ALICE Collaboration)
Beschreibung
Zusammenfassung:Invariant differential yields of deuterons and antideuterons in pp collisions at √s = 0.9, 2.76 and 7 TeV and the yields of tritons, 3He nuclei, and their antinuclei at √s = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum (pT) range in the rapidity interval |y|<0.5, extending both the energy and the pT reach of previous measurements up to 3 GeV/c for A=2 and 6 GeV/c for A=3. The coalescence parameters of (anti)deuterons and 3¯¯¯¯He nuclei exhibit an increasing trend with pT and are found to be compatible with measurements in pA collisions at low pT and lower energies. The integrated yields decrease by a factor of about 1000 for each increase of the mass number with one (anti)nucleon. Furthermore, the deuteron-to-proton ratio is reported as a function of the average charged particle multiplicity at different center-of-mass energies.
Beschreibung:S. Acharya, V. Anguelov, M. Arslandok, H. Bock, A. Borissov, M.C. Danisch, P. Glässel, J. Kim, M.K. Köhler, S. Klewin, L. Leardini, A. Ohlson, Y. Pachmayer, K. Reygers, R. Schicker, M.O. Schmidt, J. Stachel, D.F. Weiser, B. Windelband [und weitere] (ALICE Collaboration)
Gesehen am 04.07.2019
Beschreibung:Online Resource
ISSN:2469-9993
DOI:10.1103/PhysRevC.97.024615

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