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| Verfasst von: | Acharya, Shreyasi [VerfasserIn]  |
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| | Angelov, Venelin [VerfasserIn] |
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| | Arslandok, Mesut [VerfasserIn] |
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| | Danisch, Meike [VerfasserIn] |
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| | Feuillard, Victor [VerfasserIn] |
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| | Glässel, Peter [VerfasserIn] |
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| | Kim, Jiyoung [VerfasserIn] |
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| | Kim, Minjung [VerfasserIn] |
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| | Klewin, Sebastian [VerfasserIn] |
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| | Köhler, Markus Konrad [VerfasserIn] |
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| | Leardini, Lucia [VerfasserIn] |
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| | Ohlson, Alice [VerfasserIn] |
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| | Pachmayer, Yvonne C. [VerfasserIn] |
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| | Reygers, Klaus [VerfasserIn] |
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| | Schicker, Rainer [VerfasserIn] |
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| | Schmah, Alexander [VerfasserIn] |
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| | Schmidt, Marten Ole [VerfasserIn] |
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| | Stachel, Johanna [VerfasserIn] |
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| | Weiser, Dennis [VerfasserIn] |
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| | Windelband, Bernd [VerfasserIn] |
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| | Köhler, Markus Konrad [VerfasserIn] |
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| Titel: | Multiplicity dependence of (anti-)deuteron production in pp collisions at √s=7 TeV |
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| Körperschaft: | ALICE (Körperschaft) [VerfasserIn] |
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| Verf.angabe: | ALICE Collaboration |
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| E-Jahr: | 2019 |
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| Jahr: | 22 May 2019 |
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| Umfang: | 14 S. |
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| Fussnoten: | Im Titel steht der Buchstabe s unter dem Wurzelsymbol ; ALICE Collaboration: S. Acharya, V. Anguelov, M. Arslandok, M.C. Danisch, V.J.G. Feuillard, P. Glässel, J. Kim, M. Kim, S. Klewin, M.K. Köhler, L. Leardini, N.A. Martin, A. Ohlson, Y. Pachmayer, K. Reygers, R. Schicker, A. Schmah, M.O. Schmidt, J. Stachel, D.F. Weiser, B. Windelband [und weitere] ; Gesehen am 11.07.2019 |
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| Titel Quelle: | Enthalten in: Physics letters / B |
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| Ort Quelle: | Amsterdam : North-Holland Publ., 1967 |
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| Jahr Quelle: | 2019 |
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| Band/Heft Quelle: | 794(2019), Seite 50-63 |
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| ISSN Quelle: | 1873-2445 |
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| Abstract: | In this letter, the production of deuterons and anti-deuterons in pp collisions at s=7 TeV is studied as a function of the charged-particle multiplicity density at mid-rapidity with the ALICE detector at the LHC. Production yields are measured at mid-rapidity in five multiplicity classes and as a function of the deuteron transverse momentum (pT). The measurements are discussed in the context of hadron-coalescence models. The coalescence parameter B2, extracted from the measured spectra of (anti-)deuterons and primary (anti-)protons, exhibits no significant pT-dependence for pT<3 GeV/c, in agreement with the expectations of a simple coalescence picture. At fixed transverse momentum per nucleon, the B2 parameter is found to decrease smoothly from low multiplicity pp to Pb-Pb collisions, in qualitative agreement with more elaborate coalescence models. The measured mean transverse momentum of (anti-)deuterons in pp is not reproduced by the Blast-Wave model calculations that simultaneously describe pion, kaon and proton spectra, in contrast to central Pb-Pb collisions. The ratio between the pT-integrated yield of deuterons to protons, d/p, is found to increase with the charged-particle multiplicity, as observed in inelastic pp collisions at different centre-of-mass energies. The d/p ratios are reported in a wide range, from the lowest to the highest multiplicity values measured in pp collisions at the LHC. |
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| DOI: | doi:10.1016/j.physletb.2019.05.028 |
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| 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: https://doi.org/10.1016/j.physletb.2019.05.028 |
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| | Volltext: http://www.sciencedirect.com/science/article/pii/S0370269319303387 |
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| | DOI: https://doi.org/10.1016/j.physletb.2019.05.028 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 166904825X |
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| Verknüpfungen: | → Zeitschrift |
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Multiplicity dependence of (anti-)deuteron production in pp collisions at √s=7 TeV / Acharya, Shreyasi [VerfasserIn]; 22 May 2019 (Online-Ressource)
