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| Verfasst von: | Adam, Jaroslav [VerfasserIn]  |
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| | Angelov, Venelin [VerfasserIn] |
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| | Busch, Oliver [VerfasserIn] |
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| | Danisch, Meike [VerfasserIn] |
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| | Deisting, Alexander [VerfasserIn] |
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| | Fleck, Martin [VerfasserIn] |
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| | Glässel, Peter [VerfasserIn] |
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| | Klewin, Sebastian [VerfasserIn] |
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| | Knichel, Michael Linus [VerfasserIn] |
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| | Leardini, Lucia [VerfasserIn] |
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| | Mercado Pérez, Jorge [VerfasserIn] |
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| | Oyama, Ken [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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| | Stachel, Johanna [VerfasserIn] |
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| | Stiller, Johannes Hendrik [VerfasserIn] |
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| | Völkl, Martin [VerfasserIn] |
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| | Weiser, Dennis [VerfasserIn] |
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| | Wilkinson, Jeremy [VerfasserIn] |
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| | Windelband, Bernd [VerfasserIn] |
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| | Winn, Michael [VerfasserIn] |
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| | Zimmermann, Alice [VerfasserIn] |
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| Titel: | Particle identification in ALICE |
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| Titelzusatz: | a Bayesian approach |
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| Körperschaft: | ALICE [VerfasserIn] |
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| Verf.angabe: | The ALICE Collaboration* |
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| E-Jahr: | 2016 |
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| Jahr: | 25 May 2016 |
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| Umfang: | 24 S. |
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| Fussnoten: | *The ALICE Collaboration: J. Adam, V. Anguelov, O. Busch, M.C. Danisch, A. Deisting, M.G. Fleck, P. Glaessel, S. Klewin, M.L. Knichel, L. Leardini, J. Mercado Perez, K. Oyama, Y. Pachmayer, K. Reygers, R. Schicker, J. Stachel, J. Stiller, M.A. Voelkl, D.F. Weiser, J. Wilkinson, B. Windelband, M. Winn, A. Zimmermann [und sehr viele weitere Personen] ; Gesehen am 20.07.2020 |
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| Titel Quelle: | Enthalten in: The European physical journal / Plus |
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| Ort Quelle: | Berlin : Springer, 2011 |
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| Jahr Quelle: | 2016 |
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| Band/Heft Quelle: | 131(2016,5) Artikel-Nummer 168, 24 Seiten |
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| ISSN Quelle: | 2190-5444 |
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| Abstract: | We present a Bayesian approach to particle identification (PID) within the ALICE experiment. The aim is to more effectively combine the particle identification capabilities of its various detectors. After a brief explanation of the adopted methodology and formalism, the performance of the Bayesian PID approach for charged pions, kaons and protons in the central barrel of ALICE is studied. PID is performed via measurements of specific energy loss ( dE/dx) and time of flight. PID efficiencies and misidentification probabilities are extracted and compared with Monte Carlo simulations using high-purity samples of identified particles in the decay channels K0S→π−π+, ϕ→K−K+, and Λ→pπ− in p-Pb collisions at sNN−−−−√=5.02 TeV. In order to thoroughly assess the validity of the Bayesian approach, this methodology was used to obtain corrected pT spectra of pions, kaons, protons, and D0 mesons in pp collisions at s√=7 TeV. In all cases, the results using Bayesian PID were found to be consistent with previous measurements performed by ALICE using a standard PID approach. For the measurement of D0→K−π+, it was found that a Bayesian PID approach gave a higher signal-to-background ratio and a similar or larger statistical significance when compared with standard PID selections, despite a reduced identification efficiency. Finally, we present an exploratory study of the measurement of Λ+c→pK−π+ in pp collisions at s√=7 TeV, using the Bayesian approach for the identification of its decay products. |
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| DOI: | doi:10.1140/epjp/i2016-16168-5 |
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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: https://doi.org/10.1140/epjp/i2016-16168-5 |
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| | DOI: https://doi.org/10.1140/epjp/i2016-16168-5 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1725152762 |
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| Verknüpfungen: | → Zeitschrift |
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Particle identification in ALICE / Adam, Jaroslav [VerfasserIn]; 25 May 2016 (Online-Ressource)
