Hide metadata

dc.date.accessioned2018-11-29T14:09:50Z
dc.date.available2018-11-29T14:09:50Z
dc.date.created2016-07-21T11:16:37Z
dc.date.issued2016
dc.identifier.citationAdam, Jaroslav Adamová, Dagmar Aggarwal, Madan M. Aglieri Rinella, Gianluca Agnello, Michelangelo Agrawal, Nikita Ahammed, Zubayer Ahmad, Shafiq F. Ahn, Sang Un Aiola, Salvatore Alme, Johan Helstrup, Håvard Hetland, Kristin Fanebust Kileng, Bjarte Altinpinar, Sedat Djuvsland, Øystein Haaland, Øystein Senneset Lønne, Per-Ivar Nystrand, Joakim Rehman, Attiq ur Røhrich, Dieter Tambave, Ganesh Jagannath Ullaland, Kjetil Velure, Arild Wagner, Boris Zhang, Hui Zhou, Zhuo Zhu, Hongsheng Arsene, Ionut Christian Bätzing, Paul Christoph Dordic, Olja Lindal, Svein Mahmood, Sohail Musa Milosevic, Jovan Qvigstad, Henrik Richter, Matthias Røed, Ketil Skaali, Toralf Bernhard Tveter, Trine Spedstad Wikne, Jon Christopher Zhao, Chengxin Langøy, Rune Lien, Jørgen André Akindinov, Alexander Alam, Sk Noor De Albuquerque, Danilo Silva Aleksandrov, Dimitry Alessandro, Bruno Alexandre, Didier Alfaro Molina, José Rubén ALICE, Collaboration . Particle identification in ALICE: a Bayesian approach. The European Physical Journal Plus. 2016, 131:168(5)
dc.identifier.urihttp://hdl.handle.net/10852/65831
dc.description.abstractWe 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 K0 S → 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.en_US
dc.languageEN
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleParticle identification in ALICE: a Bayesian approachen_US
dc.title.alternativeENEngelskEnglishParticle identification in ALICE: a Bayesian approach
dc.typeJournal articleen_US
dc.creator.authorAdam, Jaroslav
dc.creator.authorAdamová, Dagmar
dc.creator.authorAggarwal, Madan M.
dc.creator.authorAglieri Rinella, Gianluca
dc.creator.authorAgnello, Michelangelo
dc.creator.authorAgrawal, Nikita
dc.creator.authorAhammed, Zubayer
dc.creator.authorAhmad, Shafiq F.
dc.creator.authorAhn, Sang Un
dc.creator.authorAiola, Salvatore
dc.creator.authorAlme, Johan
dc.creator.authorHelstrup, Håvard
dc.creator.authorHetland, Kristin Fanebust
dc.creator.authorKileng, Bjarte
dc.creator.authorAltinpinar, Sedat
dc.creator.authorDjuvsland, Øystein
dc.creator.authorHaaland, Øystein Senneset
dc.creator.authorLønne, Per-Ivar
dc.creator.authorNystrand, Joakim
dc.creator.authorRehman, Attiq ur
dc.creator.authorRøhrich, Dieter
dc.creator.authorTambave, Ganesh Jagannath
dc.creator.authorUllaland, Kjetil
dc.creator.authorVelure, Arild
dc.creator.authorWagner, Boris
dc.creator.authorZhang, Hui
dc.creator.authorZhou, Zhuo
dc.creator.authorZhu, Hongsheng
dc.creator.authorArsene, Ionut Christian
dc.creator.authorBätzing, Paul Christoph
dc.creator.authorDordic, Olja
dc.creator.authorLindal, Svein
dc.creator.authorMahmood, Sohail Musa
dc.creator.authorMilosevic, Jovan
dc.creator.authorQvigstad, Henrik
dc.creator.authorRichter, Matthias
dc.creator.authorRøed, Ketil
dc.creator.authorSkaali, Toralf Bernhard
dc.creator.authorTveter, Trine Spedstad
dc.creator.authorWikne, Jon Christopher
dc.creator.authorZhao, Chengxin
dc.creator.authorLangøy, Rune
dc.creator.authorLien, Jørgen André
dc.creator.authorAkindinov, Alexander
dc.creator.authorAlam, Sk Noor
dc.creator.authorDe Albuquerque, Danilo Silva
dc.creator.authorAleksandrov, Dimitry
dc.creator.authorAlessandro, Bruno
dc.creator.authorAlexandre, Didier
dc.creator.authorAlfaro Molina, José Rubén
dc.creator.authorALICE, Collaboration
cristin.unitcode185,15,4,60
cristin.unitnameHøyenergifysikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1368864
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The European Physical Journal Plus&rft.volume=131:168&rft.spage=&rft.date=2016
dc.identifier.jtitleThe European Physical Journal Plus
dc.identifier.volume131:168
dc.identifier.issue5
dc.identifier.doihttp://dx.doi.org/10.1140/epjp/i2016-16168-5
dc.identifier.urnURN:NBN:no-68238
dc.subject.nviVDP::Kjerne- og elementærpartikkelfysikk: 431
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn2190-5444
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/65831/2/i2016-16168-5_HVL.pdf
dc.type.versionPublishedVersion
dc.relation.projectNFR/255188


Files in this item

Appears in the following Collection

Hide metadata

Attribution 4.0 International
This item's license is: Attribution 4.0 International