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dc.contributor.authorAdam, J. and Adamova, D. and Aggarwal, M. M. and Rinella, G. Aglieri and Agnello, M. and Agrawal, N. and Ahammed, Z. and Ahmad, S. and Ahn, S. U. and Aiola, S. and Akindinov, A. and Alam, S. N. and Albuquerque, D. S. D. and Aleksandrov, D. and Alessandro, B. and Alexandre, D. and Alfaro Molina, R. and Alici, A. and Alkin, A. and Almaraz, J. R. M. and Alme, J. and Alt, T. and Altinpinar, S. and Altsybeev, I. and Alves Garcia Prado, C. and Andrei, C. and Andronic, A. and Anguelov, V. and Anticic, T. and Antinori, F. and Antonioli, P. and Aphecetche, L. and Appelshaeuser, H. and Arcelli, S. and Arnaldi, R. and Arnold, O. W. and Arsene, I. C. and Arslandok, M. and Audurier, B. and Augustinus, A. and Averbeck, R. and Azmi, M. D. and Badala, A. and Baek, Y. W. and Bagnasco, S. and Bailhache, R. and Bala, R. and Balasubramanian, S. and Baldisseri, A. and Baral, R. C. and Barbano, A. M. and Barbera, R. and Barile, F. and Barnafoeldi, G. G. and Barnby, L. S. and Barret, V. and Bartalini, P. and Barth, K. and Bartke, J. and Bartsch, E. and Basile, M. and Bastid, N. and Basu, S. and Bathen, B. and Batigne, G. and Camejo, A. Batista and Batyunya, B. and Batzing, P. C. and Bearden, I. G. and Beck, H. and Bedda, C. and Behera, N. K. and Belikov, I. and Bellini, F. and Bello Martinez, H. and Bellwied, R. and Belmont, R. and Belmont-Moreno, E. and Belyaev, V. and Benacek, P. and Bencedi, G. and Beole, S. and Berceanu, I. and Bercuci, A. and Berdnikov, Y. and Berenyi, D. and Bertens, R. A. and Berzano, D. and Betev, L. and Bhasin, A. and Bhat, I. R. and Bhati, A. K. and Bhattacharjee, B. and Bhom, J. and Bianchi, L. and Bianchi, N. and Bianchin, C. and Bielcik, J. and Bielcikova, J. and Bilandzic, A. and Biro, G. and Biswas, R. and Biswas, S. and Bjelogrlic, S. and Blair, J. T. and Blau, D. and Blume, C. and Bock, F. and Bogdanov, A. and Boggild, H. and Boldizsar, L. and Bombara, M. and Book, J. and Borel, H. and Borissov, A. and Borri, M. and Bossu, F. and Botta, E. and Bourjau, C. and Braun-Munzinger, P. and Bregant, M. and Breitner, T. and Broker, T. A. and Browning, T. A. and Broz, M. and Brucken, E. J. and Bruna, E. and Bruno, G. E. and Budnikov, D. and Buesching, H. and Bufalino, S. and Buncic, P. and Busch, O. and Buthelezi, Z. and Butt, J. B. and Buxton, J. T. and Cabala, J. and Caffarri, D. and Cai, X. and Caines, H. and Diaz, L. Calero and Caliva, A. and Calvo Villar, E. and Camerini, P. and Carena, F. and Carena, W. and Carnesecchi, F. and Castellanos, J. Castillo and Castro, A. J. and Casula, E. A. R. and Sanchez, C. Ceballos and Cepila, J. and Cerello, P. and Cerkala, J. and Chang, B. and Chapeland, S. and Chartier, M. and Charvet, J. L. and Chattopadhyay, S. and Chattopadhyay, S. and Chauvin, A. and Chelnokov, V. and Cherney, M. and Cheshkov, C. and Cheynis, B. and Barroso, V. Chibante and Chinellato, D. D. and Cho, S. and Chochula, P. and Choi, K. and Chojnacki, M. and Choudhury, S. and Christakoglou, P. and Christensen, C. H. and Christiansen, P. and Chujo, T. and Chung, S. U. and Cicalo, C. and Cifarelli, L. and Cindolo, F. and Cleymans, J. and Colamaria, F. and Colella, D. and Collu, A. and Colocci, M. and Balbastre, G. Conesa and del Valle, Z. Conesa and Connors, M. E. and Contreras, J. G. and Cormier, T. M. and Morales, Y. Corrales and Cortes Maldonado, I. and Cortese, P. and Cosentino, M. R. and Costa, F. and Crochet, P. and Cruz Albino, R. and Cuautle, E. and Cunqueiro, L. and Dahms, T. and Dainese, A. and Danisch, M. 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S. and Windelband, B. and Winn, M. and Yang, H. and Yang, P. and Yano, S. and Yasin, Z. and Yin, Z. and Yokoyama, H. and Yoo, I. -K. and Yoon, J. H. and Yurchenko, V. and Yushmanov, I. and Zaborowska, A. and Zaccolo, V. and Zaman, A. and Zampolli, C. and Zanoli, H. J. C. and Zaporozhets, S. and Zardoshti, N. and Zarochentsev, A. and Zavada, P. and Zaviyalov, N. and Zbroszczyk, H. and Zgura, I. S. and Zhalov, M. and Zhang, H. and Zhang, X. and Zhang, Y. and Zhang, C. and Zhang, Z. and Zhao, C. and Zhigareva, N. and Zhou, D. and Zhou, Y. and Zhou, Z. and Zhu, H. and Zhu, J. and Zichichi, A. and Zimmermann, A. and Zimmermann, M. B. and Zinovjev, G. and Zyzak, M. and ALICE Collaboration
dc.date.accessioned2020-08-07T14:18:20Z
dc.date.available2020-08-07T14:18:20Z
dc.date.issued2016
dc.identifier10.1140/epjp/i2016-16168-5
dc.identifier.issn2190-5444
dc.identifier.urihttp://hdl.handle.net/20.500.12498/4682
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 K-S(0) -> pi(-)pi(+), phi -> K-K+, and A -> p pi(-) in p-Pb collisions at root sNN = 5.02 TeV. In order to thoroughly assess the validity of the Bayesian approach, this methodology was used to obtain corrected p(T) spectra of pions, kaons, protons, and D-0 mesons in pp collisions at root s = 7TeV. 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 D-0 -> K-pi(+), 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 A(c)(+) -> pK(-)pi(+) in pp collisions at root s = 7TeV, using the Bayesian approach for the identification of its decay products.
dc.language.isoEnglish
dc.publisherSPRINGER HEIDELBERG
dc.sourceEUROPEAN PHYSICAL JOURNAL PLUS
dc.titleParticle identification in ALICE: a Bayesian approach
dc.typeArticle


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