학술논문

Measurement of electrons from beauty hadron decays in pp collisions at root s=7 TeV
Document Type
Author
Abelev, B.Adam, J.Adamova, D.Adare, A. M.Aggarwal, M. M.Rinella, G. AglieriAgocs, A. G.Agostinelli, A.Salazar, S. AguilarAhammed, Z.Ahmad, N.Masoodi, A. AhmadAhn, S. A.Ahn, S. U.Akindinov, A.Aleksandrov, D.Alessandro, B.Alfaro Molina, R.Alici, A.Alkin, A.Almaraz Avina, E.Alme, J.Alt, T.Altini, V.Altinpinar, S.Altsybeev, I.Andrei, C.Andronic, A.Anguelov, V.Anielski, J.Anson, C.Anticic, T.Antinori, F.Antonioli, P.Aphecetche, L.Appelshaeuser, H.Arbor, N.Arcelli, S.Arend, A.Armesto, N.Arnaldi, R.Aronsson, T.Arsene, I. C.Arslandok, M.Asryan, A.Augustinus, A.Averbeck, R.Awes, T. C.Aysto, J.Azmi, M. D.Bach, M.Badala, A.Baek, Y. W.Bailhache, R.Bala, R.Ferroli, R. BaldiniBaldisseri, A.Baldit, A.Pedrosa, F. Baltasar Dos SantosBan, J.Baral, R. C.Barbera, R.Barile, F.Barnafoeldi, G. G.Barnby, L. S.Barret, V.Bartke, J.Basile, M.Bastid, N.Basu, S.Bathen, B.Batigne, G.Batyunya, B.Baumann, C.Bearden, I. G.Beck, H.Behera, N. K.Belikov, I.Bellini, F.Bellwied, R.Belmont-Moreno, E.Bencedi, G.Beole, S.Berceanu, I.Bercuci, A.Berdnikov, Y.Berenyi, D.Bergognon, A. A. E.Berzano, D.Betev, L.Bhasin, A.Bhati, A. K.Bhom, J.Bianchi, L.Bianchi, N.Bianchin, C.Bielcik, J.Bielcikova, J.Bilandzic, A.Bjelogrlic, S.Blanco, F.Blau, D.Blume, C.Boccioli, M.Bock, N.Boettger, S.Bogdanov, A.Boggild, H.Bogolyubsky, M.Boldizsar, L.Bombara, M.Book, J.Borel, H.Borissov, A.Bose, S.Bossu, F.Botje, M.Botta, E.Boyer, B.Braidot, E.Braun-Munzinger, P.Bregant, M.Breitner, T.Browning, T. A.Broz, M.Brun, R.Bruna, E.Bruno, G. E.Budnikov, D.Buesching, H.Bufalino, S.Busch, O.Buthelezi, Z.Orduna, D. CaballeroCaffarri, D.Cai, X.Caines, H.Calvo Villar, E.Camerini, P.Canoa Roman, V.Romeo, G. CaraCarena, F.Carena, W.Carlin Filho, N.Carminati, F.Diaz, A. CasanovaCastellanos, J. CastilloCastillo Hernandez, J. F.Casula, E. A. R.Catanescu, V.Cavicchioli, C.Ceballos Sanchez, C.Cepila, J.Cerello, P.Chang, B.Chapeland, S.Charvet, J. L.Chattopadhyay, S.Chawla, I.Cherney, M.Cheshkov, C.Cheynis, B.Barroso, V. ChibanteChinellato, D. D.Chochula, P.Chojnacki, M.Choudhury, S.Christakoglou, P.Christensen, C. H.Christiansen, PeterChujo, T.Chung, S. U.Cicalo, C.Cifarelli, L.Cindolo, F.Cleymans, J.Coccetti, R.Colamaria, F.Colella, D.Balbastre, G. Conesadel Valle, Z. ConesaConstantin, R.Contin, G.Contreras, J. G.Cormier, T. M.Morales, Y. CorralesCortese, P.Cortes Maldonado, I.Cosentino, M. R.Costa, F.Cotallo, M. E.Crescio, E.Crochet, P.Cruz Alaniz, E.Cuautle, E.Cunqueiro, L.Dainese, A.Dalsgaard, H. H.Danu, A.Das, D.Das, I.Das, K.Dash, A.Dash, S.De, S.de Barros, G. O. V.De Caro, A.de Cataldo, G.de Cuveland, J.De Falco, A.De Gruttola, D.Delagrange, H.Deloff, A.Demanov, V.De Marco, N.Denes, E.De Pasquale, S.Deppman, A.Erasmo, G. D.de Rooij, R.Diaz Corchero, M. A.Di Bari, D.Dietel, T.Di Giglio, C.Di Liberto, S.Di Mauro, A.Di Nezza, P.Divia, R.Djuvsland, O.Dobrin, AlexandruDobrowolski, T.Dominguez, I.Doenigus, B.Dordic, O.Driga, O.Dubey, A. K.Dubla, A.Ducroux, L.Dupieux, P.Majumdar, M. R. DuttaMajumdar, A. K. DuttaElia, D.Emschermann, D.Engel, H.Erazmus, B.Erdal, H. A.Espagnon, B.Estienne, M.Esumi, S.Evans, D.Eyyubova, G.Fabris, D.Faivre, J.Falchieri, D.Fantoni, A.Fasel, M.Fearick, R.Fedunov, A.Fehlker, D.Feldkamp, L.Felea, D.Fenton-Olsen, B.Feofilov, G.Fernandez Tellez, A.Ferretti, A.Ferretti, R.Festanti, A.Figiel, J.Figueredo, M. A. S.Filchagin, S.Finogeev, D.Fionda, F. M.Fiore, E. M.Floris, M.Foertsch, S.Foka, P.Fokin, S.Fragiacomo, E.Francescon, A.Frankenfeld, U.Fuchs, U.Furget, C.Girard, M. FuscoGaardhoje, J. J.Gagliardi, M.Gago, A.Gallio, M.Gangadharan, D. R.Ganoti, P.Garabatos, C.Garcia-Solis, E.Garishvili, I.Gerhard, J.Germain, M.Geuna, C.Gheata, A.Gheata, M.Ghidini, B.Ghosh, P.Gianotti, P.Girard, M. 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Source
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. 721(1-3):13-23
Subject
LHC
ALICE experiment
pp collisions
Single electrons
Heavy flavor
production
Beauty production
Naturvetenskap
Fysik
Subatomär fysik
Natural Sciences
Physical Sciences
Subatomic Physics
Language
English
ISSN
0370-2693
Abstract
The production cross section of electrons from semileptonic decays of beauty hadrons was measured at mid-rapidity (vertical bar y vertical bar < 0.8) in, the transverse momentum range 1 < p(T) < 8 GeV/c with the ALICE experiment at the CERN LHC in pp collisions at a center of mass energy root s = 7 TeV using an integrated luminosity of 2.2 nb(-1). Electrons from beauty hadron decays were selected based on the displacement of the decay vertex from the collision vertex. A perturbative QCD calculation agrees with the measurement within uncertainties. The data were extrapolated to the full phase space to determine the total cross section for the production of beauty quark-antiquark pairs. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.