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http://repositorio.unicamp.br/jspui/handle/REPOSIP/53394
| Type: | Artigo de periódico |
| Title: | Measurement of inelastic, single- and double-diffraction cross sections in proton-proton collisions at the LHC with ALICE |
| Author: | Abelev, B Adam, J Adamova, D Adare, AM Aggarwal, MM Rinella, GA Agocs, AG Agostinelli, A Salazar, SA Ahammed, Z Masoodi, AA Ahmad, N Ahn, SA Ahn, SU Akindinov, A Aleksandrov, D Alessandro, B Molina, RA Alici, A Alkin, A Avina, EA 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 Appelshauser, H Arbor, N Arcelli, S Arend, A Armesto, N Arnaldi, R Aronsson, T Arsene, IC Arslandok, M Asryan, A Augustinus, A Averbeck, R Awes, TC Aysto, J Azmi, MD Bach, M Badala, A Baek, YW Bailhaches, R Bala, R Ferroli, RB Baldisseri, A Baldit, A Pedrosa, FBD Ban, J Baral, RC Barbera, R Barile, F Barnafoldi, GG Barnby, LS Barret, V Bartke, J Basile, M Bastid, N Basu, S Bathen, B Batigne, G Batyunya, B Baumann, C Bearden, IG Beck, H Behera, NK Belikov, I Bellini, F Bellwied, R Belmont-Moreno, E Bencedi, G Beole, S Berceanu, I Bercuci, A Berdnikov, Y Berenyi, D Bergognon, AAE Berzano, D Betev, L Bhasin, A Bhati, AK Bhom, J Bianchi, N Bianchi, L Bianchin, C Bielcik, J Bielcikova, J Bilandzic, A Bjelogrlic, S Blanco, F Blanco, F Blau, D Blume, C Boccioli, M Bock, N Bottger, 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, TA Broz, M Brun, R Bruna, E Bruno, GE Budnikov, D Buesching, H Bufalino, S Busch, O Buthelezi, Z Orduna, DC Caffarri, D Cai, X Caines, H Villar, EC Camerini, P Roman, VC Romeo, GC Carena, F Carena, W Carlin, N Carminati, F Diaz, AC Castellanos, JC Hernandez, JFC Casula, EAR Catanescu, V Cavicchioli, C Sanchez, CC Cepila, J Cerello, P Chang, B Chapeland, S Charvet, JL Chattopadhyay, S Chattopadhyay, S Chawla, I Cherney, M Cheshkov, C Cheynis, B Barroso, VC Chinellato, DD Chochula, P Chojnacki, M Choudhury, S Christakoglou, P Christensen, CH Christiansen, P Chujo, T Chung, SU Cicalo, C Cifarelli, L Cindolo, F Cleymans, J Coccetti, F Colamaria, F Colella, D Balbastre, GC del Valle, ZC Constantin, P Contin, G Contreras, JG Cormier, TM Morales, YC Cortese, P Maldonado, IC Cosentino, MR Costa, F Cotallo, ME Crescio, E Crochet, P Alaniz, EC Cuautle, E Cunqueiro, L Dainese, A Dalsgaard, HH Danu, A Das, D Das, K Das, I Dash, S Dash, A De, S de Barros, GOV 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, GD de Rooij, R Corchero, MAD Di Bari, D Dietel, T Di Giglio, C Di Liberto, S Di Mauro, A Di Nezza, P Divia, R Djuvsland, O Dobrin, A Dobrowolski, T Dominguez, I Donigus, B Dordic, O Driga, O Dubey, AK Dubla, A Ducroux, L Dupieux, P Majumdar, MRD Majumdar, AKD Elia, D Emschermann, D Engel, H Erazmus, B Erdal, HA 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 Tellez, AF Ferretti, A Ferretti, R Festanti, A Figiel, J Figueredo, MAS Filchagin, S Finogeev, D Fionda, FM Fiore, EM Floris, M Foertsch, S Foka, P Fokin, S Fragiacomo, E Francescon, A Frankenfeld, U Fuchs, U Furget, C Girard, MF Gaardhoje, JJ Gagliardi, M Gago, A Gallio, M Gangadharan, DR Ganoti, P Garabatos, C Garcia-Solis, E Garishvili, I Gerhard, J Germain, M Geuna, C Gheata, M Gheata, A Ghidini, B Ghosh, P Gianotti, P Girard, MR Giubellino, P Gladysz-Dziadus, E Glassel, P Gomez, R Ferreiro, EG Gonzalez-Trueba, LH Gonzalez-Zamora, P Gorbunov, S Goswami, A Gotovac, S Grabski, V Graczykowski, LK Grajcarek, R Grelli, A Grigoras, C Grigoras, A Grigoriev, V Grigoryan, S Grigoryan, A Grinyov, B Grion, N Gros, P Grosse-Oetringhauss, JF Grossiord, JY Grosso, R Guber, F Guernane, R Gutierrez, CG Guerzoni, B Guilbaud, M Gulbrandsen, K Gunji, T Gupta, A Gupta, R Gutbrod, H Haaland, O Hadjidakis, C Haiduc, M Hamagaki, H Hamar, G Han, BH Hanratty, LD Hansen, A Harmanova-Tothova, Z Harris, JW Hartig, M Hasegan, D Hatzifotiadou, D Hayrapetyan, A Heckel, ST Heide, M Helstrup, H Herghelegiu, A Corral, GH Herrmann, N Hess, BA Hetland, KF Hicks, B Hille, PT Hippolyte, B Horaguchi, T Hori, Y Hristov, P Hrivnacova, I Huang, M Humanic, TJ Hwang, DS Ichou, R Ilkaev, R Ilkiv, I Inaba, M Incani, E Innocenti, PG Innocenti, GM Ippolitov, M Irfan, M Ivan, C Ivanov, A Ivanov, M Ivanov, V Ivanytskyi, O Jacholkowski, A Jacobs, PM Jang, HJ Janik, R Janik, MA Jayarathna, PHSY Jena, S Jha, DM Bustamante, RTJ Jirden, L Jones, PG Jung, H Jusko, A Kaidalov, AB Kakoyan, V Kalcher, S Kalinak, P Kalliokoski, T Kalweit, A Kang, JH Kaplin, V Uysal, AK Karavichev, O Karavicheva, T Karpechev, E Kazantsev, A Kebschull, U Keidel, R Khan, P Khan, SA Khan, MM Khanzadeev, A Kharlov, Y Kileng, B Kim, S Kim, B Kim, T Kim, DJ Kim, DW Kim, JH Kim, JS Kim, M Kim, M Kirsch, S Kisel, I Kiselev, S Kisiel, A Klay, JL Klein, J Klein-Bosing, C Kliemant, M Kluge, A Knichel, ML Knospe, AG Koch, K Kohler, MK Kollegger, T Kolojvari, A Kondratiev, V Kondratyeva, N Konevskikh, A Korneev, A Kour, R Kowalski, M Kox, S Meethaleveede, GK Kral, J Kralik, I Kramer, F Kraus, I Krawutschke, T Krelina, M Kretz, M Krivda, M Krizek, F Krus, M Kryshen, E Krzewicki, M Kucheriaev, Y Kugathasan, T Kuhn, C Kuijer, PG Kulakov, I Kumar, J Kurashvili, P Kurepin, AB Kurepin, A Kuryakin, A Kushpil, V Kushpil, S Kvaerno, H Kweon, MJ Kwon, Y de Guevara, PL Lakomov, I Langoy, R La Pointe, SL Lara, C Lardeux, A La Rocca, P Lea, R Le Bornec, Y Lechman, M Lee, SC Lee, GR Lee, KS Lefevre, F Lehnert, J Lenhardt, M Lenti, V Leon, H Leoncino, M Monzon, IL Vargas, HL Levai, P Lien, J Lietava, R Lindal, S Lindenstruth, V Lippmann, C Lisa, MA Liu, L Loggins, VR Loginov, V Lohn, S Lohner, D Loizides, C Loo, KK Lopez, X Torres, EL Lovhoiden, G Lu, XG Luettig, P Lunardon, M Luo, J Luparello, G Luquin, L Luzzi, C Ma, K Ma, R Madagodahettige-Don, DM Maevskaya, A Mager, M Mahapatra, DP Maire, A Malaev, M Cervantes, IM Malinina, L Mal'Kevich, MVD Malzacher, P Mamonov, A Mangotra, L Manko, V Manso, F Manzari, V Mao, Y Marchisone, M Mares, J Margagliotti, GV Margotti, A Marin, A Tobon, CAM Markert, C Marquard, M Martashvili, I Martinengo, P Martinez, MI Davalos, AM Garcia, GM Martynov, Y Mas, A Masciocchi, S Masera, M Masoni, A Massacrier, L Mastroserio, A Matthews, ZL Matyja, A Mayer, C Mazer, J Mazzoni, MA Meddi, F Menchaca-Rocha, A Perez, JM Meres, M Miake, Y Milano, L Milosevic, J Mischke, A Mishra, AN Miskowiec, D Mitu, C Mlynarz, J Mohanty, B Molnar, L Zetina, LM Monteno, M Montes, E Moon, T Morando, M De Godoy, DAM Moretto, S Morsch, A Muccifora, V Mudnic, E Muhuri, S Mukherjee, M Muller, H Munhoz, MG Musa, L Musso, A Nandi, BK Nania, R Nappi, E Nattrass, C Naumov, NP Navin, S Nayak, TK Nazarenko, S Nazarov, G Nedosekin, A Nicassio, M Niculescu, M Nielsen, BS Niida, T Nikolaev, S Nikolic, V Nikulin, S Nikulin, V Nilsen, BS Nilsson, MS Noferini, F Nomokonov, P Nooren, G Novitzky, N Nyanin, A Nyatha, A Nygaard, C Nystrand, J Ochirov, A Oeschler, H Oh, S Oh, SK Oleniacz, J Oppedisano, C Velasquez, AO Ortona, G Oskarsson, A Ostrowski, P Otwinowski, J Oyama, K Ozawa, K Pachmayer, Y Pachr, M Padilla, F Pagano, P Palc, G Painke, F Pajares, C Pal, SK Palaha, A Palmeri, A Papikyan, V Pappalardo, GS Park, WJ Passfeld, A Pastircak, B Patalakha, DI Paticchio, V Pavlinov, A Pawlak, T Peitzmann, T Da Costa, HP De Oliveira, EP Peresunko, D Lara, CEP Lezama, EP Perini, D Perrino, D Peryt, W Pesci, A Peskov, V Pestov, Y Petracek, V Petran, M Petris, M Petrov, P Petrovici, M Petta, C Piano, S Piccotti, A Pikna, M Pillot, P Pinazza, O Pinsky, L Pitz, N Piyarathna, DB Planinic, M Ploskon, M Pluta, J Pocheptsov, T Pochybova, S Podesta-Lerma, PLM Poghosyan, MG Polak, K Polichtchouk, B Pop, A Porteboeuf-Houssais, S Pospisil, V Potukuchi, B Prasad, SK Preghenella, R Prino, F Pruneau, CA Pshenichnov, I Puchagin, S Puddu, G Pulvirenti, A Punin, V Putis, M Putschke, J Quercigh, E Qvigstad, H Rachevski, A Rademakers, A Raiha, TS Rak, J Rakotozafindrabe, A Ramello, L Reyes, AR Raniwala, S Raniwala, R Rasanen, SS Rascanu, BT Rathee, D Read, KF Real, JS Redlich, K Reichelt, P Reicher, M Renfordt, R Reolon, AR Reshetin, A Rettig, F Revol, JP Reygers, K Riccati, L Ricci, RA Richert, T Richter, M Riedler, P Riegler, W Riggi, F Rabacal, BRF Cahuantzi, MR Manso, AR Roed, K Rohr, D Rohrich, D Romita, R Ronchetti, F Rosnet, P Rossegger, S Rossi, A Roy, P Roy, C Montero, AJR Rui, R Russo, R Ryabinkin, E Rybicki, A Sadovsky, S Safarik, K Sahoo, R Sahu, PK Saini, J Sakaguchi, H Sakai, S Sakata, D Salgado, CA Salzwedel, J Sambyal, S Samsonov, V Castro, XS Sandor, L Sandoval, A Sano, M Sano, S Santo, R Santoro, R Sarkamo, J Scapparone, E Scarlassara, F Scharenberg, RP Schiaua, C Schicker, R Schmidt, C Schmidt, HR Schreiner, S Schuchmann, S Schukraft, J Schutz, Y Schwarz, K Schweda, K Scioli, G Scomparin, E Scott, R Segato, G Selyuzhenkov, I Senyukov, S Seo, J Serci, S Serradilla, E Sevcenco, A Shabetai, A Shabratova, G Shahoyan, R Sharma, N Sharma, S Rohni, S Shigaki, K Shimomura, M Shtejer, K Sibiriak, Y Siciliano, M Sicking, E Siddhanta, S Siemiarczuk, T Silvermyr, D Silvestre, C Simatovic, G Simonetti, G Singaraju, R Singh, R Singha, S Singhal, V Sinha, BC Sinha, T Sitar, B Sitta, M Skaali, TB Skjerdal, K Smakal, R Smirnov, N Snellings, RJM Sogaard, C Soltz, R Son, H Song, M Song, J Soos, C Soramel, F Sputowska, I Spyropoulou-Stassinaki, M Srivastava, BK Stachel, J Stan, I Stan, I Stefanek, G Steinpreis, M Stenlund, E Steyn, G Stiller, JH Stocco, D Stolpovskiy, M Strabykin, K Strmen, P Suaide, AAP Vasquez, MAS Sugitate, T Suire, C Sukhorukov, M Sultanov, R Sumbera, M Susa, T Symons, TJM de Toledo, AS Szarka, I Szczepankiewicz, A Szostak, A Szymanski, M Takahashi, J Takaki, JDT Tauro, A Munoz, GT Telesca, A Terrevoli, C Thader, J Thomas, D Tieulent, R Timmins, AR Tlusty, D Toia, A Torii, H Toscano, L Trubnikov, V Truesdale, D Trzaska, WH Tsuji, T Tumkin, A Turrisi, R Tveter, TS Ulery, J Ullaland, K Ulrich, J Uras, A Urban, J Urciuoli, GM Usai, GL Vajzer, M Vala, M Palomo, LV Vallero, S Vyvre, PV van Leeuwen, M Vannucci, L Vargas, A Varma, R Vasileiou, M Vasiliev, A Vechernin, V Veldhoen, M Venaruzzo, M Vercellin, E Vergara, S Vernet, R Verweij, M Vickovic, L Viesti, G Vikhlyantsev, O Vilakazi, Z Baillie, OV Vinogradov, Y Vinogradov, A Vinogradov, L Virgili, T Viyogi, YP Vodopyanov, A Voloshin, S Voloshin, K Volpe, G von Haller, B Vranic, D Ovrebekk, G Vrlakova, J Vulpescu, B Vyushin, A Wagner, V Wagner, B Wan, R Wang, M Wang, D Wang, Y Wang, Y Watanabe, K Weber, M Wessels, JP Westerhoff, U Wiechula, J Wikne, J Wilde, M Wilk, A Wilk, G Williams, MCS Windelband, B Karampatsos, LX Yaldo, CG Yamaguchi, Y Yang, H Yang, S Yasnopolskiy, S Yi, J Yin, Z Yoo, IK Yoon, J Yu, W Yuan, X Yushmanov, I Zaccolo, V Zach, C Zampolli, C Zaporozhets, S Zarochentsev, A Zavada, P Zaviyalov, N Zbroszczyk, H Zelnicek, P Zgura, IS Zhalov, M Zhang, X Zhang, H Zhou, D Zhou, Y Zhou, F Zhu, J Zhu, J Zhu, X Zichichi, A Zimmermann, A Zinovjev, G Zoccarato, Y Zynovyev, M Zyzak, M |
| Abstract: | Measurements of cross sections of inelastic and diffractive processes in proton-proton collisions at LHC energies were carried out with the ALICE detector. The fractions of diffractive processes in inelastic collisions were determined from a study of gaps in charged particle pseudorapidity distributions: for single diffraction (diffractive mass M-X < 200 GeV/c(2)) sigma(SD)/sigma(INEL) = 0.21 +/- 0.03, 0.20(-0.08)(+0.07,) and 0.20(-0.07)(+0.04), respectively at centre-of-mass energies root s = 0.9, 2.76, and 7 TeV; for double diffraction (for a pseudorapidity gap Delta eta > 3) sigma(DD)/sigma(INEL) = 0.11 +/- 0.03, 0.12 +/- 0.05, and 0.12(-0.04)(+0.05), respectively at root s = 0.9, 2.76, and 7 TeV. To measure the inelastic cross section, beam properties were determined with van der Meer scans, and, using a simulation of diffraction adjusted to data, the following values were obtained: sigma(INEL) = 62.8(-4.0)(+2.4)(model) +/- 1.2(lumi) mb at root s = 2.76 TeV and 73.2(-4.6)(+2.0)(model) +/- 2.6(lumi) mb at root s = 7 TeV. The single- and double-diffractive cross sections were calculated combining relative rates of diffraction with inelastic cross sections. The results are compared to previous measurements at proton-antiproton and proton-proton colliders at lower energies, to measurements by other experiments at the LHC, and to theoretical models. |
| Country: | EUA |
| Editor: | Springer |
| Citation: | European Physical Journal C. Springer, v. 73, n. 6, 2013. |
| Rights: | fechado |
| Identifier DOI: | 10.1140/epjc/s10052-013-2456-0 |
| Date Issue: | 2013 |
| Appears in Collections: | Unicamp - Artigos e Outros Documentos |
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