π<SUP>0</SUP> and η meson production in proton-proton collisions at √s=8 TeV

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초록

An invariant differential cross section measurement of inclusive pi(0) and eta meson production atmid-rapidity in pp collisions at root s = 8 TeV was carried out by the ALICE experiment at the LHC. The spectra of pi(0) and eta mesons were measured in transverse momentum ranges of 0.3 < p(T) < 35 GeV/c and 0.5 < p(T) < 35 GeV/c, respectively. Next-to-leading order perturbative QCD calculations using fragmentation functions DSS14 for the pi(0) and AESSS for the. overestimate the cross sections of both neutral mesons, although such calculations agree with the measured eta/pi(0) ratio within uncertainties. The results were also compared with PYTHIA 8.2 predictions for which the Monash 2013 tune yields the best agreement with the measured neutral meson spectra. The measurements confirm a universal behavior of the eta/pi(0) ratio seen forNA27, PHENIX and ALICE data for pp collisions from root s = 27.5 GeV to root s = 8 TeV within experimental uncertainties. A relation between the pi(0) and eta production cross sections for pp collisions at root s = 8 TeV is given by m(T) scaling for p(T) > 3.5 GeV/c. However, a deviation from this empirical scaling rule is observed for transverse momenta below p(T) < 3.5 GeV/c in the eta/pi(0) ratio with a significance of 6.2 sigma.

키워드

PB-PB COLLISIONSTRANSVERSE-MOMENTUMNEUTRAL PIONPPSPECTRAALICE
제목
π<SUP>0</SUP> and η meson production in proton-proton collisions at √s=8 TeV
저자
Acharya, S.Adam, J.Adamova, D.Adolfsson, J.Aggarwal, M. M.Rinella, G. AglieriAgnello, M.Agrawal, N.Ahammed, Z.Ahmad, N.Ahn, S. U.Aiola, S.Akindinov, A.Al-Turany, M.Alam, S. N.Alba, J. L. B.Albuquerque, D. S. D.Aleksandrov, D.Alessandro, B.Molina, R. AlfaroAlici, A.Alkin, A.Alme, J.Alt, T.Altenkamper, L.Altsybeev, I.Prado, C. Alves GarciaAndrei, C.Andreou, D.Andrews, H. A.Andronic, A.Anguelov, V.Anson, C.Anticic, T.Antinori, F.Antonioli, P.Anwar, R.Aphecetche, L.Appelshauser, H.Arcelli, S.Arnaldi, R.Arnold, O. W.Arsene, I. C.Arslandok, M.Audurier, B.Augustinus, A.Averbeck, R.Azmi, M. D.Badala, A.Baek, Y. W.Bagnasco, S.Bailhache, R.Bala, R.Baldisseri, A.Ball, M.Baral, R. C.Barbano, A. M.Barbera, R.Barile, F.Barioglio, L.Barnafoldi, G. G.Barnby, L. S.Barret, V.Bartalini, P.Barth, K.Bartsch, E.Basile, M.Bastid, N.Basu, S.Batigne, G.Batyunya, B.Batzing, P. C.Bearden, I. G.Beck, H.Bedda, C.Behera, N. K.Belikov, I.Bellini, F.Martinez, H. BelloBellwied, R.Beltran, L. G. E.Belyaev, V.Bencedi, G.Beole, S.Bercuci, A.Berdnikov, Y.Berenyi, D.Bertens, R. A.Berzano, D.Betev, L.Bhasin, A.Bhat, I. R.Bhati, A. K.Bhattacharjee, B.Bhom, J.Bianchi, A.Bianchi, L.Bianchi, N.Bianchin, C.Bielcik, J.Bielcikova, J.Bilandzic, A.Biro, G.Biswas, R.Biswas, S.Blair, J. T.Blau, D.Blume, C.Boca, G.Bock, F.Bogdanov, A.Boldizsar, L.Bombara, M.Bonomi, G.Bonora, M.Book, J.Borel, H.Borissov, A.Borri, M.Botta, E.Bourjau, C.Bratrud, L.Braun-Munzinger, P.Bregant, M.Broker, T. A.Broz, M.Brucken, E. J.Bruna, E.Bruno, G. E.Budnikov, D.Buesching, H.Bufalino, S.Buhler, P.Buncic, P.Busch, O.Buthelezi, Z.Butt, J. B.Buxton, J. T.Cabala, J.Caffarri, D.Caines, H.Caliva, A.Villar, E. CalvoCamerini, P.Capon, A. A.Carena, F.Carena, W.Carnesecchi, F.Castellanos, J. CastilloCastro, A. J.Casula, E. A. R.Sanchez, C. CeballosCerello, P.Chandra, S.Chang, B.Chapeland, S.Chartier, M.Chattopadhyay, S.Chattopadhyay, S.Chauvin, A.Cheshkov, C.Cheynis, B.Barroso, V. ChibanteChinellato, D. D.Cho, S.Chochula, P.Chojnacki, M.Choudhury, S.Chowdhury, T.Christakoglou, P.Christensen, C. H.Christiansen, P.Chujo, T.Chung, S. U.Cicalo, C.Cifarelli, L.Cindolo, F.Cleymans, J.Colamaria, F.Colella, D.Collu, A.Colocci, M.Concas, M.Balbastre, G. Conesadel Valle, Z. ConesaConnors, M. E.Contreras, J. G.Cormier, T. M.Morales, Y. CorralesMaldonado, I. CortesCortese, P.Cosentino, M. R.Costa, F.Costanza, S.Crkovska, J.Crochet, P.Cuautle, E.Cunqueiro, L.Dahms, T.Dainese, A.Danisch, M. C.Danu, A.Das, D.Das, I.Das, S.Dash, A.Dash, S.De, S.De Caro, A.de Cataldo, G.de Conti, C.de Cuveland, J.De Falco, A.De Gruttola, D.De Marco, N.De Pasquale, S.De Souza, R. D.Degenhardt, H. F.Deisting, A.Deloff, A.Deplano, C.Dhankher, P.Di Bari, D.Di Mauro, A.Di Nezza, P.Di Ruzza, B.Dietel, T.Dillenseger, P.Divia, R.Djuvsland, O.Dobrin, A.Gimenez, D. DomenicisDonigus, B.Dordic, O.Doremalen, L. V. R.Dubey, A. K.Dubla, A.Ducroux, L.Duggal, A. K.Dukhishyam, M.Dupieux, P.Ehlers, R. J.Elia, D.Endress, E.Engel, H.Epple, E.Erazmus, B.Erhardt, F.Espagnon, B.Esumi, S.Eulisse, G.Eum, J.Evans, D.Evdokimov, S.Fabbietti, L.Faivre, J.Fantoni, A.Fasel, M.Feldkamp, L.Feliciello, A.Feofilov, G.Tellez, A. FernandezFerretti, A.Festanti, A.Feuillard, V. J. G.Figiel, J.Figueredo, M. A. S.Filchagin, S.Finogeev, D.Fionda, F. M.Floris, M.Foertsch, S.Foka, P.Fokin, S.Fragiacomo, E.Francescon, A.Francisco, A.Frankenfeld, U.Fronze, G. G.Fuchs, U.Furget, C.Furs, A.Girard, M. FuscoGaardhoje, J. J.Gagliardi, M.Gago, A. M.Gajdosova, K.Gallio, M.Galvan, C. D.Ganoti, P.Garabatos, C.Garcia-Solis, E.Garg, K.Gargiulo, C.Gasik, P.Gauger, E. F.Ducati, M. B. GayGermain, M.Ghosh, J.Ghosh, P.Ghosh, S. K.Gianotti, P.Giubellino, P.Giubilato, P.Gladysz-Dziadus, E.Glassel, P.Coral, D. M. GomezRamirez, A. GomezGonzalez, A. S.Gonzalez-Zamora, P.Gorbunov, S.Gorlich, L.Gotovac, S.Grabski, V.Graczykowski, L. K.Graham, K. L.Greiner, L.Grelli, A.Grigoras, C.Grigoriev, V.Grigoryan, A.Grigoryan, S.Gronefeld, J. M.Grosa, F.Grosse-Oetringhaus, J. F.Grosso, R.Gruber, L.Guber, F.Guernane, R.Guerzoni, B.Gulbrandsen, K.Gunji, T.Gupta, A.Gupta, R.Guzman, I. B.Haake, R.Hadjidakis, C.Hamagaki, H.Hamar, G.Hamon, J. C.Haque, M. R.Harris, J. W.Harton, A.Hassan, H.Hatzifotiadou, D.Hayashi, S.Heckel, S. T.Hellbar, E.Helstrup, H.Herghelegiu, A.Hernandez, E. G.Corral, G. HerreraHerrmann, F.Hess, B. A.Hetland, K. F.Hillemanns, H.Hills, C.Hippolyte, B.Hladky, J.Hohlweger, B.Horak, D.Hornung, S.Hosokawa, R.Hristov, P.Hughes, C.Humanic, T. J.Hussain, N.Hussain, T.Hutter, D.Hwang, D. S.Buitron, S. A. IgaIlkaev, R.Inaba, M.Ippolitov, M.Irfan, M.Islam, M. S.Ivanov, M.Ivanov, V.Izucheev, V.Jacak, B.Jacazio, N.Jacobs, P. M.Jadhav, M. B.Jadlovsky, J.Jaelani, S.Jahnke, C.Jakubowska, M. J.Janik, M. A.Jayarathna, P. H. S. Y.Jena, C.Jena, S.Jercic, M.Bustamante, R. T. JimenezJones, P. G.Jusko, A.Kalinak, P.Kalweit, A.Kang, J. H.Kaplin, V.Kar, S.Uysal, A. KarasuKaravichev, O.Karavicheva, T.Karayan, L.Karczmarczyk, P.Karpechev, E.Kebschull, U.Keidel, R.Keijdener, D. L. D.Keil, M.Ketzer, B.Khabanova, Z.Khan, P.Khan, S. A.Khanzadeev, A.Kharlov, Y.Khatun, A.Khuntia, A.Kielbowicz, M. M.Kileng, B.Kim, B.Kim, D.Kim, D. J.Kim, H.Kim, J. S.Kim, J.Kim, M.Kim, M.Kim, S.Kim, T.Kirsch, S.Kisel, I.Kiselev, S.Kisiel, A.Kiss, G.Klay, J. L.Klein, C.Klein, J.Klein-Bosing, C.Klewin, S.Kluge, A.Knichel, M. L.Knospe, A. G.Kobdaj, C.Kofarago, M.Kohler, M. K.Kollegger, T.Kondratiev, V.Kondratyeva, N.Kondratyuk, E.Konevskikh, A.Konyushikhin, M.Kopcik, M.Kour, M.Kouzinopoulos, C.Kovalenko, O.Kovalenko, V.Kowalski, M.Meethaleveedu, G. KoyithattaKralik, I.Kravcakova, A.Kreis, L.Krivda, M.Krizek, F.Kryshen, E.Krzewicki, M.Kubera, A. M.Kucera, V.Kuhn, C.Kuijer, P. G.Kumar, A.Kumar, J.Kumar, L.Kumar, S.Kundu, S.Kurashvili, P.Kurepin, A.Kurepin, A. B.Kuryakin, A.Kushpil, S.Kweon, M. J.Kwon, Y.La Pointe, S. L.La Rocca, P.Fernandes, C. LaganaLai, Y. S.Lakomov, I.Langoy, R.Lapidus, K.Lara, C.Lardeux, A.Lattuca, A.Laudi, E.Lavicka, R.Lea, R.Leardini, L.Lee, S.Lehas, F.Lehner, S.Lehrbach, J.Lemmon, C.Lenti, V.Leogrande, E.Monzon, I. LeonLevai, P.Li, X.Lien, J.Lietava, R.Lim, B.Lindal, S.Lindenstruth, V.Lindsay, S. W.Lippmann, C.Lisa, M. A.Litichevskyi, V.Llope, W. J.Lodato, D. F.Loenne, P. I.Loginov, V.Loizides, C.Loncar, P.Lopez, X.Torres, E. LopezLowe, A.Luettig, P.Luhder, J. R.Lunardon, M.Luparello, G.Lupi, M.Lutz, T. H.Maevskaya, A.Mager, M.Mahajan, S.Mahmood, S. M.Maire, A.Majka, R. D.Malaev, M.Malinina, L.Mal'Kevich, D.Malzacher, P.Mamonov, A.Manko, V.Manso, F.Manzari, V.Mao, Y.Marchisone, M.Mares, J.Margagliotti, G. V.Margotti, A.Margutti, J.Marin, A.Markert, C.Marquard, M.Martin, N. A.Martinengo, P.Martinez, J. A. L.Martinez, M. I.Garcia, G. MartinezPedreira, M. MartinezMasciocchi, S.Masera, M.Masoni, A.Masson, E.Mastroserio, A.Mathis, A. M.Matuoka, P. F. T.Matyja, A.Mayer, C.Mazer, J.Mazzilli, M.Mazzoni, M. A.Meddi, F.Melikyan, Y.Menchaca-Rocha, A.Meninno, E.Perez, J. MercadoMeres, M.Mhlanga, S.Miake, Y.Mieskolainen, M. M.Mihaylov, D. L.Mikhaylov, K.Milosevic, J.Mischke, A.Mishra, A. N.Miskowiec, D.Mitra, J.Mitu, C. M.Mohammadi, N.Mohanty, B.Khan, M. MohisinDe Godoy, D. A. MoreiraMoreno, L. A. P.Moretto, S.Morreale, A.Morsch, A.Muccifora, V.Mudnic, E.Muhlheim, D.Muhuri, S.Mukherjee, M.Mulligan, J. D.Munhoz, M. G.Munning, K.Munzer, R. H.Murakami, H.Murray, S.Musa, L.Musinsky, J.Myers, C. J.Myrcha, J. W.Nag, D.Naik, B.Nair, R.Nandi, B. K.Nania, R.Nappi, E.Narayan, A.Naru, M. U.da Luz, H. NatalNattrass, C.Navarro, S. R.Nayak, K.Nayak, R.Nayak, T. K.Nazarenko, S.Nedosekin, A.De Oliveira, R. A. NegraoNellen, L.Nesbo, S. V.Ng, F.Nicassio, M.Niculescu, M.Niedziela, J.Nielsen, B. S.Nikolaev, S.Nikulin, S.Nikulin, V.Noferini, F.Nomokonov, P.Nooren, G.Noris, J. C. C.Norman, J.Nyanin, A.Nystrand, J.Oeschler, H.Oh, S.Ohlson, A.Okubo, T.Olah, L.Oleniacz, J.Da Silva, A. C. OliveiraOliver, M. H.Onderwaater, J.Oppedisano, C.Orava, R.Oravec, M.Velasquez, A. OrtizOskarsson, A.Otwinowski, J.Oyama, K.Pachmayer, Y.Pacik, V.Pagano, D.Pagano, P.Paic, G.Palni, P.Pan, J.Pandey, A. K.Panebianco, S.Papikyan, V.Pappalardo, G. S.Pareek, P.Park, J.Parmar, S.Passfeld, A.Pathak, S. P.Patra, R. N.Paul, B.Pei, H.Peitzmann, T.Peng, X.Pereira, L. G.Da Costa, H. PereiraPeresunko, D.Lezama, E. PerezPeskov, V.Pestov, Y.Petracek, V.Petrov, V.Petrovici, M.Petta, C.Pezzi, R. P.Piano, S.Pikna, M.Pillot, P.Pimentel, L. O. D. L.Pinazza, O.Pinsky, L.Piyarathna, D. B.Ploskon, M.Planinic, M.Pliquett, F.Pluta, J.Pochybova, S.Podesta-Lerma, P. L. M.Poghosyan, M. G.Polichtchouk, B.Poljak, N.Poonsawat, W.Pop, A.Poppenborg, H.Porteboeuf-Houssais, S.Pozdniakov, V.Prasad, S. K.Preghenella, R.Prino, F.Pruneau, A.Pshenichnov, I.Puccio, M.Puddu, G.Pujahari, P.Punin, V.Putschke, J.Raha, S.Rajput, S.Rak, J.Rakotozafindrabe, A.Ramello, L.Rami, F.Rana, D. B.Raniwala, R.Raniwala, S.Rasanen, S. S.Rascanu, B. T.Rathee, D.Ratza, V.Ravasenga, I.Read, K. F.Redlich, K.Rehman, A.Reichelt, P.Reidt, F.Ren, X.Renfordt, R.Reolon, A. R.Reshetin, A.Reygers, K.Riabov, V.Ricci, R. A.Richert, T.Richter, M.Riedler, P.Riegler, W.Riggi, F.Ristea, C.Cahuantzi, M. RodriguezRoed, K.Rogochaya, E.Rohr, D.Rohrich, D.Rokita, P. S.Ronchetti, F.Rosas, E. D.Rosnet, P.Rossi, A.Rotondi, A.Roukoutakis, F.Roy, A.Roy, C.Roy, P.Rueda, O. V.Rui, R.Rumyantsev, B.Rustamov, A.Ryabinkin, E.Ryabov, Y.Rybicki, A.Saarinen, S.Sadhu, S.Sadovsky, S.Safarik, K.Saha, S. K.Sahlmuller, B.Sahoo, B.Sahoo, P.Sahoo, R.Sahoo, S.Sahu, P. K.Saini, J.Sakai, S.Saleh, M. A.Salzwedel, J.Sambyal, S.Samsonov, V.Sandoval, A.Sarkar, D.Sarkar, N.Sarma, P.Sas, M. H. P.Scapparone, E.Scarlassara, F.Schaefer, B.Scharenberg, R. P.Scheid, H. S.Schiaua, C.Schicker, R.Schmidt, C.Schmidt, H. R.Schmidt, M. O.Schmidt, M.Schmidt, N. V.Schukraft, J.Schutz, Y.Schwarz, K.Schweda, K.Scioli, G.Scomparin, E.Sefcik, M.Seger, J. E.Sekiguchi, Y.Sekihata, D.Selyuzhenkov, I.Senosi, K.Senyukov, S.Serradilla, E.Sett, P.Sevcenco, A.Shabanov, A.Shabetai, A.Shahoyan, R.Shaikh, W.Shangaraev, A.Sharma, A.Sharma, A.Sharma, M.Sharma, N.Sheikh, A. I.Shigaki, K.Shou, Q.Shtejer, K.Sibiriak, Y.Siddhanta, S.Sielewicz, K. M.Siemiarczuk, T.Silaeva, S.Silvermyr, D.Silvestre, C.Simatovic, G.Simonetti, G.Singaraju, R.Singh, R.Singhal, V.Sinha, T.Sitar, B.Sitta, M.Skaali, T. B.Slupecki, M.Smirnov, N.Snellings, R. J. M.Snellman, T. W.Song, J.Song, M.Soramel, F.Sorensen, S.Sozzi, F.Spiriti, E.Sputowska, I.Srivastava, B. K.Stachel, J.Stan, I.Stankus, P.Stenlund, E.Stocco, D.Storetvedt, M. M.Strmen, P.Suaide, A. A. P.Sugitate, T.Suire, C.Suleymanov, M.Suljic, M.Sultanov, R.Sumbera, M.Sumowidagdo, S.Suzuki, K.Swain, S.Szabo, A.Szarka, I.Tabassam, U.Takahashi, J.Tambave, G. J.Tanaka, N.Tarhini, M.Tariq, M.Tarzila, M. G.Tauro, A.Munoz, G. TejedaTelesca, A.Terasaki, K.Terrevoli, C.Teyssier, B.Thakur, D.Thakur, S.Thomas, D.Thoresen, F.Tieulent, R.Tikhonov, A.Timmins, A. R.Toia, A.Torres, S. R.Tripathy, S.Trogolo, S.Trombetta, G.Tropp, L.Trubnikov, V.Trzaska, W. H.Trzeciak, B. A.Tsuji, T.Tumkin, A.Turrisi, R.Tveter, T. S.Ullaland, K.Umaka, E. N.Uras, A.Usai, G. L.Utrobicic, A.Vala, M.Van der Maarel, J.Van Hoorne, J. W.van Leeuwen, M.Vanat, T.Vyvre, P. VandeVarga, D.Vargas, A.Vargyas, M.Varma, R.Vasileiou, M.Vasiliev, A.Vauthier, A.Doce, O. VazquezVechernin, V.Veen, A. M.Velure, A.Vercellin, E.Limon, S. VergaraVernet, R.Vertesi, R.Vickovic, L.Vigolo, S.Viinikainen, J.Vilakazi, Z.Baillie, O. VillalobosTello, A. VillatoroVinogradov, A.Vinogradov, L.Virgili, T.Vislavicius, V.Vodopyanov, A.Volkl, M. A.Voloshin, K.Voloshin, S. A.Volpe, G.Von Haller, B.Vorobyev, I.Voscek, D.Vranic, D.Vrlakova, J.Wagner, B.Wang, H.Wang, M.Watanabe, D.Watanabe, Y.Weber, M.Weber, S. G.Weiser, D. F.Wenzel, S. C.Wessels, J. P.Westerhoff, U.Whitehead, A. M.Wiechula, J.Wikne, J.Wilk, G.Wilkinson, J.Willems, G. A.Williams, M. C. S.Willsher, E.Windelband, B.Witt, W. E.Yalcin, S.Yamakawa, K.Yang, P.Yano, S.Yin, Z.Yokoyama, H.Yoo, I. -K.Yoon, J. H.Yurchenko, V.Zaccolo, V.Zaman, A.Zampolli, C.Zanoli, H. J. C.Zardoshti, N.Zarochentsev, A.Zavada, P.Zaviyalov, N.Zbroszczyk, H.Zhalov, M.Zhang, H.Zhang, X.Zhang, Y.Zhang, C.Zhang, Z.Zhao, C.Zhigareva, N.Zhou, D.Zhou, Y.Zhou, Z.Zhu, H.Zhu, J.Zichichi, A.Zimmermann, A.Zimmermann, M. B.Zinovjev, G.Zmeskal, J.Zou, S.
DOI
10.1140/epjc/s10052-018-5612-8
발행일
2018-03-26
유형
Article
저널명
European Physical Journal C
78
3