Measurement of charm production in antineutrino charged-current interactions

Önengüt, G.; van Dantzig, R.; de Jong, M.; Melzer, O.; Oldeman, R. G. C.; Pesen, E.; Visschers, J. L.; Güler, M.; Köse, U.; Serin Zeyrek, M.; Sever, R.; Tolun, P.; Zeyrek, M. T.; Catanesi, M. G.; De Serio, M.; Ieva, M.; Muciaccia, M. T.; Radicioni, E.; Simone, S.; Bülte, A.; Winter, K.; Van de Vyver, B.; Vilain, P.; Wilquet, G.; Saitta, B.; Di Capua, E.; Ogawa, S.; Shibuya, H.; Artamonov, A.; Chizhov, M.; Doucet, M.; Hristova, I. R.; Kayis Topaksu, A.; Kawamura, T.; Kolev, D.; Meinhard, H.; Panman, J.; Papadopoulos, I. M.; Ricciardi, S.; Rozanov, A.; Tsenov, R.; Uiterwijk, J. W. E.; Zucchelli, P.; Goldberg, J.; Chikawa, M.; Arik, E.; Song, J. S.; Yoon, C. S.; Kodama, K.; Ushida, N.; Aoki, S.; Hara, T.; Delbar, T.; Favart, D.; Grégoire, G.; Kalinin, S.; Makhlioueva, I.; Gorbunov, P.; Khovansky, V.; Shamanov, V.; Tsukerman, I.; Bruski, N.; Frekers, D.; Hoshino, K.; Kawada, J.; Komatsu, M.; Miyanishi, M.; Nakamura, M.; Nakano, T.; Narita, K.; Niu, K.; Niwa, K.; Nonaka, N.; Sato, O.; Toshito, T.; Buontempo, S.; Cocco, A. G.; D'Ambrosio, N.; De Lellis, G.; De Rosa, G.; Di Capua, F.; Ereditato, A.; Fiorillo, G.; Marotta, A.; Messina, M.; Migliozzi, P.; Pistillo, C.; Scotto Lavina, L.; Strolin, P.; Tioukov, V.; Nakamura, K.; Okusawa, T.; Dore, U.; Loverre, P. F.; Ludovici, L.; Righini, P.; Rosa, G.; Santacesaria, R.; Satta, A.; Spada, F. R.; Barbuto, E.; Bozza, Cristiano; Grella, Giuseppe; Romano, G.; Sirignano, Chiara; Sorrentino, S.; Sato, Y.; Tezuka, I.

doi:10.1016/j.physletb.2004.10.037

During the years 1994–1997, the emulsion target of the CHORUS detector was exposed to the wide-band neutrino beam of the CERN SPS collecting about 106 neutrino interactions. A measurement of View the MathML sourceν¯μ-induced charm production is performed by using the presence of a 5% View the MathML sourceν¯μ component in the νμνμ beam. The measurement takes advantage of the capability to observe the decay topology in the emulsion. The analysis is based on a sample of charged-current interactions with at least one identified muon. About 100 000 were located in the emulsion target and fully reconstructed. By requiring a positive muon charge as determined by the CHORUS muon spectrometer, View the MathML source32ν¯μ-induced charm events were observed with an estimated background of 3.2 events. At an average antineutrino energy in the neutrino beam of 18 GeV, the charm production rate induced by antineutrinos is measured to be View the MathML sourceσ(ν¯μN→μ+c¯X)/σ(ν¯μN→μ+X)=(5.0−0.9+1.4(stat)±0.7(syst))%. The ratio between neutral and charged charm production rates in this process is View the MathML source(2.6−1.0+1.7(stat)±0.8(syst)). The charm production rate as a function of the antineutrino energy is found to be in good agreement with previous results derived from di-lepton data.

Titolo:	Measurement of charm production in antineutrino charged-current interactions
Autori:	G. Önengüt R. van Dantzig M. de Jong O. Melzer R. G. C. Oldeman E. Pesen J. L. Visschers M. Güler U. Köse M. Serin Zeyrek R. Sever P. Tolun M. T. Zeyrek M. G. Catanesi M. De Serio M. Ieva M. T. Muciaccia E. Radicioni S. Simone A. Bülte K. Winter B. Van de Vyver P. Vilain G. Wilquet B. Saitta E. Di Capua S. Ogawa H. Shibuya A. Artamonov M. Chizhov M. Doucet I. R. Hristova A. Kayis Topaksu T. Kawamura D. Kolev H. Meinhard J. Panman I. M. Papadopoulos S. Ricciardi A. Rozanov R. Tsenov J. W. E. Uiterwijk P. Zucchelli J. Goldberg M. Chikawa E. Arik J. S. Song C. S. Yoon K. Kodama N. Ushida S. Aoki T. Hara T. Delbar D. Favart G. Grégoire S. Kalinin I. Makhlioueva P. Gorbunov V. Khovansky V. Shamanov I. Tsukerman N. Bruski D. Frekers K. Hoshino J. Kawada M. Komatsu M. Miyanishi M. Nakamura T. Nakano K. Narita K. Niu K. Niwa N. Nonaka O. Sato T. Toshito S. Buontempo A. G. Cocco N. D'Ambrosio G. De Lellis G. De Rosa F. Di Capua A. Ereditato G. Fiorillo A. Marotta M. Messina P. Migliozzi C. Pistillo L. Scotto Lavina P. Strolin V. Tioukov K. Nakamura T. Okusawa U. Dore P. F. Loverre L. Ludovici P. Righini G. Rosa R. Santacesaria A. Satta F. R. Spada E. Barbuto BOZZA, Cristiano GRELLA, Giuseppe G. Romano SIRIGNANO, CHIARA S. Sorrentino Y. Sato I. Tezuka mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2004
Rivista:	PHYSICS LETTERS. SECTION B
Handle:	http://hdl.handle.net/11386/4300853
Appare nelle tipologie:	1.1.1 Articolo su rivista con DOI

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