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6 results on '"I., Makhlioueva"'

1. Measurements of D0 production and of decay branching fractions in neutrino–nucleon scattering

Author

Motoaki Miyanishi, Yoshihiro Sato, Nicola D'Ambrosio, V. Khovansky, M. T. Muciaccia, T. Kawamura, Alfredo G. Cocco, G. Rosa, A. Kayis-Topaksu, F. Di Capua, F. R. Spada, I. Tezuka, Ghislain Grégoire, Salvatore Buontempo, K. Hoshino, Toshiyuki Nakano, Th. Delbar, E. Barbuto, Denis Favart, G. De Lellis, P. Migliozzi, M. Messina, P. F. Loverre, G. Romano, Pierre Vilain, S. Sorrentino, L. Ludovici, E. Di Capua, L. Scotto Lavina, R. Santacesaria, M. Nakamura, P. Gorbunov, G. Fiorillo, Chiara Sirignano, A. Artamonov, M. de Jong, Gaston Wilquet, H. Shibuya, C. S. Yoon, P. Tolun, I. Makhlioueva, H. Meinhard, M. Sorrentino, Ilya Tsukerman, Murat Guler, R. van Dantzig, Alexandre Rozanov, S. Kalinin, Kimio Niwa, G. Grella, Masahiro Komatsu, Shigeki Aoki, Utku Kose, A. Satta, B. Van de Vyver, U. Dore, T. Toshito, N. Ushida, K. Winter, K. Narita, Piero Zucchelli, D. Frekers, K. Kodama, J. W. E. Uiterwijk, Rudolf Oldeman, J. Goldberg, Osamu Sato, Cristiano Bozza, N. Nonaka, V. Shamanov, D. Kolev, Biagio Saitta, Jiro Kawada, V. Tioukov, G. De Rosa, Gulsen Onengut, A. Marotta, Michiyuki Chikawa, K. Niu, T. Okusawa, P. Strolin, S. Ogawa, R. Tsenov, T. Hara, J. S. Song, N. Bruski, M. G. Catanesi, J. Panman, and Ivana Hristova

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Scattering, Branching fraction, Nuclear emulsion, Neutrino, Nucleon, Charged current, Charged particle
Abstract

During the years 1994–1997, the emulsion target of the CHORUS detector was exposed to the wide-band neutrino beam of the CERN SPS of 27 GeV average neutrino energy. In total about 100 000 charged-current neutrino interactions were located in the nuclear emulsion target and fully reconstructed. From this sample of events which was based on the data acquired by new automatic scanning systems, 1048 charged-current interactions with a D 0 in the final state were selected by a pattern recognition program and confirmed as neutral-particle decays through visual inspection. The ratio of decay branching fractions of the D 0 into four charged particles to two charged particles was measured to be B ( D 0 → V 4 ) / B ( D 0 → V 2 ) = 0.207 ± 0.016 ± 0.004 . The inclusive measurement of the observed production rate of the D 0 with a decay into four charged prongs in combination with external measurements of this topological branching ratio was used to determine the total D 0 production rate by neutrinos without additional assumption on the branching fractions. The value of this rate relative to the charged-current cross-section was found to be σ ( D 0 ) / σ ( CC ) = 0.0269 ± 0.0018 ± 0.0013 . In addition, the same normalization method was used to deduce the inclusive topological decay rate into final states with neutral particles only. A value of 0.218 ± 0.049 ± 0.036 was found for this branching fraction. From an observed number of three charged six-prong events the branching ratio into six charged particles was determined to be ( 1.2 −0.9 +1.3 ± 0.2 ) × 10 −3 . A measurement of the energy dependence of the D 0 production by neutrinos relative to the total charged-current cross-section is also reported. This measurement was used to deduce for m c , the effective charm-quark mass, a value of ( 1.42 ± 0.08 ) GeV / c 2 .

Published
2005
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2. Measurement of D*+ production in charged-current neutrino interactions

Author

I. Tezuka, Osamu Sato, Mitsuhiro Nakamura, Yoshihiro Sato, H. Meinhard, N. Nonaka, S. Buontempo, Gulsen Onengut, F. Di Capua, Koichi Kodama, Piero Zucchelli, V. Shamanov, G. Grella, K. Niu, T. Okusawa, P. Strolin, D. Kolev, Cristiano Bozza, S. Sorrentino, Biagio Saitta, G. De Rosa, Ilya Tsukerman, J. W. E. Uiterwijk, L. Scotto Lavina, S. Ogawa, Pierre Vilain, H. Shibuya, Nicola D'Ambrosio, Jiro Kawada, V. Tioukov, C. S. Yoon, Alexandre Rozanov, G. Grégoire, A. Kayis-Topaksu, P. F. Loverre, A. Satta, M. T. Muciaccia, B. Van de Vyver, M. Messina, L. Ludovici, K. Winter, T. Kawamura, Alfredo G. Cocco, A. Marotta, P. Gorbunov, J. Panman, Rudolf Oldeman, G. Romano, G. Fiorillo, N. Ushida, A. Artamonov, G. Rosa, J. S. Song, Gaston Wilquet, P. Tolun, K. Hoshino, M. de Jong, Masahiro Komatsu, T. Toshito, J. Goldberg, F. R. Spada, U. Kose, Murat Guler, I. Makhlioueva, Toshiyuki Nakano, R. van Dantzig, K. Narita, E. Barbuto, G. De Lellis, E. Di Capua, Chiara Sirignano, V. Khovansky, Shigeki Aoki, K. Niwa, N. Bruski, Th. Delbar, R. Tsenov, M. G. Catanesi, Ivana Hristova, Michiyuki Chikawa, P. Migliozzi, T. Hara, Motoaki Miyanishi, S. Kalinin, U. Dore, D. Frekers, Denis Favart, and R. Santacesaria

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Physics::Instrumentation and Detectors, Hadron, Neutrino beam, Nuclear physics, High Energy Physics::Experiment, Nuclear emulsion, Production (computer science), Neutrino, Nuclear Experiment, Neutrino oscillation, Charged current
Abstract

During the years 1994–1997, the emulsion target of the CHORUS detector was exposed to the wide-band neutrino beam of the CERN SPS of 27 GeV average neutrino energy. In total about 100 000 charged-current neutrino interactions were located in the nuclear emulsion target and fully reconstructed. A high-statistics sample of neutrino interactions with a D 0 in the final state was collected. Using the decay mode D * + → D 0 π + a production cross-section measurement of the D * + in neutrino–nucleon charged-current interactions was performed. The low Q-value of the decay was used to isolate a sample of candidate events containing a positive hadron with a small p T with respect to the D 0 direction. A signal of 22.1 ± 5.5 D * + events was obtained. The D * + production cross-section relative to the D 0 production cross-section, σ ( D * + ) / σ ( D 0 ) , was estimated to be 0.38 ± 0.09 ( stat ) ± 0.05 ( syst ) . From this result, the fraction of D 0 's produced via the decay of a D * was deduced to be 0.63 ± 0.17 . The D * + production cross-section relative to the ν μ charged-current interaction, σ ( D * + ) / σ ( CC ) , was estimated to be [ 1.02 ± 0.25 ( stat ) ± 0.15 ( syst ) ] % .

Published
2005
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3. Charged-particle multiplicities in charged-current neutrino and anti-neutrino-nucleus interactions

Author

S. Kalinin, E. Di Capua, U. Dore, E. Barbuto, Toshiyuki Nakano, A. Rozanov, K. Winter, G. De Lellis, A. Kayis-Topaksu, Ghislain Grégoire, Cristiano Bozza, Shigeki Aoki, K. Niu, I. Tezuka, M. T. Muciaccia, A. Satta, S. Sorrentino, C. S. Yoon, N. Nonaka, D. Frekers, V. Shamanov, C. Sirignano, G. De Rosa, G. Romano, Nicola D'Ambrosio, J. Panman, P. Strolin, S. Ogawa, Osamu Sato, Y. Sato, G. Fiorillo, Pierre Vilain, H. Meinhard, Mitsuhiro Nakamura, J. Kawada, Masahiro Komatsu, T. Okusawa, T. Toshito, Gulsen Onengut, F. R. Spada, U. Kose, Rudolf Oldeman, A. G. Cocco, Denis Favart, T. Hara, D. Kolev, Michiyuki Chikawa, H. Shibuya, N. Ushida, G. Grella, L. Ludovici, L. Scotto Lavina, K. Narita, Ivana Hristova, P. Gorbunov, Koichi Kodama, R. Santacesaria, G. Rosa, M. de Jong, P. Migliozzi, Gaston Wilquet, P. Tolun, J. W. E. Uiterwijk, Murat Guler, N. Bruski, P. Zucchelli, T. Kawamura, Ilya Tsukerman, K. Niwa, Th. Delbar, B. Van de Vyver, A. Artamonov, R. Tsenov, J. Goldberg, B. Saitta, R. van Dantzig, S. Buontempo, F. Di Capua, I. Makhlioueva, V. Khovansky, P. F. Loverre, J. S. Song, M. G. Catanesi, Motoaki Miyanishi, K. Hoshino, V. Tioukov, A. Marotta, Çukurova Üniversitesi, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CHORUS, A., Kayis Topaksu, G., Onengut, R. v., Dantzig, M. d., Jong, R. G., C., M., Guler, U., Kose, P., Tolun, M. G., Catanesi, M. T., Muciaccia, K., Winter, B. v., De, P., Vilain, G., Wilquet, B., Saitta, E. D., Capua, S., Ogawa, H., Shibuya, I. R., Hristovalo, T., Kawamura, D., Kolev, H., Meinhard, J., Panman, A., Rozanov, R., Tsenov, J. W., E., P., Zucchelli, J., Goldberg, M., Chikawa, J. S., Song, C. S., Yoon, K., Kodama, N., Ushida, S., Aoki, T., Hara, T., Delbar, D., Favart, G., Gregoire, S., Kalinin, I., Makhlioueva, A., Artamonov, P., Gorbunov, V., Khovansky, V., Shamanov, I., Tsukerman, N., Bruski, D., Freker, 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'Ambrosi, DE LELLIS, Giovanni, DE ROSA, Gianfranca, F. D., Capua, Fiorillo, Giuliana, A., Marotta, P., Migliozzi, L. S., Lavina, P., Strolin, V., Tioukov, T., Okusawa, U., Dore, P. F., Loverre, L., Ludovici, G., Rosa, R., Santacesaria, A., Satta, F. R., Spada, E., Barbuto, C., Bozza, G., Grella, G., Romano, C., Sirignano, S., Sorrentino, Y., Sato, and I., Tezuka

Subjects
HIGH-ENERGY, COLLISIONS, Particle physics, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Monte Carlo method, FOS: Physical sciences, PROTON INTERACTIONS, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), neutrino interactions, multiplicity, SEARCH, Ionization, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], DISTRIBUTIONS, Nuclear emulsion, 010306 general physics, Engineering (miscellaneous), Scaling, Charged current, Physics, CHORUS EXPERIMENT, 010308 nuclear & particles physics, NU-P, HADRONS, Multiplicity (mathematics), Charged particle, 3. Good health, High Energy Physics::Experiment, Neutrino, Particle Physics - Experiment, EMULSION, SYSTEM
Abstract

The CHORUS experiment, designed to search for $\nu_{\mu}\to\nu_{\tau}$ oscillations, consists of a nuclear emulsion target and electronic detectors. In this paper, results on the production of charged particles in a small sample of charged-current neutrino-- and anti-neutrino--nucleus interactions at high energy are presented. For each event, the emission angle and the ionization features of the charged particles produced in the interaction are recorded, while the standard kinematic variables are reconstructed using the electronic detectors. The average multiplicities for charged tracks, the pseudo-rapidity distributions, the dispersion in the multiplicity of charged particles and the KNO scaling are studied in different kinematical regions. A study of quasi-elastic topologies performed for the first time in nuclear emulsions is also reported. The results are presented in a form suitable for use in the validation of Monte Carlo generators of neutrino--nucleus interactions., Comment: 17 pages, 5 figures

Published
2007
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4. Measurement of nucleon structure functions in neutrino scattering

Author

M. Messina, Koichi Kodama, J. W. E. Uiterwijk, G. Fiorillo, E. Barbuto, Motoaki Miyanishi, D. Kolev, F. Di Capua, S. Kalinin, R. Santacesaria, Cristiano Bozza, U. Dore, E. Di Capua, H. Shibuya, K. Niwa, Yoshihiro Sato, M. T. Muciaccia, Th. Delbar, Salvatore Buontempo, T. Wolff, J. Goldberg, Osamu Sato, L. Ludovici, K. Winter, Alexandre Rozanov, G. Rosa, D. Rondeshagen, P. Migliozzi, B. Van de Vyver, D. Frekers, Toshiyuki Nakano, G. De Lellis, C. S. Yoon, Masahiro Komatsu, T. Hara, M. Nakamura, P. Gorbunov, G. Grella, Rudolf Oldeman, P. F. Loverre, A. G. Cocco, Denis Favart, Piero Zucchelli, T. Toshito, Nicola D'Ambrosio, N. Nonaka, M. de Jong, Murat Guler, V. Shamanov, C. Sirignano, V. Khovansky, A. Artamonov, A. Bülte, I. Makhlioueva, J. S. Song, R. Tsenov, I. Tezuka, R. van Dantzig, A. Satta, Pierre Vilain, N. Ushida, L. Scotto Lavina, H. Meinhard, Biagio Saitta, V. Tioukov, Gaston Wilquet, R. Santorelli, F. R. Spada, U. Kose, A. Marotta, P. Tolun, M. Serin-Zeyrek, Shigeki Aoki, K. Narita, S. Sorrentino, S. Kama, S. Ogawa, J. Kawada, Gulsen Onengut, K. Niu, T. Okusawa, P. Strolin, G. De Rosa, Michiyuki Chikawa, Ivana Hristova, A. Kayis-Topaksu, Ghislain Grégoire, K. Hoshino, N. Bruski, G. Romano, M. Litmaath, T. Kawamura, M. G. Catanesi, Ilya Tsukerman, J. Panman, Önengüt, G., van Dantzig, R., de Jong, M., Oldeman, R. G. C., Güler, M., Kama, S., Köse, U., Serin Zeyrek, M., Tolun, P., Catanesi, M. G., Muciaccia, M. T., Bülte, A., Winter, K., Van de Vyver, B., Vilain, P., Wilquet, G., Saitta, B., Di Capua, E., Ogawa, S., Shibuya, H., Hristova, I. R., Kayis Topaksu, A., Kawamura, T., Kolev, D., Litmaath, M., Meinhard, H., Panman, J., Rozanov, A., Tsenov, R., Uiterwijk, J. W. E., Zucchelli, P., Goldberg, J., Chikawa, M., Song, J. S., Yoon, C. S., Kodama, K., Ushida, N., Aoki, S., Hara, T., Delbar, T., Favart, D., Grégoire, G., Kalinin, S., Makhlioueva, I., Artamonov, A., Gorbunov, P., Khovansky, V., Shamanov, V., Tsukerman, I., Bruski, N., Frekers, D., Rondeshagen, D., Wolff, T., 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, Francesco, Fiorillo, Giuliana, Marotta, A., Messina, M., Migliozzi, P., Santorelli, R., Scotto Lavina, L., Strolin, P., Tioukov, V., Okusawa, T., Dore, U., Loverre, P. F., Ludovici, L., Rosa, G., Santacesaria, R., Satta, A., Spada, F. R., Barbuto, E., Bozza, C., Grella, G., Romano, G., Sirignano, C., Sorrentino, S., Sato, Y., Tezuka, I., UCL - SC/PHYS - Département de physique, Çukurova Üniversitesi, G., Onengut, R. v., Dantzig, M. d., Jong, R. G., C., M., Guler, S., Kama, U., Kose, M., Serin Zeyrek, P., Tolun, M. G., Catanesi, M. T., Muciaccia, A., Bulte, K., Winter, B. V., De, P., Vilain, G., Wilquet, B., Saitta, E. D., Capua, S., Ogawa, H., Shibuya, I. R., Hristova, A., Kayis Topaksu, T., Kawamura, D., Kolev, M., Litmaath, H., Meinhard, J., Panman, A., Rozanov, R., Tsenov, J. W., E., P., Zuechelli, J., Goldberg, M., Chikawa, J. S., Song, C. S., Yoon, K., Kodama, N., Ushida, S., Aoki, T., Hara, T., Delbar, D., Favart, G., Gregoire, S., Kalinin, I., Makhlioueva, A., Artamonov, P., Gorbunov, V., Khovansky, V., Shamanov, I., Tsukerman, N., Bruski, D., Freker, D., Rondeshagen, T., Wolff, 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, DE LELLIS, Giovanni, DE ROSA, Gianfranca, F. D., Capua, A., Marotta, M., Messina, P., Mighozzi, R., Santorelli, L. S., Lavina, Strolin, PAOLO EMILIO, V., Tioukov, T., Okusawa, U., Dore, P. F., Loverre, L., Ludovici, G., Rosa, R., Santacesaria, A., Satta, F. R., Spada, E., Barbuto, C., Bozza, G., Grella, G., Romano, C., Sirignano, S., Sorrentino, Y., Sato, and I., Tezuka

Subjects
Nuclear and High Energy Physics, Particle physics, Physics::Instrumentation and Detectors, Nuclear Theory, CROSS-SECTIONS, Nuclear physics, Pion, Alte energie, fisica del neutrino, DEPENDENCE, SEARCH, Nuclear Experiment, Charged current, OSCILLATION, Physics, CHORUS EXPERIMENT, Large Hadron Collider, Muon, Oscillation, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Neutrino, Nucleon, Particle Physics - Experiment, SYSTEM, Beam (structure)
Abstract

After completion of the data taking for the ?µ›?? oscillation search, the CHORUS lead-scintillator calorimeter was used in the 1998 run as an active target. High-statistics samples of charged-current interactions were collected in the CERN SPS west area neutrino beam. This beam contained predominantly muon (anti-)neutrinos from sign-selected pions and kaons. We measure the flux and energy spectrum of the incident neutrinos and compare them with beam simulations. The neutrino-nucleon and anti-neutrino-nucleon differential cross-sections are measured in the range 0.01

Published
2006

5. Measurement of charm production in antineutrino charged-current interactions

Author

Onengüt, G, Van Dantzig, R, De Jong, M, Konijn, J, Melzer, O, Oldeman, R G C, Pesen, E, Van der Poel, C A F J, Visschers, J L, Güler, M, Köse, U, Serin-Zeyrek, M, Kama, S, 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, Klaus, Van de Vyver, B, Vilain, P, Wilquet, G, Saitta, B, Di Capua, E, Ogawa, S, Shibuya, H, Artamonov, A V, Brunner, J, Chizhov, M, Cussans, D G, Doucet, M, Fabre, Jean-Paul, Hristova, I R, Kawamura, T, Kolev, D, Litmaath, M, Meinhard, H, Panman, J, Papadopoulos, I M, Ricciardi, S, Rozanov, A, Saltzberg, D, Tsenov, R V, 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, Makhlyoueva, I V, Gorbunov, P, Khovanskii, V D, Shamanov, V V, Tsukerman, I, Bruski, N, Frekers, D, Rondeshagen, D, Wolff, T, 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, Santorelli, R, Scotto-Lavina, L, Strolin, P, Tioukov, V, Nakamura, K, Okusawa, T, Dore, U, FLoverre, P, Ludovici, L, Maslennikov, A L, Righini, P, Rosa, G, Santacesaria, R, Satta, A, Spada, F R, Barbuto, E, Bozza, C, Grella, G, Romano, G, Sirignano, C, Sorrentino, S, Sato, Y, Tezuka, I, Other Research IHEF (IoP, FNWI), UCL - SC/PHYS - Département de physique, Çukurova Üniversitesi, 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, Francesco, Ereditato, A., Fiorillo, Giuliana, 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, C., Grella, G., Romano, G., Sirignano, C., Sorrentino, S., Sato, Y., Tezuka, I., G., Onengut, R. v., Dantzig, M. d., Jong, O., Melzer, R. G., C., E., Pesen, J. L., Visscher, M., Guler, U., Kose, M., Serin Zeyrek, R., Sever, P., Tolun, M. T., Zeyrek, M. G., Catanesi, M. D., Serio, M., Ieva, M. T., Muciaccia, E., Radicioni, S., Simone, A., Bulte, K., Winter, B. V., De, P., Vilain, G., Wilquet, B., Saitta, E. D., 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., Papadopoulo, S., Ricciardi, A., Rozanov, R., Tsenov, J. W., E., P., Zucchelli, J., Goldberg, M., Chikawa, J. S., Song, C. S., Yoon, K., Kodama, N., Ushida, S., Aoki, T., Hara, T., Delbar, D., Favart, G., Gregoire, S., Kalinin, I., Makhlioueva, P., Gorbunov, V., Khovansky, V., Shamanov, I., Tsukerman, N., Bruski, D., Freker, 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, DE LELLIS, Giovanni, DE ROSA, Gianfranca, A., Ereditato, A., Marotta, M., Messina, P., Migliozzi, C., Pistillo, L. S., 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, C., Bozza, G., Grella, G., Romano, C., Sirignano, S., Sorrentino, Y., Sato, and I., Tezuka

Subjects
Physics, NEUTRINO INTERACTIONS, CHORUS EXPERIMENT, Nuclear and High Energy Physics, Particle physics, Muon, Large Hadron Collider, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Charge (physics), BEAMS, EVENTS, Nuclear physics, OPPOSITE-SIGN DIMUONS, High Energy Physics::Experiment, Production (computer science), Charm (quantum number), Neutrino, Nuclear Experiment, Particle Physics - Experiment, Charged current, Beam (structure)
Abstract

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 10 6 neutrino interactions. A measurement of ?¯µ-induced charm production is performed by using the presence of a 5% ?¯µ component in the ?µ 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 100000 were located in the emulsion target and fully reconstructed. By requiring a positive muon charge as determined by the CHORUS muon spectrometer, 32?¯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 ?(?¯µN›µ+c¯X)/?(?¯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 (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. © 2004 Elsevier B.V. All rights reserved. Bundesministerium für Bildung und Forschung Promotion and Mutual Aid Corporation for Private Schools of Japan Grant Foundation: KRF-2003-005-C00014 Israel Science Foundation: 328/94 CERN Brussels Instituut voor Milieubeheer Instituto Nazionale di Fisica Nucleare Foundation for Fundamental Research on Matter Korean Foundation for Cancer Research We gratefully acknowledge the help and support of the neutrino-beam staff and of the numerous technical collaborators who contributed to the detector construction, operation, emulsion pouring, development, and scanning. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires and the Interuniversitair Instituut voor Kernwetenschappen (Belgium); the Israel Science Foundation (Grant 328/94) and the Technion Vice President Fund for the Promotion of Research (Israel); CERN (Geneva, Switzerland); the German Bundesministerium für Bildung und Forschung (Germany); the Institute of Theoretical and Experimental Physics (Moscow, Russia); the Istituto Nazionale di Fisica Nucleare (Italy); the Promotion and Mutual Aid Corporation for Private Schools of Japan and Japan Society for the Promotion of Science (Japan); Korea Research Foundation Grant (KRF-2003-005-C00014) (Republic of Korea); the Foundation for Fundamental Research on Matter FOM and the National Scientific Research Organization NWO (The Netherlands); and the Scientific, and Technical Research Council of Turkey (Turkey). We gratefully acknowledge their support.

Published
2004
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6. Measurement of charm production in neutrino charged-current interactions

Author

Kayis Topaksu, A., Onengut, G., Dantzig, R. V., Jong, M. D., Van Dantzig, R., De Jong, M., Oldeman, P. G. C., Oldeman, R. G. C., Guler, M., Kose, U., Tolun, P., Catanesi, M. G., Muciaccia, M. T., Winter, K., B. V., De, Van De Vyver, B., Vilain, P., Wilquet, G., Saitta, B., Capua, E. D., Di Capua, E., Ogawa, S., Shibuya, H., Hristova, I. R., Kawamura, T., Kolev, D., Meinhard, H., Panman, J., Rozanov, A., Tsenov, R., Uiterwijk, J. W. E., Zucchelli, P., Goldbergll, Goldberg, J., Chikawa, M., Song, J. S., Yoon, C. S., Kodama, K., Ushida, N., Aoki, S., Hara, T., Delbar, T., Favart, D., Gregoire, G., Kalinin, S., Makhlioueva, I., Artamonov, A., 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., Lellis, G. D., De Lellis, G., De Rosa, G., Di Capua, F., Fiorillo, G., Marotta, A., Messina, M., Migliozzi, P., Lavina, L. S., Scotto Lavina, L., Strolin, P., Tioukov, V., Okusawa, T., Dore, U., Loverre, Pier Ferruccio, Ludovici, L., Rosa, Giovanni, Capua, F. D., Dore, Ubaldo, Loverre, P. F., Rosa, G., Santacesaria, R., Satta, A., Spada, F. R., Barbuto, E., Bozza, C., Grella, G., Romano, G., Sirignano, C., Sorrentino, S., Sato, Y., Tezuka, I., Çukurova Üniversitesi, A., Kayis Topaksu, G., Önengüt, R., van Dantzig, M., de Jong, R. G. C., Oldeman, M., Güler, U., Köse, P., Tolun, M. G., Catanesi, M. T., Muciaccia, K., Winter, B., Van de Vyver, P., Vilain, G., Wilquet, B., Saitta, E., Di Capua, S., Ogawa, H., Shibuya, I. R., Hristova, T., Kawamura, D., Kolev, H., Meinhard, J., Panman, A., Rozanov, R., Tsenov, J. W. E., Uiterwijk, P., Zucchelli, J., Goldberg, M., Chikawa, J. S., Song, C. S., Yoon, K., Kodama, N., Ushida, S., Aoki, T., Hara, T., Delbar, D., Favart, G., Grégoire, S., Kalinin, I., Makhlioueva, A., Artamonov, P., Gorbunov, V., Khovansky, V., Shamanov, I., Tsukerman, N., Bruski, D., Freker, 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, DE LELLIS, Giovanni, DE ROSA, Gianfranca, DI CAPUA, Francesco, Fiorillo, Giuliana, A., Marotta, M., Messina, P., Migliozzi, L., Scotto Lavina, Strolin, PAOLO EMILIO, V., Tioukov, T., Okusawa, U., Dore, P. F., Loverre, L., Ludovici, G., Rosa, R., Santacesaria, A., Satta, F. R., Spada, E., Barbuto, C., Bozza, G., Grella, G., Romano, C., Sirignano, S., Sorrentino, Y., Sato, and I., Tezuka

Subjects
Physics, Particle physics, Muon, Large Hadron Collider, Physics::Instrumentation and Detectors, Hadron, High Energy Physics::Phenomenology, General Physics and Astronomy, FOS: Physical sciences, Hadronization, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Nuclear emulsion, High Energy Physics::Experiment, Charm (quantum number), Neutrino, Nuclear Experiment, Charged current, Particle Physics - Experiment
Abstract

The nuclear emulsion target of the CHORUS detector was exposed to the wide-band neutrino beam of the CERN SPS of 27 GeV average neutrino energy from 1994 to 1997. In total about 100000 charged-current neutrino interactions with at least one identified muon were located in the emulsion target and fully reconstructed, using newly developed automated scanning systems. Charmed particles were searched for by a program recognizing particle decays. The observation of the decay in nuclear emulsion makes it possible to select a sample with very low background and minimal kinematical bias. 2013 charged-current interactions with a charmed hadron candidate in the final state were selected and confirmed through visual inspection. The charm production rate induced by neutrinos relative to the charged-current cross-section is measured to be sigma(nu_mu N -> mu- C X)/sigma(CC) = (5.75 +-0.32 stat +-0.30 syst)%. The charm production cross-section as a function of the neutrino energy is also obtained. The results are in good agreement with previous measurements. The charm-quark hadronization produces the following charmed hadrons with relative fractions (in %): f_Dzero = 43.7+-4.5, f_Lambda_c^plus = 19.2+-4.2, f_Dplus = 25.3+-4.2, and f_D_splus = 11.8+-4.7., 16 pages, 5 figures

Published
2011

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