A precision measurement of charm dimuon production in neutrino interactions from the NOMAD experiment

O. Samoylov, R. Petti, S. Alekhin, P. Astier, D. Autiero, A. Baldisseri, M. Baldo-Ceolin, M. Banner, G. Bassompierre, K. Benslama, N. Besson, I. Bird, B. Blumenfeld, F. Bobisut, J. Bouchez, S. Boyd, A. Bueno, S. Bunyatov, L. Camilleri, A. CardiniP. W. Cattaneo, V. Cavasinni, A. Cervera-Villanueva, R. Challis, A. Chukanov, G. Collazuol, G. Conforto, C. Conta, M. Contalbrigo, R. Cousins, H. Degaudenzi, A. De Santo, T. Del Prete, L. Di Lella, E. do Couto e Silva, J. Dumarchez, H. Duyang, M. Ellis, G. J. Feldman, R. Ferrari, D. Ferrère, V. Flaminio, M. Fraternali, J. M. Gaillard, E. Gangler, A. Geiser, D. Geppert, D. Gibin, S. Gninenko, A. Godley, J. J. Gomez-Cadenas, J. Gosset, C. Gößling, M. Gouanère, A. Grant, G. Graziani, A. Guglielmi, C. Hagner, J. Hernando, P. Hurst, N. Hyett, E. Iacopini, C. Joseph, F. Juget, N. Kent, O. Klimov, J. Kokkonen, A. Kovzelev, A. Krasnoperov, J. J. Kim, M. Kirsanov, S. Kulagin, C. T. Kullenberg, S. Lacaprara, C. Lachaud, B. Lakić, A. Lanza, L. La Rotonda, M. Laveder, A. Letessier-Selvon, J. M. Levy, J. Libo, L. Linssen, A. Ljubičić, J. Long, A. Lupi, V. Lyubushkin, A. Marchionni, F. Martelli, X. Méchain, J. P. Mendiburu, J. P. Meyer, M. Mezzetto, S. R. Mishra, G. F. Moorhead, D. Naumov, P. Nédélec, Yu Nefedov, C. Nguyen-Mau, D. Orestano, F. Pastore, L. S. Peak, E. Pennacchio, H. Pessard, A. Placci, G. Polesello, D. Pollmann, A. Polyarush, C. Poulsen, B. Popov, L. Rebuffi, J. Rico, P. Riemann, C. Roda, A. Rubbia, F. Salvatore, K. Schahmaneche, B. Schmidt, T. Schmidt, A. Sconza, A. M. Scott, M. Sevior, D. Sillou, F. J.P. Soler, G. Sozzi, D. Steele, U. Stiegler, M. Stipčević, Th Stolarczyk, M. Tareb-Reyes, G. N. Taylor, V. Tereshchenko, X. C. Tian, A. Toropin, A. M. Touchard, S. N. Tovey, M. T. Tran, E. Tsesmelis, J. Ulrichs, L. Vacavant, M. Valdata-Nappi, V. Valuev, F. Vannucci, K. E. Varvell, M. Veltri, V. Vercesi, G. Vidal-Sitjes, J. M. Vieira, T. Vinogradova, F. V. Weber, T. Weisse, F. F. Wilson, L. J. Winton, Q. Wu, B. D. Yabsley, H. Zaccone, K. Zuber, P. Zuccon

Research output: Contribution to journalArticle

37 Scopus citations

Abstract

We present our new measurement of the cross-section for charm dimuon production in neutrino-iron interactions based upon the full statistics collected by the NOMAD experiment. After background subtraction we observe 15 344 charm dimuon events, providing the largest sample currently available. The analysis exploits the large inclusive charged current sample - about 9×106 events after all analysis cuts - and the high resolution NOMAD detector to constrain the total systematic uncertainty on the ratio of charm dimuon to inclusive Charged Current (CC) cross-sections to ~2%. We also perform a fit to the NOMAD data to extract the charm production parameters and the strange quark sea content of the nucleon within the NLO QCD approximation. We obtain a value of mc(mc)=1.159±0.075 GeV/c2 for the running mass of the charm quark in the MS scheme and a strange quark sea suppression factor of κs=0.591±0.019 at Q2=20 GeV2/c2.

Original languageEnglish (US)
Pages (from-to)339-375
Number of pages37
JournalNuclear Physics B
Volume876
Issue number2
DOIs
StatePublished - Nov 11 2013
Externally publishedYes

Keywords

  • Charm production
  • Dimuon charm production
  • Neutrino interactions
  • Strange quark content of the nucleon

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Samoylov, O., Petti, R., Alekhin, S., Astier, P., Autiero, D., Baldisseri, A., Baldo-Ceolin, M., Banner, M., Bassompierre, G., Benslama, K., Besson, N., Bird, I., Blumenfeld, B., Bobisut, F., Bouchez, J., Boyd, S., Bueno, A., Bunyatov, S., Camilleri, L., ... Zuccon, P. (2013). A precision measurement of charm dimuon production in neutrino interactions from the NOMAD experiment. Nuclear Physics B, 876(2), 339-375. https://doi.org/10.1016/j.nuclphysb.2013.08.021