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Observation of neutrino induced diffractive D/sub s/*/sup +/ production and |
Author
Annis P. Aoki S. Artamonov A. Barbuto E. di Bartolomeo A. Bonekamper D. Bozza C. Brooijmans G. Brunner J. Bulte A. Buontempo S. Capone A. Cassol F. Catanesi MG. Chikawa M. Cocco A. Cussans D. D'Ambr
sio N. van Dantzig R. De Lellis G. De Pedis D. Di Capua E. Dore U. El Aidi R. Ereditato A. Favart D. Ferreira R. Fiorillo G. Frekers D. Goldberg J. Gorbunov P. Gregoire G. Grella G. Hara T. Herin J.
Hoshino K. Iovane G. Ishii Y. de Jong M. Kawamura T. Kayis A. Kazuno M. Khovansky V. Kodama K. Komatsu M. Konijn J. Kotaka Y. Kozaki T. Litmaath M. Loverre PF. Ludovici L. Meinhard H. Melzer O. Mess
na M. Migliozzi P. Miyanishi M. Muciaccia MT. Nakamura K. Nakamura M. Nakano T. Niu E. Niu K. Niwa K. Obayashi Y. Ogawa S. Okusawa T. Oldeman RGC. Onengut G. Overas H. Palladino V. Panman J. Papadop
ulos IM. Park IG. Pesen E. Piredda G. van der Poel CAFJ. Radicioni E. Ricciardi S. Righini P. Romano G. Rondeshagen D. Rosa G. Saltzberg D. Saitta B. Santacesaria R. Sato O. Sato Y. Satta A. Shamano
V. Shibuya H. Simone S. Song JS. Sorrentino S. Strolin P. Tezuka I. Tioukov V. Tolun P. Toshito T. Tsenov R. Uiterwijk JWE. Ushida N. Vander Donckt M. Van de Vyver B. Vilain P. Visschers JL. Vivolo
L. Weinheimer C. Wilquet G. Winter K. Wolff T. Wong H. Yoon CS. Zeyrek MT. Zucchelli P.
Institution
CHORUS Collaboration, CERN, Geneva, Switzerland.
Title
Observation of neutrino induced diffractive D/sub s/*/sup +/ production and
subsequent decay D/sub s/*/sup +/ to D/sub s//sup +/ to tau /sup +/ to mu
/sup +/.
Source
Physics Letters B, vol.435, no.3-4, 10 Sept. 1998, pp.458-64. Publisher:
Elsevier, Netherlands.
Abstract
We report on the first direct observation of a neutrino induced charged-current interaction with two subsequent decays of short-lived particles close to the interaction vertex. This rare double-kink
signature in the CHORUS emulsion target is interpreted as a D/sub s/*/sup +/ production followed by the decay chain D/sub s/*/sup +/ to D/sub s//sup +/ gamma , D/sub s//sup +/ to tau /sup +/ nu /sub
tau /, tau /sup +/ to mu /sup +/ nu /sub mu / nu /sub tau /. The event is characterised by small Q/sup 2/ and small four-momentum transfer squared t to the target nucleon, which indicates a diffract
ve production mechanism. A complete analysis of the event is presented. (11 References).
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Timo Kellmann
automatically created: July 2001
