Intranuclear cascade in the interactions of neutrinos with neon nuclei

Vataga, ES Murzin, VS Aderholz, M Ammosov, VV Asratian, AS Barth, M Bingham, HH Brucker, EB Burnstein, RA Chatterjee, TK Clayton, EC Ermolov, PF Erofeeva, IN Faulkner, PJW Gapienko, GS Guy, J Hanlon, J Harigel, G Ivanilov, AA Jain, V Jones, GT Jones, MD Kafka, T Kaftanov, VS Kalelkar, M Kohli, JM Korablev, VA Kubantsev, MA Lauko, M Lukina, OY Lys, J Lyutov, SI Marage, P Milburn, RH Mittra, IS Morrison, DRO Moskalev, VI Myatt, G Naon, R Passmore, D Peters, MW Rubin, H Sacton, J Schneps, J Singh, JB Singh, S Smart, W Smirnova, LN Stamer, P Varvell, KE Venus, W Willocq, S

Es. Vataga et al., Intranuclear cascade in the interactions of neutrinos with neon nuclei, PHYS ATOM N, 63(9), 2000, pp. 1574-1583

26

INGLESE

Article

Physics

PHYSICS OF ATOMIC NUCLEI

1063-7788 → ACNP

63

9

2000

1574 - 1583

ISI

1063-7788(200009)63:9<1574:ICITIO>2.0.ZU;2-A

A method is developed for separating nu N interactions from interactions in volving an intranuclear cascade in nu Ne scattering at a mean neutrino ener gy of 145 GeV. The fraction of events featuring a cascade is evaluated by u sing a sample of nu Ne charged-current interactions, It is found that the m ultiplicity of charged particles in the forward direction takes the same va lue for events with and without a cascade for 4 < W-2 < 550 GeV2. In the ba ckward direction, cascade events have the charge multiplicity higher than t he multiplicity for cascade-free events by 2.36 units. It is found that par ticles with momenta less than 2 GeV/c make a dominant contribution to the r escattering process. A depletion of the fastest particles for W-2 < 50 GeV2 is observed, in accord with the formation-time concept. (C) 2000 MAIK "Nau ka/Interperiodica".