Contribution of initial state interactions to the three-nucleon absorption of pions by 3He

G Backenstoss,H Döbbeling,A Lehmann,M Wildi,H Breuer,R Trezeciak,A Hoffart,D Rowntree,M Kroedel,H Ullrich,N.K Gregory,B Kotliński,T Dooling,D Bosnar ,Jürgen Köhler ,N Šimičević ,M Furić ,M H Wang ,Tomislav Petković ,G S Kyle ,C H Q Ingram ,A Klein ,M Wang ,H J Weyer ,R Redwine ,U Sennhauser ,P A M Gram ,K Koch ,K Michaelian ,A Mateos ,Kenneth E Wilson

doi:10.1016/0370-2693(96)00326-7

Contribution of initial state interactions to the three-nucleon absorption of pions by 3He

G Backenstoss, H Döbbeling + Show 29 more

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https://doi.org/10.1016/0370-2693(96)00326-7

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Journal: Physics Letters B	Publication Date: Jun 1, 1996
Citations: 16

Affiliation: University of Basel, Paul Scherrer Institute, University of Maryland, College Park, Karlsruhe University of Education, Massachusetts Institute of Technology, Old Dominion University, University of Zagreb, New Mexico State University

#Absorption Of Positive Pions #Absorption Of Pions + Show 8 more

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Abstract

The distributions of protons after the absorption of positive pions by 3He at 118, 162 and 239 MeV are presented. A decomposition of the three-nucleon cross section in terms of initial state interactions and other processes is given, based upon simple models. A clear signal of initial state interactions is visible in the data, diminishing at the lower energies.

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