Backward pd scattering with a realistic model of N and N* exchanges

Sharma, J. S. ; Bhasin, V. S. ; Mitra, A. N. (1971) Backward pd scattering with a realistic model of N and N* exchanges Nuclear Physics, 35 (2). pp. 466-480. ISSN 0550-3213

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The differential cross section for pd scattering in the GeV range has been calculated in terms of the contributions of N and N* exchanges. For the N-exchange contribution a relativistic deuteron from factor with appropriate S- and D-wave components is employed. For the N* exchanges, which are calculated in terms of a model of dNN* vertex developed separately by one of us (ANM), all the observed I = 1/2 resonances up to 2 GeV (both positive and negative parities) are taken into account. The agreement with experiment at 1 GeV is extremely good over the entire angular range, a result in which contributions of the P11, P'11 and D13 exchanges are found to be extremely important. At a higher energies, while the agreement is good near the backward direction, the F15 exchange produces some distortion at intermediate angles. A possible mechanism for correcting the discrepancy is suggested.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:34597
Deposited On:09 Apr 2011 07:27
Last Modified:09 Apr 2011 07:27

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