Evidence for Nonnucleonic Effects in the Threshold Electrodisintegration of the Deuteron at High Momentum Transfer

S. Auffret; J. -M. Cavedon; J. -C. Clemens; B. Frois; D. Goutte; M. Huet; F. P. Juster; P. Leconte; J. Martino; Y. Mizuno; X. H. Phan; S. Platchkov; I. Sick

doi:10.1103/PhysRevLett.55.1362

Evidence for Nonnucleonic Effects in the Threshold Electrodisintegration of the Deuteron at High Momentum Transfer

S. Auffret, J. -M. Cavedon, J. -C. Clemens, B. Frois, D. Goutte, M. Huet, F. P. Juster, P. Leconte, J. Martino, Y. Mizuno, X. H. Phan, S. Platchkov, and I. Sick

Phys. Rev. Lett. 55, 1362 – Published 23 September 1985

Abstract

Deuteron electrodisintegration at threshold has been measured between $Q^{2} = 7 and 28$ ${fm}^{- 2}$ . Nonnucleonic degrees of freedom are essential for the interpretation of the data. In particular, beyond 20 ${fm}^{- 2}$ the data provide evidence for processes beyond the conventional one-pion exchange.