2018 Impact factor 4.843
Particles and Fields
Eur. Phys. J. C 9, 267-269
DOI 10.1007/s100529900053

Pion exchange and the H1 forward spectrometer data

A.W. Thomas - C. Boros

Department of Physics and Mathematical Physics and Special Research Centre for the Subatomic Structure of Matter,
University of Adelaide, SA 5005, Australia

Received: 4 December 1998 / Revised version: 1 February 1999 / Published online: 27 April 1999

We point out that the $\Delta\pi$ component of the nucleon wave function is vital to the interpretation of the recent H1 data for leading baryon production. While the n/p ratio is equal to two with the $N\pi$ component alone, the inclusion of the $\Delta\pi$ component brings this ratio very near to unity, as observed in the experiment. This result demonstrates that pion exchange can not only account for leading neutron but also for a large fraction of the leading proton production.

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