Real-to-imaginary ratio of the pp forward elastic scattering amplitude in the momentum range between 180 and 590 MeV/c

W. Brückner, H. Döbbeling, F. Güttner, D. Von Harrach, H. Kneis, S. Majewski, M. Nomachi, S. Paul, B. Povh, R. D. Ransome, T. A. Shibata, M. Treichel, Th Walcher

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Abstract

The real-to-imaginary ratio of the pp forward elastic scattering amplitude has been measured at the LEAR facility of CERN by the Coulomb-nuclear interference method at seven beam momenta between 181 and 590 MeV/c. The ratio is positive at 590 MeV/c, becomes negative below 500 MeV/c, reaches a minimum at 260 MeV/c and then crosses zero again at about 230 MeV/c.

Original languageEnglish
Pages (from-to)180-185
Number of pages6
JournalPhysics Letters B
Volume158
Issue number2
DOIs
StatePublished - 8 Aug 1985
Externally publishedYes

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