FIZIKA B 12 (2003)  1, 81 - 84

LETTER TO THE EDITOR

HIGH-STATISTICS MEASUREMENT OF DOUBLE-PHOTON AND DILEPTON PRODUCTION IN THE PROTON-PROTON SCATTERING AT 190 MeV

R. ČAPLAR^a, J. C. S. BACELAR^b, R. CASTELIJNS^b, K. ERMISCH^b, I. GAŠPARIĆ^a, M. N. HARAKEH^b, N. KALANTAR-NAYESTANAKI^b, M. KIS^b, H. LÖHNER^b and M. M. SHAFIEI^b

^aRuđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia
^bKernfysisch Versneller Instituut, Zernickelaan 25, NL 9747 AA Groningen, The Netherlands

Paper devoted to honour the memory of Professor Nikola Cindro

Received 4 April 2003; revised manuscript received 6 June 2003
Accepted 16 June 2003        Online 20 September 2003

The first high-statistics measurement of double-photon and dilepton yields in proton-proton scattering below the pion threshold has been performed. The data obtained will allow a detailed study of the proton-proton interaction.

PACS numbers: 21.30.-x, 13.75.Cs, 13.20.Cz
UDC 539.171, 537.531

Keywords: proton-proton scattering, bremsstrahlung, double-photon, virtual bremsstrahlung, dilepton

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