Measurement of elastic scattering in antiproton-proton collisions at 52.8 GeV centre-of-mass energy |
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Authors: | M Ambrosio G Anzivino G Barbarino G Carboni V Cavasinni T Del Prete PD Grannis D Lloyd Owen M Morganti G Paternoster S Patricelli M Valdata-Nappi |
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Institution: | 1. CERN, Geneva, Switzerland;2. Istituto di Fisica dell''Università, Naples, Italy;3. INFN, Sezione di Napoli, Naples, Italy;4. INFN, Sezione di Pisa, Pisa, Italy;5. Istituto di Fisica dell''Università, Pisa, Italy;6. State University of New York, Stony Brook, NY, USA;7. Scuola Normale Superiore, Pisa, Italy |
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Abstract: | We measured the differential cross section for p?p and pp elastic scattering in the momentum-transfer range 0.01 <|t| < 1.0 GeV2 at the CERN Intersecting Storage Rings with center-of-mass energy . Fitting the differential cross section with an exponential Aexp (bt)], we found for |t| < 0.05 GeV2, whilst for |t| > 0.09 GeV2, . Using the optical theorem, we obtained for the total cross section and, by integrating the differential cross section, we obtained for the total elastic cross section . Calculations of σtot combining elastic-rate and total-rate measurements are also given. All of these measurements were also performed for pp scattering at the same energy, and the results for both reactions are compared. |
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Keywords: | CERN-Napoli-Pisa-Stony Brook Collaboration |
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