Evidence of the Coulomb-force effects in the cross-sections of the deuteron–proton breakup at 130 MeV
St. KistrynInstitute of Physics, Jagiellonian University, PL-30059 Kraków, PolandE. StephanInstitute of Physics, University of Silesia, PL-40007 Katowice, PolandB. KłosInstitute of Physics, University of Silesia, PL-40007 Katowice, PolandA. BiegunInstitute of Physics, University of Silesia, PL-40007 Katowice, PolandK. BodekInstitute of Physics, Jagiellonian University, PL-30059 Kraków, PolandI. CiepałInstitute of Physics, Jagiellonian University, PL-30059 Kraków, PolandA. DeltuvaCentro de Física Nuclear da Universidade de Lisboa, P-1649-003 Lisboa, PortugalA. C. FonsecaCentro de Física Nuclear da Universidade de Lisboa, P-1649-003 Lisboa, PortugalN. Kalantar‐NayestanakiKernfysisch Versneller Instituut, NL-9747 AA Groningen, The NetherlandsM. KišKernfysisch Versneller Instituut, NL-9747 AA Groningen, The NetherlandsA. KozelaInstitute of Nuclear Physics PAN, PL-31342 Kraków, PolandM. Mahjour‐ShafieiKernfysisch Versneller Instituut, NL-9747 AA Groningen, The NetherlandsA. MicherdzińskaIndiana University, IUCF, Bloomington, IN 47405, USAP. U. SauerITP, Universität Hannover, D-30167 Hannover, GermanyR. SworstInstitute of Physics, Jagiellonian University, PL-30059 Kraków, PolandJ. ZejmaInstitute of Physics, Jagiellonian University, PL-30059 Kraków, PolandW. ZipperInstitute of Physics, University of Silesia, PL-40007 Katowice, Poland
2006en
ABI
Аннотация
High precision cross-section data of the deuteron–proton breakup reaction at 130 MeV deuteron energy are compared with the theoretical predictions obtained with a coupled-channel extension of the CD Bonn potential with virtual Δ-isobar excitation, without and with inclusion of the long-range Coulomb force. The Coulomb effect is studied on the basis of the cross-section data set, extended in this work to about 1500 data points by including breakup geometries characterized by small polar angles of the two protons. The experimental data clearly prefer predictions obtained with the Coulomb interaction included. The strongest effects are observed in regions in which the relative energy of the two protons is the smallest.
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