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Backward emitted protons in interactions of neutrinos with nuclei in photoemulsion |
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| Authors: | M Dayon V Rappoport V Smirnitsky R Ammar V Ammosov A Bakich V Baranov Yu Batusov S Bunyatov T Burnett D Coppage R Davis O Egorov V Gapienko P Goritchev J Gress M Ivanova A Jurak V Klukhin E Kolganova V Koreshev S Krzywdzinski O Kuznetsov N Kwak J Lord V Lyukov A Olszewski L Peak P Pitukhin E Pozharova R Riemer R Rosenbladt H Rubin V Shamanov V Sirotenko W Smart R Stump H Tchernev L Voyvodic B Wilczynska H Wilczynski R Wilkes W Wolter B Wosiek |
| Institution: | 1. P.N. Lebedev Physical Institute, Russia Academy of Sciences, Leninsky Prospect 53, 117924, Moscow, Russian Federation 2. Institute of Theoretical and Experimental Physics, Moscow, Russian Federation 3. University of Kansas, Lawrence, KS, USA 4. Institute for High Energy Physics, Serpukhov, Russian Federation 5. University of Sydney, N.S.W., Australia 6. Joint Institute for Nuclear Research, Dubna, Russian Federation 7. University of Washington, Seattle, WA, USA 8. Plovdiv University, Plovdiv, Bulgaria 9. Institute of Nuclear Physics, Krakow, Poland 10. Illinois Institute of Technology, Chicago, IL, USA 11. Fermi National Accelerator Laboratory, Batavia, IL, USA 12. Institute of Nuclear Research and Nuclear Energy, Sofia, Bulgaria |
| Abstract: | Backward emitted protons with momentump>0.3 GeV/c in interactions of neutrino in the energy range 10–200 GeV with photoemulsion nuclei were investigated. Energy spectrum slope parameter of backward protons was measured to beT 0=48.9±7.9 MeV. TheA-dependence power index of relative mean yield of backward protons was found to bea=0.68±0.12. A drop in the mean yield of backward protons at the four momentum squared over ～15 (GeV/c)2 (the neutrino energy over ～50 GeV) was observed. |
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