학술논문
Neutrino-induced coherent $\pi^{+}$ production in C, CH, Fe and Pb at $\langle E_{\nu}\rangle \sim 6$ GeV
Document Type
Working Paper
Author
Ramírez, M. A.; Akhter, S.; Dar, Z. Ahmad; Akbar, F.; Ansari, V.; Ascencio, M. V.; Athar, M. Sajjad; Bashyal, A.; Bellantoni, L.; Bercellie, A.; Betancourt, M.; Bodek, A.; Bonilla, J. L.; Bravar, A.; Budd, H.; Caceres, G.; Cai, T.; Díaz, G. A.; da Motta, H.; Dytman, S. A.; Felix, J.; Fields, L.; Filkins, A.; Fine, R.; Gallagher, H.; Ghosh, A.; Gilligan, S. M.; Gran, R.; Granados, E.; Harris, D. A.; Henry, S.; Jena, D.; Jena, S.; Kleykamp, J.; Klustová, A.; Kordosky, M.; Last, D.; Lozano, A.; Lu, X. -G.; Maher, E.; Manly, S.; Mann, W. A.; Mauger, C.; McFarland, K. S.; Messerly, B.; Miller, J.; Moreno, O.; Morfín, J. G.; Naples, D.; Nelson, J. K.; Nguyen, C.; Olivier, A.; Paolone, V.; Perdue, G. N.; Plows, K. -J.; Ransome, R. D.; Ruterbories, D.; Schellman, H.; Su, H.; Sultana, M.; Syrotenko, V. S.; Valencia, E.; Vaughan, N. H.; Waldron, A. V.; Yaeggy, B.; Zazueta, L.
Source
Subject
Language
Abstract
MINERvA has measured the $\nu_{\mu}$-induced coherent $\pi^{+}$ cross section simultaneously in hydrocarbon (CH), graphite (C), iron (Fe) and lead (Pb) targets using neutrinos from 2 to 20 GeV. The measurements exceed the predictions of the Rein-Sehgal and Berger-Sehgal PCAC based models at multi-GeV $\nu_{\mu}$ energies and at produced $\pi^{+}$ energies and angles, $E_{\pi}>1$ GeV and $\theta_{\pi}<10^{\circ}$. Measurements of the cross-section ratios of Fe and Pb relative to CH reveal the effective $A$-scaling to increase from an approximate $A^{1/3}$ scaling at few GeV to an $A^{2/3}$ scaling for $E_{\nu}>10$ GeV.
Comment: 8 pages, 6 figures and 60 pages of supplemental material. Updated to accepted version, with ancillary files of the cross section data
Comment: 8 pages, 6 figures and 60 pages of supplemental material. Updated to accepted version, with ancillary files of the cross section data