| Autor: |
N. Graf, R. Gran, P. J. Litchfield, M. Bishai, M. Orchanian, K. Grzelak, L. Mualem, S. De Rijck, D. Torretta, M. Kordosky, D. Cronin-Hennessy, R. K. Plunkett, L. Corwin, Carlos Escobar, S. Phan-Budd, Andrew Blake, R. J. Nichol, A. Sousa, M. A. Thomson, J. K. De Jong, A. Perch, J. Hartnell, A. Timmons, H. R. Gallagher, P. Sail, P. Gouffon, S. Moed Sher, N. E. Devenish, A. Holin, R. Zwaska, R. C. Webb, B. Viren, C. Rosenfeld, G. M. Irwin, P. Schreiner, R. Chen, R. Toner, Gregory J Pawloski, M. V. Frohne, P. Adamson, C. M. Castromonte, B. Rebel, M. D. Messier, G. J. Feldman, L. Whitehead, S. Childress, R. L. Talaga, G. Tzanakos, C. James, S. V. Cao, S. M. S. Kasahara, Subhasmita Mishra, C. L. McGivern, G. Koizumi, C. D. Moore, D. A. Jensen, Joao A B Coelho, X. Tian, X. Qiu, A. Schreckenberger, J. Schneps, N. Mayer, D. Cherdack, J. C. Thomas, J. J. Evans, M. M. Pfützner, S. Germani, T. Kafka, A. E. Kreymer, J. K. Nelson, E. Falk, J. Todd, Warner A. Miller, Mcd Sanchez, H. A. Rubin, Z. Isvan, Marvin L Marshak, Christopher G. White, D. Naples, J. M. Paley, A. V. Devan, J. Urheim, R. Sharma, R. B. Pahlka, L. H. Whitehead, D. D. Phan, W. P. Oliver, P. Vahle, M. Y. Gabrielyan, R. A. Gomes, N. Tagg, Alec Habig, Karol Lang, W. A. Mann, W. Flanagan, G.D. Barr, Junwei Huang, M. M. Medeiros, J. A. Musser, R. Hatcher, N. Poonthottathil, P. Lucas, T. J. Carroll, S. C. Tognini, G. J. Bock, Harvey B Newman, R. Mehdiyev, S. R. Hahn, R. B. Patterson, J. R. Meier, A. Radovic, D. Bogert, A. Aurisano, Stanley G. Wojcicki, J. O'Connor, J. Hylen, M. C. Goodman, M. V. Diwan, J. A. Nowak, I. Anghel, A. C. Weber |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Physical Review D. 94 |
| ISSN: |
2470-0029
2470-0010 |
| DOI: |
10.1103/physrevd.94.072006 |
| Popis: |
Forward single π^0 production by coherent neutral-current interactions, νA→νAπ^0, is investigated using a 2.8×10^(20) protons-on-target exposure of the MINOS Near Detector. For single-shower topologies, the event distribution in production angle exhibits a clear excess above the estimated background at very forward angles for visible energy in the range 1–8 GeV. Cross sections are obtained for the detector medium comprised of 80% iron and 20% carbon nuclei with ⟨A⟩=48, the highest-⟨A⟩ target used to date in the study of this coherent reaction. The total cross section for coherent neutral-current single π^0 production initiated by the ν_μ flux of the NuMI low-energy beam with mean (mode) E_ν of 4.9 GeV (3.0 GeV), is 77.6±5.0(stat)^(+15.0)_(−16.8)(syst)×10^(−40) cm^2 pernucleus. The results are in good agreement with predictions of the Berger-Sehgal model. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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