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Title: Measurement of single π 0 production by coherent neutral-current ν Fe interactions in the MINOS Near Detector

Forward single π0 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 $$\langle$$A$$\rangle$$=48, the highest-$$\langle$$A$$\rangle$$ target used to date in the study of this coherent reaction. In conclusion, 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)$$+15.0\atop{-16.8}$$(syst)×10 -40 cm 2 pernucleus. Finally, the results are in good agreement with predictions of the Berger-Sehgal model.
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Publication Date:
Report Number(s):
FERMILAB-PUB-16-145-ND; arXiv:1608.05702; BNL-113841-2017-JA
Journal ID: ISSN 2470-0010; 1482650
Grant/Contract Number:
AC02-07CH11359; SC00112704
Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 94; Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Lab. (BNL), Upton, NY (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
MINOS Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1331119
Alternate Identifier(s):
OSTI ID: 1330126; OSTI ID: 1358021