Measurement of K(+) production cross section by 8 GeV protons using high-energy neutrino interactions in the SciBooNE detector
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Conrad-2011-Measurement of K.pdf
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Author(s)
Bugel, Leonard G.
Karagiorgi, Georgia Stelios
Katori, Teppei
McGary, Van Thanh
Tanaka, Hiroya
Conrad, Janet Marie
Date Issued
July 2011
Journal
Physical Review D
Publisher
American Physical Society
Citation
Cheng, G. et al. “Measurement of K^{+} production cross section by 8 GeV protons using high-energy neutrino interactions in the SciBooNE detector.” Physical Review D 84 (2011): n. pag. Web. 4 Nov. 2011. © 2011 American Physical Society
Version
Final published version
Abstract
The SciBooNE Collaboration reports K[superscript +] production cross section and rate measurements using high-energy daughter muon neutrino scattering data off the SciBar polystyrene (C[subscript 8]H[subscript 8]) target in the SciBooNE detector. The K[superscript +] mesons are produced by 8 GeV protons striking a beryllium target in Fermilab Booster Neutrino Beam line (BNB). Using observed neutrino and antineutrino events in SciBooNE, we measure d[superscript 2]σ/dpdΩ=(5.34±0.76) mb/(GeV/c×sr) for p+Be→K[superscript +]+X at mean K[superscript +] energy of 3.9 GeV and angle (with respect to the proton beam direction) of 3.7 degrees, corresponding to the selected K[superscript +] sample. Compared to Monte Carlo predictions using previous higher energy K[superscript +] production measurements, this measurement, which uses the NUANCE neutrino interaction generator, is consistent with a normalization factor of 0.85±0.12. This agreement is evidence that the extrapolation of the higher energy K[superscript +] measurements to an 8 GeV beam energy using Feynman scaling is valid. This measurement reduces the error on the K[superscript +] production cross section from 40% to 14%.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.84.012009
