The search for neutrino oscillations in the appearance mode νν→νe for neutrino energies near the muon threshold

T. Dombeck, T. J. Bowles, A. Brown, R. E. Brown, R. L. Burman, D. Clark, S. Clearwater, H. Kruse, D. Lee, B. Aas, G. Igo, C. Newsom, D. Beavis, S. Y. Fung, W. Gorn, R. T. Poe, G. J. Vandalen, B. Bassalleck, B. Dieterle, R. E. HillJ. H. Kang, C. Leavitt, L. Auerbach, S. Datta, Y. Huang, R. Fisk, D. Koetke, R. Manweiler

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

A search for neutrino oscillations in the appearance mode νν→νe was performed using the in-flight pion-decay neutrino source at the LAMPF accelerator. An all-active scintillator detector was exposed to a muon-neutrino beam produced by five Coulombs of 800 MeV protons on target. Oscillations events would have appeared as high-energy electrons from the reaction νe+C→e-+X. We also measured charged-current muons events in the detector to normalize our results. Our data show no evidence for neutrino oscillations and we place 90% CL upper limits on sin2(2φ) < 0.008 at Δm2 = 11 eV2, and Δm2 < 0.67 eV2 for complete mixing.

Original languageEnglish
Pages (from-to)591-596
Number of pages6
JournalPhysics Letters B
Volume194
Issue number4
DOIs
Publication statusPublished - 1987 Aug 20

Bibliographical note

Funding Information:
We wish to acknowledgteh e supporto f L. Rosen, J. Browne and G.J. Stephensotnh roughoutth e con-structiona ndr unningo f the experimenWt. e wish to thank the LAMPF and WNR crews who helped us run the beam and to the numerouss ummers tudents who contributedsi gnificantlyto bringing the experiment on-line. This work was supportedb y the US Departmento f Energy, and one of us (G.V.D.) acknowledgessu pportr eceivedt hroughthe University of California.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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