Search for nucleon decay with final states l+η0, ν̄η0, and ν̄π+,0 using Soudan 2

D. Wall; W. W.M. Allison; G. J. Alner; D. S. Ayres; W. L. Barrett; C. Bode; P. M. Border; J. H. Cobb; R. Cotton; H. Courant; J. Chung; D. M. Demuth; T. H. Fields; H. R. Gallagher; M. C. Goodman; R. Gran; T. Joffe-Minor; T. Kafka; S. M.S. Kasahara; W. Leeson; P. J. Litchfield; W. A. Mann; M. L. Marshak; R. H. Milburn; W. H. Miller; L. Mualem; A. Napier; W. P. Oliver; G. F. Pearce; E. A. Peterson; D. A. Petyt; L. E. Price; K. Ruddick; M. Sanchez; J. Schneps; A. Stassinakis; J. L. Thron; S. P. Wakely; N. West

doi:10.1103/PhysRevD.62.092003

Search for nucleon decay with final states l⁺η⁰, ν̄η⁰, and ν̄π^+,0 using Soudan 2

D. Wall, W. W.M. Allison, G. J. Alner, D. S. Ayres, W. L. Barrett, C. Bode, P. M. Border, J. H. Cobb, R. Cotton, H. Courant, J. Chung, D. M. Demuth, T. H. Fields, H. R. Gallagher, M. C. Goodman, R. Gran, T. Joffe-Minor, T. Kafka, S. M.S. Kasahara, W. LeesonP. J. Litchfield, W. A. Mann, M. L. Marshak, R. H. Milburn, W. H. Miller, L. Mualem, A. Napier, W. P. Oliver, G. F. Pearce, E. A. Peterson, D. A. Petyt, L. E. Price, K. Ruddick, M. Sanchez, J. Schneps, A. Stassinakis, J. L. Thron, S. P. Wakely, N. West

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Abstract

We have searched for nucleon decay into five two-body final states using a 4.4 kiloton-year fiducial exposure of the Soudan 2 iron tracking calorimeter. For proton decay into the fully visible final states μ⁺η⁰ and e⁺η⁰, we observe zero and one event, respectively, that satisfy our search criteria for nucleon decay. The lifetime lower limits (τ/B) thus implied are 89×10³⁰ years and 81×10³⁰ years at 90% confidence level. For neutron decay into ν̄η⁰, we obtain the lifetime lower limit 71×10³⁰ years. Limits are also reported for neutron decay into ν̄π⁰, and for proton decay into ν̄π⁺.

Original language	English (US)
Article number	092003
Pages (from-to)	1-11
Number of pages	11
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	62
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.62.092003
State	Published - Nov 1 2000

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Wall, D., Allison, W. W. M., Alner, G. J., Ayres, D. S., Barrett, W. L., Bode, C., Border, P. M., Cobb, J. H., Cotton, R., Courant, H., Chung, J., Demuth, D. M., Fields, T. H., Gallagher, H. R., Goodman, M. C., Gran, R., Joffe-Minor, T., Kafka, T., Kasahara, S. M. S., ... West, N. (2000). Search for nucleon decay with final states l⁺η⁰, ν̄η⁰, and ν̄π^+,0 using Soudan 2. Physical Review D - Particles, Fields, Gravitation and Cosmology, 62(9), 1-11. [092003]. https://doi.org/10.1103/PhysRevD.62.092003

Search for nucleon decay with final states l⁺η⁰, ν̄η⁰, and ν̄π^+,0 using Soudan 2. / Wall, D.; Allison, W. W.M.; Alner, G. J.; Ayres, D. S.; Barrett, W. L.; Bode, C.; Border, P. M.; Cobb, J. H.; Cotton, R.; Courant, H.; Chung, J.; Demuth, D. M.; Fields, T. H.; Gallagher, H. R.; Goodman, M. C.; Gran, R.; Joffe-Minor, T.; Kafka, T.; Kasahara, S. M.S.; Leeson, W.; Litchfield, P. J.; Mann, W. A.; Marshak, M. L.; Milburn, R. H.; Miller, W. H.; Mualem, L.; Napier, A.; Oliver, W. P.; Pearce, G. F.; Peterson, E. A.; Petyt, D. A.; Price, L. E.; Ruddick, K.; Sanchez, M.; Schneps, J.; Stassinakis, A.; Thron, J. L.; Wakely, S. P.; West, N.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 62, No. 9, 092003, 01.11.2000, p. 1-11.

Research output: Contribution to journal › Article › peer-review

Wall, D, Allison, WWM, Alner, GJ, Ayres, DS, Barrett, WL, Bode, C, Border, PM, Cobb, JH, Cotton, R, Courant, H, Chung, J, Demuth, DM, Fields, TH, Gallagher, HR, Goodman, MC, Gran, R, Joffe-Minor, T, Kafka, T, Kasahara, SMS, Leeson, W, Litchfield, PJ, Mann, WA, Marshak, ML, Milburn, RH, Miller, WH, Mualem, L, Napier, A, Oliver, WP, Pearce, GF, Peterson, EA, Petyt, DA, Price, LE, Ruddick, K, Sanchez, M, Schneps, J, Stassinakis, A, Thron, JL, Wakely, SP & West, N 2000, 'Search for nucleon decay with final states l⁺η⁰, ν̄η⁰, and ν̄π^+,0 using Soudan 2', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 62, no. 9, 092003, pp. 1-11. https://doi.org/10.1103/PhysRevD.62.092003

Wall, D. ; Allison, W. W.M. ; Alner, G. J. ; Ayres, D. S. ; Barrett, W. L. ; Bode, C. ; Border, P. M. ; Cobb, J. H. ; Cotton, R. ; Courant, H. ; Chung, J. ; Demuth, D. M. ; Fields, T. H. ; Gallagher, H. R. ; Goodman, M. C. ; Gran, R. ; Joffe-Minor, T. ; Kafka, T. ; Kasahara, S. M.S. ; Leeson, W. ; Litchfield, P. J. ; Mann, W. A. ; Marshak, M. L. ; Milburn, R. H. ; Miller, W. H. ; Mualem, L. ; Napier, A. ; Oliver, W. P. ; Pearce, G. F. ; Peterson, E. A. ; Petyt, D. A. ; Price, L. E. ; Ruddick, K. ; Sanchez, M. ; Schneps, J. ; Stassinakis, A. ; Thron, J. L. ; Wakely, S. P. ; West, N. / Search for nucleon decay with final states l⁺η⁰, ν̄η⁰, and ν̄π^+,0 using Soudan 2. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2000 ; Vol. 62, No. 9. pp. 1-11.

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title = "Search for nucleon decay with final states l+η0, {\=ν}η0, and {\=ν}π+,0 using Soudan 2",

abstract = "We have searched for nucleon decay into five two-body final states using a 4.4 kiloton-year fiducial exposure of the Soudan 2 iron tracking calorimeter. For proton decay into the fully visible final states μ+η0 and e+η0, we observe zero and one event, respectively, that satisfy our search criteria for nucleon decay. The lifetime lower limits (τ/B) thus implied are 89×1030 years and 81×1030 years at 90% confidence level. For neutron decay into {\=ν}η0, we obtain the lifetime lower limit 71×1030 years. Limits are also reported for neutron decay into {\=ν}π0, and for proton decay into {\=ν}π+.",

author = "D. Wall and Allison, {W. W.M.} and Alner, {G. J.} and Ayres, {D. S.} and Barrett, {W. L.} and C. Bode and Border, {P. M.} and Cobb, {J. H.} and R. Cotton and H. Courant and J. Chung and Demuth, {D. M.} and Fields, {T. H.} and Gallagher, {H. R.} and Goodman, {M. C.} and R. Gran and T. Joffe-Minor and T. Kafka and Kasahara, {S. M.S.} and W. Leeson and Litchfield, {P. J.} and Mann, {W. A.} and Marshak, {M. L.} and Milburn, {R. H.} and Miller, {W. H.} and L. Mualem and A. Napier and Oliver, {W. P.} and Pearce, {G. F.} and Peterson, {E. A.} and Petyt, {D. A.} and Price, {L. E.} and K. Ruddick and M. Sanchez and J. Schneps and A. Stassinakis and Thron, {J. L.} and Wakely, {S. P.} and N. West",

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AU - Wall, D.

AU - Allison, W. W.M.

AU - Alner, G. J.

AU - Ayres, D. S.

AU - Barrett, W. L.

AU - Bode, C.

AU - Border, P. M.

AU - Cobb, J. H.

AU - Cotton, R.

AU - Courant, H.

AU - Chung, J.

AU - Demuth, D. M.

AU - Fields, T. H.

AU - Gallagher, H. R.

AU - Goodman, M. C.

AU - Gran, R.

AU - Joffe-Minor, T.

AU - Kafka, T.

AU - Kasahara, S. M.S.

AU - Leeson, W.

AU - Litchfield, P. J.

AU - Mann, W. A.

AU - Marshak, M. L.

AU - Milburn, R. H.

AU - Miller, W. H.

AU - Mualem, L.

AU - Napier, A.

AU - Oliver, W. P.

AU - Pearce, G. F.

AU - Peterson, E. A.

AU - Petyt, D. A.

AU - Price, L. E.

AU - Ruddick, K.

AU - Sanchez, M.

AU - Schneps, J.

AU - Stassinakis, A.

AU - Thron, J. L.

AU - Wakely, S. P.

AU - West, N.

PY - 2000/11/1

Y1 - 2000/11/1

N2 - We have searched for nucleon decay into five two-body final states using a 4.4 kiloton-year fiducial exposure of the Soudan 2 iron tracking calorimeter. For proton decay into the fully visible final states μ+η0 and e+η0, we observe zero and one event, respectively, that satisfy our search criteria for nucleon decay. The lifetime lower limits (τ/B) thus implied are 89×1030 years and 81×1030 years at 90% confidence level. For neutron decay into ν̄η0, we obtain the lifetime lower limit 71×1030 years. Limits are also reported for neutron decay into ν̄π0, and for proton decay into ν̄π+.

AB - We have searched for nucleon decay into five two-body final states using a 4.4 kiloton-year fiducial exposure of the Soudan 2 iron tracking calorimeter. For proton decay into the fully visible final states μ+η0 and e+η0, we observe zero and one event, respectively, that satisfy our search criteria for nucleon decay. The lifetime lower limits (τ/B) thus implied are 89×1030 years and 81×1030 years at 90% confidence level. For neutron decay into ν̄η0, we obtain the lifetime lower limit 71×1030 years. Limits are also reported for neutron decay into ν̄π0, and for proton decay into ν̄π+.

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Search for nucleon decay with final states l⁺η⁰, ν̄η⁰, and ν̄π^+,0 using Soudan 2

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