Search for nucleon decay into lepton+K0 final states using Soudan 2

D. Wall; W. W.M. Allison; G. J. Alner; D. S. Ayres; W. L. Barrett; C. Bode; P. M. Border; C. B. Brooks; J. H. Cobb; R. Cotton; H. Courant; D. M. Demuth; T. H. Fields; H. R. Gallagher; C. Garcia-Garcia; M. C. Goodman; R. Gran; T. Joffe-Minor; T. Kafka; S. M.S. Kasahara; W. Leeson; P. J. Litchfield; N. P. Longley; 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; M. H. Schub; R. Seidlein; A. Stassinakis; H. Tom; J. L. Thron; G. Villaume; S. P. Wakely; N. West

doi:10.1103/PhysRevD.61.072004

Search for nucleon decay into lepton+K⁰ final states using Soudan 2

D. Wall, W. W.M. Allison, G. J. Alner, D. S. Ayres, W. L. Barrett, C. Bode, P. M. Border, C. B. Brooks, J. H. Cobb, R. Cotton, H. Courant, D. M. Demuth, T. H. Fields, H. R. Gallagher, C. Garcia-Garcia, M. C. Goodman, R. Gran, T. Joffe-Minor, T. Kafka, S. M.S. KasaharaW. Leeson, P. J. Litchfield, N. P. Longley, 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, M. H. Schub, R. Seidlein, A. Stassinakis, H. Tom, J. L. Thron, G. Villaume, S. P. Wakely, N. West

Physics and Astronomy (Twin Cities)

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Abstract

A search for nucleon decay into two-body final states containing K⁰ mesons has been conducted using the 963 metric ton Soudan 2 iron tracking calorimeter. The topologies, ionizations, and kinematics of contained events recorded in a 5.52 kiloton-year total exposure (4.41 kton-year fiducial volume exposure) are examined for compatibility with nucleon decays in an iron medium. For proton decay into the fully visible final states μ⁺K_S⁰ and e⁺K_S⁰, zero and one event candidates are observed respectively. The lifetime lower limits (τ/B) thus implied are 1.5×10³² yr and 1.2×10³² yr, respectively. Lifetime lower limits are also reported for proton decay into l⁺K₁⁰, and for neutron decay into vK_S⁰.

Original language	English (US)
Article number	072004
Pages (from-to)	1-16
Number of pages	16
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	61
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.61.072004
State	Published - Apr 1 2000

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10.1103/PhysRevD.61.072004

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Wall, D., Allison, W. W. M., Alner, G. J., Ayres, D. S., Barrett, W. L., Bode, C., Border, P. M., Brooks, C. B., Cobb, J. H., Cotton, R., Courant, H., Demuth, D. M., Fields, T. H., Gallagher, H. R., Garcia-Garcia, C., Goodman, M. C., Gran, R., Joffe-Minor, T., Kafka, T., ... West, N. (2000). Search for nucleon decay into lepton+K⁰ final states using Soudan 2. Physical Review D - Particles, Fields, Gravitation and Cosmology, 61(7), 1-16. Article 072004. https://doi.org/10.1103/PhysRevD.61.072004

Wall, D, Allison, WWM, Alner, GJ, Ayres, DS, Barrett, WL, Bode, C, Border, PM, Brooks, CB, Cobb, JH, Cotton, R, Courant, H, Demuth, DM, Fields, TH, Gallagher, HR, Garcia-Garcia, C, Goodman, MC, Gran, R, Joffe-Minor, T, Kafka, T, Kasahara, SMS, Leeson, W, Litchfield, PJ, Longley, NP, 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, Schub, MH, Seidlein, R, Stassinakis, A, Tom, H, Thron, JL, Villaume, G, Wakely, SP & West, N 2000, 'Search for nucleon decay into lepton+K⁰ final states using Soudan 2', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 61, no. 7, 072004, pp. 1-16. https://doi.org/10.1103/PhysRevD.61.072004

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title = "Search for nucleon decay into lepton+K0 final states using Soudan 2",

abstract = "A search for nucleon decay into two-body final states containing K0 mesons has been conducted using the 963 metric ton Soudan 2 iron tracking calorimeter. The topologies, ionizations, and kinematics of contained events recorded in a 5.52 kiloton-year total exposure (4.41 kton-year fiducial volume exposure) are examined for compatibility with nucleon decays in an iron medium. For proton decay into the fully visible final states μ+KS0 and e+KS0, zero and one event candidates are observed respectively. The lifetime lower limits (τ/B) thus implied are 1.5×1032 yr and 1.2×1032 yr, respectively. Lifetime lower limits are also reported for proton decay into l+K10, and for neutron decay into vKS0.",

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 Brooks, {C. B.} and Cobb, {J. H.} and R. Cotton and H. Courant and Demuth, {D. M.} and Fields, {T. H.} and Gallagher, {H. R.} and C. Garcia-Garcia 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 Longley, {N. P.} 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 Schub, {M. H.} and R. Seidlein and A. Stassinakis and H. Tom and Thron, {J. L.} and G. Villaume and Wakely, {S. P.} and N. West",

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doi = "10.1103/PhysRevD.61.072004",

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T1 - Search for nucleon decay into lepton+K0 final states using Soudan 2

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 - Brooks, C. B.

AU - Cobb, J. H.

AU - Cotton, R.

AU - Courant, H.

AU - Demuth, D. M.

AU - Fields, T. H.

AU - Gallagher, H. R.

AU - Garcia-Garcia, C.

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 - Longley, N. P.

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 - Schub, M. H.

AU - Seidlein, R.

AU - Stassinakis, A.

AU - Tom, H.

AU - Thron, J. L.

AU - Villaume, G.

AU - Wakely, S. P.

AU - West, N.

PY - 2000/4/1

Y1 - 2000/4/1

N2 - A search for nucleon decay into two-body final states containing K0 mesons has been conducted using the 963 metric ton Soudan 2 iron tracking calorimeter. The topologies, ionizations, and kinematics of contained events recorded in a 5.52 kiloton-year total exposure (4.41 kton-year fiducial volume exposure) are examined for compatibility with nucleon decays in an iron medium. For proton decay into the fully visible final states μ+KS0 and e+KS0, zero and one event candidates are observed respectively. The lifetime lower limits (τ/B) thus implied are 1.5×1032 yr and 1.2×1032 yr, respectively. Lifetime lower limits are also reported for proton decay into l+K10, and for neutron decay into vKS0.

AB - A search for nucleon decay into two-body final states containing K0 mesons has been conducted using the 963 metric ton Soudan 2 iron tracking calorimeter. The topologies, ionizations, and kinematics of contained events recorded in a 5.52 kiloton-year total exposure (4.41 kton-year fiducial volume exposure) are examined for compatibility with nucleon decays in an iron medium. For proton decay into the fully visible final states μ+KS0 and e+KS0, zero and one event candidates are observed respectively. The lifetime lower limits (τ/B) thus implied are 1.5×1032 yr and 1.2×1032 yr, respectively. Lifetime lower limits are also reported for proton decay into l+K10, and for neutron decay into vKS0.

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U2 - 10.1103/PhysRevD.61.072004

DO - 10.1103/PhysRevD.61.072004

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EP - 16

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 7

M1 - 072004

ER -

Search for nucleon decay into lepton+K⁰ final states using Soudan 2

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