P
P. J. Litchfield
Researcher at Rutherford Appleton Laboratory
Publications - 15
Citations - 619
P. J. Litchfield is an academic researcher from Rutherford Appleton Laboratory. The author has contributed to research in topics: Muon & Cosmic ray. The author has an hindex of 8, co-authored 15 publications receiving 612 citations.
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Journal ArticleDOI
The atmospheric neutrino flavor ratio from a 3.9 fiducial kiloton-year exposure of Soudan 2.
W.W.M. Allison,G. J. Alner,D. S. Ayres,G.D. Barr,William L. Barrett,C. Bode,P. M. Border,C.B. Brooks,J. H. Cobb,R.J. Cotton,H. Courant,D. M. DeMuth,T. H. Fields,H.R. Gallagher,C. Garcia-Garcia,Maury Goodman,R. Gran,T. Joffe–Minor,T. Kafka,S. M S Kasahara,W. Leeson,P. J. Litchfield,N. P. Longley,W. A. Mann,Marvin L Marshak,R. H. Milburn,Warner A. Miller,L. Mualem,A. Napier,W. P. Oliver,G. F. Pearce,E. A. Peterson,David Petyt,L. E. Price,K. Ruddick,M. C. Sanchez,J. Schneps,M.H. Schub,R. Seidlein,A. Stassinakis,J. L. Thron,V. Vassiliev,G. Villaume,S. P. Wakely,D. Wall,N. West,U.M. Wielgosz +46 more
TL;DR: In this article, the authors reported a measurement of the atmospheric neutrino flavor ratio, R, using a sample of quasi-elastic neutrinos interactions occurring in an iron medium.
Journal ArticleDOI
Measurement of the atmospheric neutrino flavour composition in Soudan 2
W.W.M. Allison,G. J. Alner,D. S. Ayres,William L. Barrett,C. Bode,P. M. Border,C.B. Brooks,J.H. Cobb,David Ja Cockerill,R.J. Cotton,H. Courant,D. M. DeMuth,T. H. Fields,H. R. Gallagher,H. R. Gallagher,H. R. Gallagher,C. Garcia-Garcia,Maury Goodman,R. N. Gray,K. Johns,T. Kafka,S. M S Kasahara,W. Leeson,P. J. Litchfield,N.P. Longley,M. Lowe,W. A. Mann,Marvin L Marshak,E. N. May,R. H. Milburn,W. H. Miller,L. Mualem,A. Napier,W. P. Oliver,G. F. Pearce,Donald H. Perkins,E. A. Peterson,David Petyt,L. E. Price,D. Roback,K. Ruddick,D. Schmid,J. Schneps,M.H. Schub,R. Seidlein,M. Shupe,A. Stassinakis,N. Sundaralingam,Juergen Thomas,J. L. Thron,V. Vassiliev,G. Villaume,S. P. Wakely,D. Wall,S. J. Werkema,N. West,U.M. Wielgosz +56 more
TL;DR: The atmospheric neutrino flavour ratio measured using a 1.52 kton-year exposure of Soudan 2 is found to be 0.72 ± 0.19−0.05 relative to the expected value from a Monte Carlo calculation as mentioned in this paper.
Journal ArticleDOI
Study of cosmic ray composition in the knee region using multiple muon events in the Soudan 2 detector
S. M S Kasahara,W.W.M. Allison,G. J. Alner,D. S. Ayres,W. L. Barrett,C. Bode,P. M. Border,C.B. Brooks,J. H. Cobb,David Ja Cockerill,R.J. Cotton,H. Courant,D. M. DeMuth,B. Ewen,T. H. Fields,H.R. Gallagher,Maury Goodman,R. Gran,R. N. Gray,K. Johns,T. Kafka,W. Leeson,P. J. Litchfield,N. P. Longley,M. Lowe,W. A. Mann,Marvin L Marshak,Edward May,R. H. Milburn,Warner A. Miller,L. Mualem,A. Napier,W. P. Oliver,G. F. Pearce,E. A. Peterson,L. E. Price,D. Roback,K. Ruddick,D. Schmid,J. Schneps,M.H. Schub,R. Seidlein,M. Shupe,N. Sundaralingam,J. L. Thron,H.J. Trost,Jack L. Uretsky,V. Vassiliev,G. Villaume,S. P. Wakely,D. Wall,S. J. Werkema,N. West +52 more
TL;DR: In this article, deep underground muon events recorded by the Soudan 2 detector, located at a depth of 2100 m of water equivalent, have been used to infer the nuclear composition of cosmic rays in the ''knee'' region of the cosmic ray energy spectrum.
Journal ArticleDOI
Search for magnetic monopoles with the Soudan 2 detector.
J. L. Thron,W.W.M. Allison,G. J. Alner,I. Ambats,D. S. Ayres,L. Balka,G.D. Barr,G.D. Barr,W. L. Barrett,W. L. Barrett,D. Benjamin,P. M. Border,C.B. Brooks,J. H. Cobb,David Ja Cockerill,H. Courant,J. W. Dawson,D. M. DeMuth,V. W. Edwards,B. Ewen,T. H. Fields,C. Garcia-Garcia,C. Garcia-Garcia,R. H. Giles,Graham L. Giller,Maury Goodman,R. N. Gray,S. J. Heilig,S. J. Heilig,N. Hill,J. Hoftiezer,J. Hoftiezer,D. J. Jankowski,Kenneth Johns,Kenneth Johns,T. Kafka,S. M S Kasahara,J. Kochocki,J. Kochocki,W. Leeson,P. J. Litchfield,N. P. Longley,N. P. Longley,F. V. Lopez,M. Lowe,M. Lowe,W. A. Mann,Marvin L Marshak,Edward May,D. Maxam,L. McMaster,R. H. Milburn,Warner A. Miller,Christian P. Minor,A. Napier,W. P. Oliver,G. F. Pearce,Donald H. Perkins,E. A. Peterson,L. E. Price,D. Roback,D. B. Rosen,D. B. Rosen,K. Ruddick,B. Saitta,B. Saitta,D. Schmid,J. Schlereth,J. Schneps,P. D. Shield,Michael Shupe,Michael Shupe,N. Sundaralingam,M. A. Thomson,M. A. Thomson,L. M. Tupper,G. Villaume,S. J. Werkema,S. J. Werkema,N. West,C. A. Woods,C. A. Woods +81 more
TL;DR: A search for grand unified theory magnetic monopoles making highly ionizing tracks in argon gas has been conducted using the Soudan 2 nucleon decay detector, a large fine-grained tracking calorimeter comprised of long drift tubes read out by proportional wires.
Journal ArticleDOI
The SOUDAN 2 detector: The design and construction of the tracking calorimeter modules
W.W.M. Allison,G. J. Alner,I. Ambats,D. S. Ayres,L. Balka,G.D. Barr,W. L. Barrett,D. Benjamin,C. Bode,P. M. Border,C.B. Brooks,J. H. Cobb,David Ja Cockerill,K. Coover,R.J. Cotton,H. Courant,B. Dahlin,U. DasGupta,J. W. Dawson,D. M. DeMuth,V. W. Edwards,B. Ewen,T. H. Fields,C. Garcia-Garcia,H.M. Gallagher,H.M. Gallagher,R. H. Giles,Graham L. Giller,Maury Goodman,R. N. Gray,S. Heppelmann,N. Hill,J. H. Hoftiezer,D. J. Jankowski,K. Johns,T. Joyce,T. Kafka,S. M S Kasahara,L.M. Kirby-Gallagher,J. Kochocki,W. Leeson,P. J. Litchfield,N. P. Longley,F. V. Lopez,M. Lowe,W. A. Mann,Marvin L Marshak,Edward May,D. Maxam,L. McMaster,R. H. Milburn,Warner A. Miller,Christian P. Minor,N. Mondal,L. Mualem,A. Napier,E.M. Nelson,R. Nickson,W. P. Oliver,G. F. Pearce,Donald H. Perkins,E. A. Peterson,L. E. Price,D. Roback,D. Roback,D. Rosen,K. Ruddick,B. Saitta,D. Schmid,J. Schlereth,J. Schneps,M.H. Schub,R. Seidlein,P.D. Shield,M. Shupe,S. Spear,A. Stassinakis,N. Sundaralingam,M. A. Thomson,J. L. Thron,V. Vassiliev,G. Villaume,S. P. Wakely,D. Wall,E.W.G. Wallis,L. Weems,S. J. Werkema,N. West,U.M. Wielgosz,C. A. Woods,S. Yarker +90 more
TL;DR: SOUDAN 2 as discussed by the authors is a 960-ton tracking calorimeter which has been constructed to search for nucleon decay and other phenomena and consists of 224 metal drift tubes of 15 mm internal diameter.