J. Mei
Indiana University
3 Papers
10 Citations
J. Mei is an academic researcher from Indiana University. The author has contributed to research in topics: Neutron & Neutron capture. The author has an hindex of 2, co-authored 3 publications.
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Papers
Status of the NPDGamma experiment
J. Fry,Ricardo Alarcon,R. Allen,E. Askanazi,S. Balascuta,L. Barrón-Palos,S. Baeßler,Alexander Barzilov,C. Blessinger,D. Blyth,J. D. Bowman,J. R. Calarco,Timothy Chupp,C. E. Coppola,Christopher Crawford,K. Craycraft,M. Dabaghyan,D. Evans,J. Favela,Charles Fieseler,Nadia Fomin,W. Fox,Stuart J. Freedman,E. Frlež,C. Fu,C. Garcia,I. Garishvili,Michael Gericke,R. C. Gillis,Kyle B. Grammer,Geoffrey Greene,J. Hamblen,C. Hayes,F. W. Hersman,Takashi Ino,Erik B. Iverson,Gordon L. Jones,L. Kabir,S. Kucucker,Bernhard Lauss,Y. Li,R. Mahurin,M. Maldonado-Velázquez,M. McCrea,Yasuhiro Masuda,J. Mei,Robert Milburn,Gregory S. Mitchell,P. E. Mueller,Suguru Muto,M. Musgrave,H. Nann,Ivan Novikov,S. A. Page,D. Parsons,Dinko Pocanic,S. I. Penttilä,W. D. Ramsay,A. Salas-Bacci,S. Santra,P. N. Seo,E. I. Sharapov,M. Sharma,F. Simmons,T. B. Smith,W. M. Snow,J. Stuart,E. Tang,Z. Tang,J. Thomison,T. Tong,J. Vanderwerp,S. Waldecker,W. S. Wilburn,W. Xu,V.W. Yuan,Yi-De Zhang +76 more
TL;DR: The NPDGamma experiment measured the parity-violating (PV) gamma asymmetry from polarized cold neutrons captured on protons at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) as mentioned in this paper.
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•Journal Article
Measurement of parity-violating neutron capture gamma asymmetries at low-energies
L. Barrón-Palos,Ricardo Alarcon,L.P. Alonzi,S. Baeßler,S. Balascuta,M. Bychkov,J. R. Calarco,R. D. Carlini,E. Chávez,W.C. Chen,Timothy Chupp,Christopher Crawford,Q. Curiel-García,M. Dabaghyan,Jonny Dadras,Areg Danagoulian,M.C. Estes,Nadia Fomin,Stuart J. Freedman,E. Frlez,T. R. Gentile,Michael Gericke,R. C. Gillis,Geoffrey Greene,F. W. Hersman,B. Hona,A. Huerta,Takashi Ino,Gordon L. Jones,A. Komives,B. Lauss,W. Lee,M. B. Leuschner,W. Losowski,R. Mahurin,D. Marin-Lámbarri,Elise Martin,Yasuhiro Masuda,J. Mei,Gregory S. Mitchell,P. E. Mueller,M. Musgrave,Suguru Muto,H. Nann,M.E. Ortiz,A. Palladino,S. A. Page,S. I. Penttilä,Dinko Pocanic,J. Prince,D. Ramsay,P. Rodríguez-Zamora,A. Salas-Bacci,S. Santra,P. N. Seo,E. I. Sharapov,M. Sharma,T. B. Smith,W. M. Snow,Z. Tang,S. Vorndran,W. S. Wilburn,M. Whitehead,V.W. Yuan,J. D. Bowman +64 more
Abstract: A sensitive measurement of parity-violating (PV) observables in few-nucleon systems can shed light on our current understanding of the hadronic weak interaction at low momentum transfers. Theoretical models describe the nucleon-nucleon weak interaction at low energies with 6 parameters that need, in principle, to be determined in the same number of independent experiments. In this context, a series of experiments with cold neutrons are being proposed and developed. Particularly, experiments that aim to measure the parity-violating asymmetry in the distribution of the gamma-rays emitted in the capture of polarized neutrons by protons and deuterium, will be discussed in this paper.
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First Observation of P-odd γ Asymmetry in Polarized Neutron Capture on Hydrogen.
D. Blyth,J. Fry,Nadia Fomin,Ricardo Alarcon,L. Alonzi,E. Askanazi,S. Baeßler,S. Balascuta,L. Barrón-Palos,Alexander Barzilov,J. D. Bowman,N. Birge,J. R. Calarco,Timothy Chupp,V. Cianciolo,C. E. Coppola,Christopher Crawford,K. Craycraft,D. Evans,Charles Fieseler,E. Frlež,I. Garishvili,Michael Gericke,R. C. Gillis,Kyle B. Grammer,Geoffrey Greene,J. Hall,J. Hamblen,C. Hayes,Erik B. Iverson,M. L. Kabir,S. Kucuker,Bernhard Lauss,R. Mahurin,M. McCrea,M. Maldonado-Velázquez,Yasuhiro Masuda,J. Mei,Robert Milburn,P. E. Mueller,M. Musgrave,H. Nann,Ivan Novikov,D. Parsons,S. I. Penttilä,Dinko Pocanic,A. Ramírez-Morales,M. Root,A. Salas-Bacci,S. Santra,S. Schröder,E. M. Scott,P. N. Seo,E. I. Sharapov,F. Simmons,W. M. Snow,A. Sprow,J. Stewart,E. Tang,Z. Tang,Xin Tong,D. J. Turkoglu,R. Whitehead,W. S. Wilburn +63 more
TL;DR: The first observation of the parity-violating gamma-ray asymmetry A_{γ}^{np} in neutron-proton capture using polarized cold neutrons incident on a liquid parahydrogen target at the Spallation Neutron Source at Oak Ridge National Laboratory is reported.