Status of the NPDGamma experiment
Por:
Fry, J., Alarcon, R., Allen, R., Askanazi, E., Balascuta, S., Barron-Palos, L., Baeßler, S., Barzilov, A., Blessinger, C., Blyth, D., Bowman, J.D., Calarco, J.R., Chupp, T.E., Coppola, C.E., Crawford, C., Craycraft, K., Dabaghyan, M., Evans, D., Favela, J., Fieseler, C., Fomin, N., Fox, W., Freedman, S., Frlež, E., Fu, C., Garcia, C., Garishvili, I., Gericke, M.T., Gillis, R.C., Grammer, K., Greene, G.L., Hamblen, J., Hayes, C., Hersman, F.W., Ino, T., Iverson, E.B., Jones, G.L., Kabir, L., Kucucker, S., Lauss, B., Li, Y., Mahurin, R., Maldonado-Velazquez, M., McCrea, M., Masuda, Y., Mei, J., Milburn, R., Mitchell, G.S., Mueller, P., Muto, S., Musgrave, M., Nann, H., Novikov, I., Page, S., Parsons, D., Pocanic, D., Penttilä, S.I., Ramsay, W.D., Salas-Bacci, A., Santra, S., Seo, P.-N., Sharapov, E., Sharma, M., Simmons, F., Smith, T., Snow, W.M., Stuart, J., Tang, E., Tang, Z., Thomison, J., Tong, T., Vanderwerp, J., Waldecker, S., Wilburn, W.S., Xu, W., Yuan, V., Zhang, Y.
Publicada:
1 ene 2017
Resumen:
The NPDGamma experiment measures 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). The (PV) neutron spin asymmetry A? of photons from polarized cold neutron capture on protons is proportional to the I=1 long range weak meson coupling hp1 between nucleons in the hadronic weak interaction (HWI). Liquid para-hydrogen production data taking concluded in April 2014 and once the background aluminum asymmetry measurements are complete, the PV asymmetry A? can be extracted. Preliminary results of the analysis of A? are presented. © 2016, Springer International Publishing Switzerland.
Filiaciones:
Fry, J.:
University of Virginia, Charlottesville, VA, United States
Alarcon, R.:
Arizona State University, Tempe, AZ, United States
Allen, R.:
Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN, United States
Askanazi, E.:
University of Virginia, Charlottesville, VA, United States
Balascuta, S.:
Arizona State University, Tempe, AZ, United States
Barron-Palos, L.:
Universidad Nacional Autónoma de México, Mexico City, Mexico
Baeßler, S.:
University of Virginia, Charlottesville, VA, United States
Barzilov, A.:
University of Nevada, 4505 S Maryland Pkwy, Las Vegas, NV, United States
Blessinger, C.:
Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN, United States
Blyth, D.:
Arizona State University, Tempe, AZ, United States
Bowman, J.D.:
Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN, United States
Calarco, J.R.:
University of New Hampshire, 105 Main St, Durham, NH, United States
Chupp, T.E.:
University of Michigan, 500 S State St, Ann Arbor, MI, United States
Coppola, C.E.:
University of Tennessee, Knoxville, TN, United States
Crawford, C.:
University of Kentucky, Lexington, KY, United States
Craycraft, K.:
University of Kentucky, Lexington, KY, United States
Dabaghyan, M.:
University of New Hampshire, 105 Main St, Durham, NH, United States
Evans, D.:
University of Virginia, Charlottesville, VA, United States
Favela, J.:
Universidad Nacional Autónoma de México, Mexico City, Mexico
Fieseler, C.:
University of Kentucky, Lexington, KY, United States
Fomin, N.:
University of Tennessee, Knoxville, TN, United States
Fox, W.:
Indiana University, 107 S Indiana Ave, Bloomington, IN, United States
Freedman, S.:
University of California Berkeley, Berkeley, CA, United States
Frlež, E.:
University of Virginia, Charlottesville, VA, United States
Fu, C.:
Indiana University, 107 S Indiana Ave, Bloomington, IN, United States
Garcia, C.:
Universidad Nacional Autónoma de México, Mexico City, Mexico
Garishvili, I.:
University of Tennessee, Knoxville, TN, United States
Gericke, M.T.:
University of Manitoba, Winnipeg, Canada
Gillis, R.C.:
Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN, United States
Grammer, K.:
University of Tennessee, Knoxville, TN, United States
Greene, G.L.:
University of Tennessee, Knoxville, TN, United States
Hamblen, J.:
University of Tennessee at Chattanooga, 615 McCallie Ave, Chattanooga, TN, United States
Hayes, C.:
University of Tennessee, Knoxville, TN, United States
Hersman, F.W.:
University of New Hampshire, 105 Main St, Durham, NH, United States
Ino, T.:
High Energy Accelerator Research Organization (KEK), Tokyo, Japan
Iverson, E.B.:
Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN, United States
Jones, G.L.:
Hamilton College, 198 College Hill Rd, Clinton, NY, United States
Kabir, L.:
University of Kentucky, Lexington, KY, United States
Kucucker, S.:
University of Tennessee, Knoxville, TN, United States
Lauss, B.:
Paul Scherrer Institute, Villigen, Switzerland
Li, Y.:
Shanghai Institute of Applied Physics, 239 Zhangheng Rd, Pudong Xinqu, China
Mahurin, R.:
University of Manitoba, Winnipeg, Canada
Maldonado-Velazquez, M.:
Universidad Nacional Autónoma de México, Mexico City, Mexico
McCrea, M.:
University of Manitoba, Winnipeg, Canada
Masuda, Y.:
High Energy Accelerator Research Organization (KEK), Tokyo, Japan
Mei, J.:
Indiana University, 107 S Indiana Ave, Bloomington, IN, United States
Milburn, R.:
University of Kentucky, Lexington, KY, United States
Mitchell, G.S.:
University of California at Davis, 1 Shields Ave, Davis, CA, United States
Mueller, P.:
Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN, United States
Muto, S.:
High Energy Accelerator Research Organization (KEK), Tokyo, Japan
Musgrave, M.:
University of Tennessee, Knoxville, TN, United States
Nann, H.:
Indiana University, 107 S Indiana Ave, Bloomington, IN, United States
Novikov, I.:
Western Kentucky University, 1906 College Heights Blvd, Bowling Green, KY, United States
Page, S.:
University of Manitoba, Winnipeg, Canada
Parsons, D.:
University of Tennessee at Chattanooga, 615 McCallie Ave, Chattanooga, TN, United States
Pocanic, D.:
University of Virginia, Charlottesville, VA, United States
Penttilä, S.I.:
Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN, United States
Ramsay, W.D.:
TRIUMF, Vancouver, BC, Canada
Salas-Bacci, A.:
University of Virginia, Charlottesville, VA, United States
Santra, S.:
Bhabha Atomic Research Center, Mumbai, India
Seo, P.-N.:
Duke University, Durham, NC, United States
Sharapov, E.:
Joint Institute of Nuclear Research, Dubna, Russian Federation
Sharma, M.:
University of Michigan, 500 S State St, Ann Arbor, MI, United States
Simmons, F.:
University of Kentucky, Lexington, KY, United States
Smith, T.:
University of Dayton, 300 College Park, Dayton, OH, United States
Snow, W.M.:
Indiana University, 107 S Indiana Ave, Bloomington, IN, United States
Stuart, J.:
University of Tennessee at Chattanooga, 615 McCallie Ave, Chattanooga, TN, United States
Tang, E.:
University of Kentucky, Lexington, KY, United States
Tang, Z.:
Los Alamos National Laboratory, Los Alamos, NM, United States
Thomison, J.:
Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN, United States
Tong, T.:
Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN, United States
Vanderwerp, J.:
Indiana University, 107 S Indiana Ave, Bloomington, IN, United States
Waldecker, S.:
University of Tennessee at Chattanooga, 615 McCallie Ave, Chattanooga, TN, United States
Wilburn, W.S.:
Los Alamos National Laboratory, Los Alamos, NM, United States
Xu, W.:
Shanghai Institute of Applied Physics, 239 Zhangheng Rd, Pudong Xinqu, China
Yuan, V.:
Los Alamos National Laboratory, Los Alamos, NM, United States
Zhang, Y.:
Lanzhou University, 222 Tianshui S Rd, Lanzhou Shi Gansu, China
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