Status of the NPDGamma experiment

J. Fry; R. Alarcon; R. Allen; E. Askanazi; S. Balascuta; L. Barron-Palos; S. Baeßler; A. Barzilov; C. Blessinger; D. Blyth; J. D. Bowman; J. R. Calarco; T. E. Chupp; C. E. Coppola; C. Crawford; K. Craycraft; M. Dabaghyan; D. Evans; J. Favela; C. Fieseler; N. Fomin; W. Fox; S. Freedman; E. Frlež; C. Fu; C. Garcia; I. Garishvili; M. T. Gericke; R. C. Gillis; K. Grammer; G. L. Greene; J. Hamblen; C. Hayes; F. W. Hersman; T. Ino; E. B. Iverson; G. L. Jones; L. Kabir; S. Kucucker; B. Lauss; Y. Li; R. Mahurin; M. Maldonado-Velazquez; M. McCrea; Y. Masuda; J. Mei; R. Milburn; G. S. Mitchell; P. Mueller; S. Muto; M. Musgrave; H. Nann; I. Novikov; S. Page; D. Parsons; D. Počanić; S. I. Penttilä; W. D. Ramsay; A. Salas-Bacci; S. Santra; P. N. Seo; E. Sharapov; M. Sharma; F. Simmons; T. Smith; W. M. Snow; J. Stuart; E. Tang; Z. Tang; J. Thomison; T. Tong; J. Vanderwerp; S. Waldecker; W. S. Wilburn; W. Xu; V. Yuan; Y. Zhang

doi:10.1007/s10751-016-1376-4

Status of the NPDGamma experiment

J. Fry, R. Alarcon, R. Allen, E. Askanazi, S. Balascuta, L. Barron-Palos, S. Baeßler, A. Barzilov, C. Blessinger, D. Blyth, J. D. Bowman, J. R. Calarco, T. E. Chupp, C. E. Coppola, C. Crawford, K. Craycraft, M. Dabaghyan, D. Evans, J. Favela, C. FieselerN. Fomin, W. Fox, S. Freedman, E. Frlež, C. Fu, C. Garcia, I. Garishvili, M. T. Gericke, R. C. Gillis, K. Grammer, G. L. Greene, J. Hamblen, C. Hayes, F. W. Hersman, T. Ino, E. B. Iverson, G. L. Jones, L. Kabir, S. Kucucker, B. Lauss, Y. Li, R. Mahurin, M. Maldonado-Velazquez, M. McCrea, Y. Masuda, J. Mei, R. Milburn, G. S. Mitchell, P. Mueller, S. Muto, M. Musgrave, H. Nann, I. Novikov, S. Page, D. Parsons, D. Počanić, S. I. Penttilä, W. D. Ramsay, A. Salas-Bacci, S. Santra, P. N. Seo, E. Sharapov, M. Sharma, F. Simmons, T. Smith, W. M. Snow, J. Stuart, E. Tang, Z. Tang, J. Thomison, T. Tong, J. Vanderwerp, S. Waldecker, W. S. Wilburn, W. Xu, V. Yuan, Y. Zhang

Neutronics Group

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7 Scopus citations

Abstract

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_γ of photons from polarized cold neutron capture on protons is proportional to the ΔI=1 long range weak meson coupling hπ1 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_γ can be extracted. Preliminary results of the analysis of A_γ are presented.

Original language	English
Article number	11
Journal	Hyperfine Interactions
Volume	238
Issue number	1
DOIs	https://doi.org/10.1007/s10751-016-1376-4
State	Published - Nov 1 2017

Funding

Funders	Funder number
National Science Foundation	1614839, 1126683, 1506320, 1506021

Keywords

Few nucleon systems
Nuclear tests of fundamental symmetries
Nucleon-nucleon interactions
Parity-violation

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10.1007/s10751-016-1376-4

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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., ... Zhang, Y. (2017). Status of the NPDGamma experiment. Hyperfine Interactions, 238(1), Article 11. https://doi.org/10.1007/s10751-016-1376-4

@article{7666719b98994d09a81b9d9bdc17498f,

title = "Status of the NPDGamma experiment",

abstract = "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 Aγ of photons from polarized cold neutron capture on protons is proportional to the ΔI=1 long range weak meson coupling hπ1 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 Aγ can be extracted. Preliminary results of the analysis of Aγ are presented.",

keywords = "Few nucleon systems, Nuclear tests of fundamental symmetries, Nucleon-nucleon interactions, Parity-violation",

author = "J. Fry and R. Alarcon and R. Allen and E. Askanazi and S. Balascuta and L. Barron-Palos and S. Bae{\ss}ler and A. Barzilov and C. Blessinger and D. Blyth and Bowman, {J. D.} and Calarco, {J. R.} and Chupp, {T. E.} and Coppola, {C. E.} and C. Crawford and K. Craycraft and M. Dabaghyan and D. Evans and J. Favela and C. Fieseler and N. Fomin and W. Fox and S. Freedman and E. Frle{\v z} and C. Fu and C. Garcia and I. Garishvili and Gericke, {M. T.} and Gillis, {R. C.} and K. Grammer and Greene, {G. L.} and J. Hamblen and C. Hayes and Hersman, {F. W.} and T. Ino and Iverson, {E. B.} and Jones, {G. L.} and L. Kabir and S. Kucucker and B. Lauss and Y. Li and R. Mahurin and M. Maldonado-Velazquez and M. McCrea and Y. Masuda and J. Mei and R. Milburn and Mitchell, {G. S.} and P. Mueller and S. Muto and M. Musgrave and H. Nann and I. Novikov and S. Page and D. Parsons and D. Po{\v c}ani{\'c} and Penttil{\"a}, {S. I.} and Ramsay, {W. D.} and A. Salas-Bacci and S. Santra and Seo, {P. N.} and E. Sharapov and M. Sharma and F. Simmons and T. Smith and Snow, {W. M.} and J. Stuart and E. Tang and Z. Tang and J. Thomison and T. Tong and J. Vanderwerp and S. Waldecker and Wilburn, {W. S.} and W. Xu and V. Yuan and Y. Zhang",

note = "Publisher Copyright: {\textcopyright} 2016, Springer International Publishing Switzerland.",

year = "2017",

month = nov,

day = "1",

doi = "10.1007/s10751-016-1376-4",

language = "English",

volume = "238",

journal = "Hyperfine Interactions",

issn = "0304-3843",

publisher = "Springer",

number = "1",

}

Fry, J, Alarcon, R, Allen, R, Askanazi, E, Balascuta, S, Barron-Palos, L, Baeßler, S, Barzilov, A, Blessinger, C, Blyth, D, Bowman, JD, Calarco, JR, Chupp, TE, Coppola, CE, 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, MT, Gillis, RC, Grammer, K, Greene, GL, Hamblen, J, Hayes, C, Hersman, FW, Ino, T, Iverson, EB, Jones, GL, Kabir, L, Kucucker, S, Lauss, B, Li, Y, Mahurin, R, Maldonado-Velazquez, M, McCrea, M, Masuda, Y, Mei, J, Milburn, R, Mitchell, GS, Mueller, P, Muto, S, Musgrave, M, Nann, H, Novikov, I, Page, S, Parsons, D, Počanić, D, Penttilä, SI, Ramsay, WD, Salas-Bacci, A, Santra, S, Seo, PN, Sharapov, E, Sharma, M, Simmons, F, Smith, T, Snow, WM, Stuart, J, Tang, E, Tang, Z, Thomison, J, Tong, T, Vanderwerp, J, Waldecker, S, Wilburn, WS, Xu, W, Yuan, V & Zhang, Y 2017, 'Status of the NPDGamma experiment', Hyperfine Interactions, vol. 238, no. 1, 11. https://doi.org/10.1007/s10751-016-1376-4

TY - JOUR

T1 - Status of the NPDGamma experiment

AU - Fry, J.

AU - Alarcon, R.

AU - Allen, R.

AU - Askanazi, E.

AU - Balascuta, S.

AU - Barron-Palos, L.

AU - Baeßler, S.

AU - Barzilov, A.

AU - Blessinger, C.

AU - Blyth, D.

AU - Bowman, J. D.

AU - Calarco, J. R.

AU - Chupp, T. E.

AU - Coppola, C. E.

AU - Crawford, C.

AU - Craycraft, K.

AU - Dabaghyan, M.

AU - Evans, D.

AU - Favela, J.

AU - Fieseler, C.

AU - Fomin, N.

AU - Fox, W.

AU - Freedman, S.

AU - Frlež, E.

AU - Fu, C.

AU - Garcia, C.

AU - Garishvili, I.

AU - Gericke, M. T.

AU - Gillis, R. C.

AU - Grammer, K.

AU - Greene, G. L.

AU - Hamblen, J.

AU - Hayes, C.

AU - Hersman, F. W.

AU - Ino, T.

AU - Iverson, E. B.

AU - Jones, G. L.

AU - Kabir, L.

AU - Kucucker, S.

AU - Lauss, B.

AU - Li, Y.

AU - Mahurin, R.

AU - Maldonado-Velazquez, M.

AU - McCrea, M.

AU - Masuda, Y.

AU - Mei, J.

AU - Milburn, R.

AU - Mitchell, G. S.

AU - Mueller, P.

AU - Muto, S.

AU - Musgrave, M.

AU - Nann, H.

AU - Novikov, I.

AU - Page, S.

AU - Parsons, D.

AU - Počanić, D.

AU - Penttilä, S. I.

AU - Ramsay, W. D.

AU - Salas-Bacci, A.

AU - Santra, S.

AU - Seo, P. N.

AU - Sharapov, E.

AU - Sharma, M.

AU - Simmons, F.

AU - Smith, T.

AU - Snow, W. M.

AU - Stuart, J.

AU - Tang, E.

AU - Tang, Z.

AU - Thomison, J.

AU - Tong, T.

AU - Vanderwerp, J.

AU - Waldecker, S.

AU - Wilburn, W. S.

AU - Xu, W.

AU - Yuan, V.

AU - Zhang, Y.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - 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 Aγ of photons from polarized cold neutron capture on protons is proportional to the ΔI=1 long range weak meson coupling hπ1 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 Aγ can be extracted. Preliminary results of the analysis of Aγ are presented.

AB - 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 Aγ of photons from polarized cold neutron capture on protons is proportional to the ΔI=1 long range weak meson coupling hπ1 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 Aγ can be extracted. Preliminary results of the analysis of Aγ are presented.

KW - Few nucleon systems

KW - Nuclear tests of fundamental symmetries

KW - Nucleon-nucleon interactions

KW - Parity-violation

UR - http://www.scopus.com/inward/record.url?scp=85007439008&partnerID=8YFLogxK

U2 - 10.1007/s10751-016-1376-4

DO - 10.1007/s10751-016-1376-4

M3 - Article

AN - SCOPUS:85007439008

SN - 0304-3843

VL - 238

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1

M1 - 11

ER -

Status of the NPDGamma experiment

Abstract

Funding

Keywords

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