A new twist to the long-standing three-nucleon analyzing power puzzle

E. M. Neidel; W. Tornow; D. E. González Trotter; C. R. Howell; A. S. Crowell; R. A. Macri; R. L. Walter; G. J. Weisel; J. Esterline; H. Witała; B. J. Crowe; R. S. Pedroni; D. M. Markoff

doi:10.1016/S0370-2693(02)03106-4

A new twist to the long-standing three-nucleon analyzing power puzzle

E. M. Neidel
, W. Tornow
, D. E. González Trotter
, C. R. Howell
, A. S. Crowell
, R. A. Macri
, R. L. Walter
, G. J. Weisel
, J. Esterline
, H. Witała
, B. J. Crowe
, R. S. Pedroni
, D. M. Markoff

Division of Mathematics & Natural Sciences (Altoona)

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

New results for the neutron-deuteron analyzing power A_y(θ) at E_n = 1.2 and 1.9 MeV and their comparison to proton-deuteron data reveal a sizeable and unexpected difference which increases with decreasing center-of-mass energy. This finding calls for the theoretical treatment of a subtle electromagnetic effect presently not incorporated in rigorous three-nucleon scattering calculations, before it is justified to invoke charge-dependent three-nucleon forces and/or other new physics.

Original language	English (US)
Pages (from-to)	29-34
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	552
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(02)03106-4
State	Published - Jan 16 2003

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/S0370-2693(02)03106-4

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Neidel, E. M., Tornow, W., González Trotter, D. E., Howell, C. R., Crowell, A. S., Macri, R. A., Walter, R. L., Weisel, G. J., Esterline, J., Witała, H., Crowe, B. J., Pedroni, R. S., & Markoff, D. M. (2003). A new twist to the long-standing three-nucleon analyzing power puzzle. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 552(1-2), 29-34. https://doi.org/10.1016/S0370-2693(02)03106-4

@article{856a5e42b3e44b7bb51f5d6bacb03425,

title = "A new twist to the long-standing three-nucleon analyzing power puzzle",

abstract = "New results for the neutron-deuteron analyzing power Ay(θ) at En = 1.2 and 1.9 MeV and their comparison to proton-deuteron data reveal a sizeable and unexpected difference which increases with decreasing center-of-mass energy. This finding calls for the theoretical treatment of a subtle electromagnetic effect presently not incorporated in rigorous three-nucleon scattering calculations, before it is justified to invoke charge-dependent three-nucleon forces and/or other new physics.",

author = "Neidel, \{E. M.\} and W. Tornow and \{Gonz{\'a}lez Trotter\}, \{D. E.\} and Howell, \{C. R.\} and Crowell, \{A. S.\} and Macri, \{R. A.\} and Walter, \{R. L.\} and Weisel, \{G. J.\} and J. Esterline and H. Wita{\l}a and Crowe, \{B. J.\} and Pedroni, \{R. S.\} and Markoff, \{D. M.\}",

note = "Funding Information: This work was supported in part by the US Department of Energy, Office of High-Energy and Nuclear Physics, under grant No. DE-FG02-97ER41033 and DE-FG02-97ER41042. The authors would like to thank C.R. Jackson, NC A\&T State University for helping with data taking.",

year = "2003",

month = jan,

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doi = "10.1016/S0370-2693(02)03106-4",

language = "English (US)",

volume = "552",

pages = "29--34",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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Neidel, EM, Tornow, W, González Trotter, DE, Howell, CR, Crowell, AS, Macri, RA, Walter, RL, Weisel, GJ, Esterline, J, Witała, H, Crowe, BJ, Pedroni, RS & Markoff, DM 2003, 'A new twist to the long-standing three-nucleon analyzing power puzzle', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 552, no. 1-2, pp. 29-34. https://doi.org/10.1016/S0370-2693(02)03106-4

TY - JOUR

T1 - A new twist to the long-standing three-nucleon analyzing power puzzle

AU - Neidel, E. M.

AU - Tornow, W.

AU - González Trotter, D. E.

AU - Howell, C. R.

AU - Crowell, A. S.

AU - Macri, R. A.

AU - Walter, R. L.

AU - Weisel, G. J.

AU - Esterline, J.

AU - Witała, H.

AU - Crowe, B. J.

AU - Pedroni, R. S.

AU - Markoff, D. M.

N1 - Funding Information: This work was supported in part by the US Department of Energy, Office of High-Energy and Nuclear Physics, under grant No. DE-FG02-97ER41033 and DE-FG02-97ER41042. The authors would like to thank C.R. Jackson, NC A&T State University for helping with data taking.

PY - 2003/1/16

Y1 - 2003/1/16

N2 - New results for the neutron-deuteron analyzing power Ay(θ) at En = 1.2 and 1.9 MeV and their comparison to proton-deuteron data reveal a sizeable and unexpected difference which increases with decreasing center-of-mass energy. This finding calls for the theoretical treatment of a subtle electromagnetic effect presently not incorporated in rigorous three-nucleon scattering calculations, before it is justified to invoke charge-dependent three-nucleon forces and/or other new physics.

AB - New results for the neutron-deuteron analyzing power Ay(θ) at En = 1.2 and 1.9 MeV and their comparison to proton-deuteron data reveal a sizeable and unexpected difference which increases with decreasing center-of-mass energy. This finding calls for the theoretical treatment of a subtle electromagnetic effect presently not incorporated in rigorous three-nucleon scattering calculations, before it is justified to invoke charge-dependent three-nucleon forces and/or other new physics.

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

A new twist to the long-standing three-nucleon analyzing power puzzle

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