Monotonic properties of the shift and penetration factors
Abstract
Here, we study derivatives of the shift and penetration factors of collision theory with respect to energy, angular momentum, and charge. Definitive results for the signs of these derivatives are found for the repulsive Coulomb case. In particular, we find that the derivative of the shift factor with respect to energy is positive for the repulsive Coulomb case, a long anticipated but heretofore unproven result. In conclusion, these results are closely connected to the properties of the sum of squares of the regular and irregular Coulomb functions; we also present investigations of this quantity.
- Authors:
-
- Ohio Univ., Athens, OH (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1479931
- Alternate Identifier(s):
- OSTI ID: 1419605
- Report Number(s):
- LA-UR-17-29016
Journal ID: ISSN 2469-9985; PRVCAN
- Grant/Contract Number:
- AC52-06NA25396; FG02-88ER40387; NA0002905
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 97; Journal Issue: 2; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Atomic and Nuclear Physics; R-matrix theory
Citation Formats
Brune, Carl Richard, Hale, Gerald M., and Paris, Mark W. Monotonic properties of the shift and penetration factors. United States: N. p., 2018.
Web. doi:10.1103/PhysRevC.97.024603.
Brune, Carl Richard, Hale, Gerald M., & Paris, Mark W. Monotonic properties of the shift and penetration factors. United States. https://doi.org/10.1103/PhysRevC.97.024603
Brune, Carl Richard, Hale, Gerald M., and Paris, Mark W. Mon .
"Monotonic properties of the shift and penetration factors". United States. https://doi.org/10.1103/PhysRevC.97.024603. https://www.osti.gov/servlets/purl/1479931.
@article{osti_1479931,
title = {Monotonic properties of the shift and penetration factors},
author = {Brune, Carl Richard and Hale, Gerald M. and Paris, Mark W.},
abstractNote = {Here, we study derivatives of the shift and penetration factors of collision theory with respect to energy, angular momentum, and charge. Definitive results for the signs of these derivatives are found for the repulsive Coulomb case. In particular, we find that the derivative of the shift factor with respect to energy is positive for the repulsive Coulomb case, a long anticipated but heretofore unproven result. In conclusion, these results are closely connected to the properties of the sum of squares of the regular and irregular Coulomb functions; we also present investigations of this quantity.},
doi = {10.1103/PhysRevC.97.024603},
journal = {Physical Review C},
number = 2,
volume = 97,
place = {United States},
year = {Mon Feb 05 00:00:00 EST 2018},
month = {Mon Feb 05 00:00:00 EST 2018}
}
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Figures / Tables:
TABLE I.: Summary of the result of Secs. III and IV for the variation of S and P with E, $\ell$, and η. The second column is deduced from the first using Eqs. (11) and (12).
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