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Title: 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:
 [1];  [2]; ORCiD logo [2]
  1. Ohio Univ., Athens, OH (United States)
  2. 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}
}

Journal Article:

Citation Metrics:
Cited by: 2 works
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Figures / Tables:

TABLE I. 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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Works referenced in this record:

Alternative parametrization of R -matrix theory
journal, October 2002


On Positivity of Fourier Transforms
journal, January 2006


R-Matrix Theory of Nuclear Reactions
journal, April 1958


LXXV. Integral representations for products of Whittaker functions
journal, November 1938

  • Erdélyi, A.
  • The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, Vol. 26, Issue 178
  • DOI: 10.1080/14786443808562178

Some Properties of the Shift and Penetration Factors in Nuclear Reactions
journal, January 1958


Theory of the Effective Range in Nuclear Scattering
journal, July 1949


Product Formulas and Nicholson-Type Integrals for Jacobi Functions. I: Summary of Results
journal, February 1978

  • Durand, Loyal
  • SIAM Journal on Mathematical Analysis, Vol. 9, Issue 1
  • DOI: 10.1137/0509007

The R -matrix theory
journal, February 2010


Regular and Irregular Coulomb Wave Functions Expressed in Terms of Bessel-Clifford Functions
journal, April 1954


Bessel function expansions of Coulomb wave functions
journal, April 1985

  • Humblet, J.
  • Journal of Mathematical Physics, Vol. 26, Issue 4
  • DOI: 10.1063/1.526602

Wave Functions for Large Arguments by the Amplitude-Phase Method
journal, December 1937


Completely monotonic functions
journal, December 2001


A note on the calculation of Coulomb penetration and Coulomb wave functions
journal, April 1957


T matrix and effective range function for Coulomb plus rational separable potentials especially for I =1
journal, May 1977

  • van Haeringen, H.
  • Journal of Mathematical Physics, Vol. 18, Issue 5
  • DOI: 10.1063/1.523373

Higher monotonicity properties of certain Sturm-Liouville functions
journal, January 1963


On Differential Equations and the Function $J_\{mu}^2 + Y_\{mu}^2$
journal, January 1961

  • Hartman, Philip
  • American Journal of Mathematics, Vol. 83, Issue 1
  • DOI: 10.2307/2372726

On the Determination of Reduced Widths from the One-Level Dispersion Formula
journal, January 1951


On Differential Equations, Volterra Equations and the Function J 2 μ + Y 2 μ
journal, October 1973

  • Hartman, Phillip
  • American Journal of Mathematics, Vol. 95, Issue 3
  • DOI: 10.2307/2373730

Pole structure of the J π = 3 / 2 + resonance in He 5
journal, August 1987


Bessel functions for large arguments
journal, January 1958


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.