Photodetachment of H{sup -} in dense quantum plasmas

Journal Article · Fri Jan 15 00:00:00 EST 2010 · Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print)

DOI:https://doi.org/10.1103/PHYSREVE.81.016403· OSTI ID:21347290

Ghoshal, Arijit; Ho, Y K ^[1]

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1. Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, Taipei, Taiwan 106 (China)

We have made an investigation to study the plasma screening effect of dense quantum plasmas on the photodetachment cross section of hydrogen negative ion within the framework of dipole approximation. Plasma screening effect has been taken care of by the exponential cosine-screened Coulomb potential (ECSCP). The asymptotic forms of highly correlated wave functions for the initial bound states of H{sup -} and the plane wave form for the final e{sup -}-H states are used to evaluate the transition matrix elements. Results for photodetachment cross section in dense quantum plasmas are reported for the plasma screening parameter in the range [0.0,0.6] (in a{sub 0}{sup -1}). In respect of the photodetachment process of H{sup -}, we have also compared the plasma screening effect of a dense quantum plasma with that of a weakly coupled plasma for which plasma screening effect has been represented by the Debye model. Our results for the unscreened case agree nicely with some of the most accurate results available in the literature.

• OSTI ID: 21347290
• Journal Information: Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print), Vol. 81, Issue 1; Other Information: DOI: 10.1103/PhysRevE.81.016403; (c) 2010 The American Physical Society; ISSN 1539-3755
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
APPROXIMATIONS
ASYMPTOTIC SOLUTIONS
BOUND STATE
COULOMB FIELD
CROSS SECTIONS
DIPOLES
ELECTRONS
HYDROGEN
HYDROGEN IONS 1 MINUS
MATRIX ELEMENTS
QUANTUM PLASMA
WAVE FUNCTIONS
WAVE PROPAGATION
ANIONS
CALCULATION METHODS
CHARGED PARTICLES
ELECTRIC FIELDS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FUNCTIONS
HYDROGEN IONS
IONS
LEPTONS
MATHEMATICAL SOLUTIONS
MULTIPOLES
NONMETALS
PLASMA