Positron Scattering and Annihilation from the Hydrogen Molecule at Zero Energy

Jun-Yi Zhang; James Mitroy; K VARGA

Positron Scattering and Annihilation from the Hydrogen Molecule at Zero Energy

Jun-Yi Zhang, James Mitroy, K VARGA

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

Abstract

The confined variational method is used to generate a basis of correlated Gaussians to describe the interaction region wave function for positron scattering from the H2 molecule. The scattering length was ?-2.7a0 while the zero energy Zeff of 15.7 is compatible with experimental values. The variation of the scattering length and Zeff with internuclear distance was surprisingly rapid due to virtual state formation at R?3.4a0. � 2009 The American Physical Society.

Original language	English
Pages (from-to)	223202-
Journal	Physical Review Letters
Volume	103
Issue number	22
Publication status	Published - 2009

Cite this

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title = "Positron Scattering and Annihilation from the Hydrogen Molecule at Zero Energy",

abstract = "The confined variational method is used to generate a basis of correlated Gaussians to describe the interaction region wave function for positron scattering from the H2 molecule. The scattering length was ?-2.7a0 while the zero energy Zeff of 15.7 is compatible with experimental values. The variation of the scattering length and Zeff with internuclear distance was surprisingly rapid due to virtual state formation at R?3.4a0. � 2009 The American Physical Society.",

keywords = "Experimental values, Gaussians, H2 molecule, Hydrogen molecule, Interaction region, Internuclear distances, Positron scattering, Scattering length, Variational methods, Virtual state, Positrons, Wave functions, Scattering",

author = "Jun-Yi Zhang and James Mitroy and K VARGA",

year = "2009",

language = "English",

volume = "103",

pages = "223202--",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "22",

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TY - JOUR

T1 - Positron Scattering and Annihilation from the Hydrogen Molecule at Zero Energy

AU - Zhang, Jun-Yi

AU - Mitroy, James

AU - VARGA, K

PY - 2009

Y1 - 2009

N2 - The confined variational method is used to generate a basis of correlated Gaussians to describe the interaction region wave function for positron scattering from the H2 molecule. The scattering length was ?-2.7a0 while the zero energy Zeff of 15.7 is compatible with experimental values. The variation of the scattering length and Zeff with internuclear distance was surprisingly rapid due to virtual state formation at R?3.4a0. � 2009 The American Physical Society.

AB - The confined variational method is used to generate a basis of correlated Gaussians to describe the interaction region wave function for positron scattering from the H2 molecule. The scattering length was ?-2.7a0 while the zero energy Zeff of 15.7 is compatible with experimental values. The variation of the scattering length and Zeff with internuclear distance was surprisingly rapid due to virtual state formation at R?3.4a0. � 2009 The American Physical Society.

KW - Experimental values

KW - Gaussians

KW - H2 molecule

KW - Hydrogen molecule

KW - Interaction region

KW - Internuclear distances

KW - Positron scattering

KW - Scattering length

KW - Variational methods

KW - Virtual state

KW - Positrons

KW - Wave functions

KW - Scattering

M3 - Article

VL - 103

SP - 223202-

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 22

ER -

Positron Scattering and Annihilation from the Hydrogen Molecule at Zero Energy

Abstract

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