Positron scattering and annihilation from the hydrogen molecule at zero energy.
نویسندگان
چکیده
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 approximately = -2.7a(0) while the zero energy Z(eff) of 15.7 is compatible with experimental values. The variation of the scattering length and Z(eff) with internuclear distance was surprisingly rapid due to virtual state formation at R approximately = 3.4a(0).
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ورودعنوان ژورنال:
- Physical review letters
دوره 103 22 شماره
صفحات -
تاریخ انتشار 2009