Journal
EUROPEAN PHYSICAL JOURNAL A
Volume 56, Issue 7, Pages -Publisher
SPRINGER
DOI: 10.1140/epja/s10050-020-00181-1
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Funding
- Indian Institute of Technology Gandhinagar
- Saha Institute of Nuclear Physics, Kolkata
- Department of Atomic Energy (DAE), Government of India
- SERB, Government of India [ECRA/2016/000683]
- INSA-Department of Science and Technology, Government of India for INSPIRE Faculty award [IFA-13/PH-55]
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The cross-section for the lowest order 2 -> 2 elastic scattering between two charged scalars under external magnetic field mediated via a neutral scalar, has been computed in strong as well as weak magnetic field limits. This has been done by applying the optical theorem where the cross-section is expressed in terms of the imaginary parts of different one-loop graphs contributing to the forward scattering amplitudes. The modification in the amplitudes due to the external magnetic field has been done by means of replacing the charged scalar propagators with the Schwinger proper-time ones. Significant modifications of the cross-sections with respect to the vacuum cross-section are observed due to the external magnetic field.
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