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Krein Regularization of λϕ 4

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Abstract

We calculate the four-point function in λϕ 4 theory by using Krein regularization and compare our result, which is finite, with the usual result in λϕ 4 theory. The effective coupling constant (λ μ ) is also calculated in this method.

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Acknowledgements

The author is grateful to M.V. Takook for his helpful discussions.

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  1. Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran

    B. Forghan

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  1. B. Forghan
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Correspondence to B. Forghan.

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Forghan, B. Krein Regularization of λϕ 4 . Int J Theor Phys 51, 1503–1508 (2012). https://doi.org/10.1007/s10773-011-1026-1

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  • DOI: https://doi.org/10.1007/s10773-011-1026-1

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