Sommerfeld enhancement for a Yukawa potential

2009/03/02 by Roberto Iengo, R. Iengo, Iengo, R. · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Strong Light-Matter Interactions #astro-ph.HE #hep-ph #hep-th

paper · pdf · doi:10.48550/arxiv.0903.0317

5 pages, figures showing the P wave resonance pattern added

openalex publication_date 2009/03/02 · arxiv created 2009/03/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show how easy it is to get the Sommerfeld enhancement for a Yukawa potential, for definite partial waves, beyond the S wave analyzed in previous literature. In particular, we report results for the P wave (for which there is a resonant pattern and the enhancement can be of several orders of magnitude even far from the resonance) that could be relevant for the analysis of experimental cosmic rays data possibly signaling the annihilation of dark matter particles.

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