2002/04/02 by Pranav Saxena, P. Saxena, Prachi Parashar +10
Earth and Planetary Sciences · Physics and Astronomy · #FOS: Physical sciences #Geophysics and Gravity Measurements #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0204019
15 pages, 6 tables, 4 figures
arxiv created 2002/04/02 · openalex publication_date 2002/04/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Keeping in view the suggestion of Barr and Marciano [7] that the cut of procedure involves a good deal of uncertainity in the prediction of E.D.M. of W - boson, we have re-examined the earlier calculation by Marciano and Queijeiro [2] by replacing the Cut-off regularization process by BPHZ regularization[8]. This works in a clean and unambiguous manner without involving any approximation. We also examine apparently inapplicable approximations like using m(f) = m(f')in [2]. The bounds on lambda(w) and d(w) are significantly changed in all cases as compared with those reported in [2]. The necessary caution that is to be excercised while using approximations is explicitly pointed out. PACS number (s): 13.40. Em