Published November 23, 2006
| Version v1
Journal article
Bosonic corrections to the effective weak mixing angle at O(α2)
Creators
- 1. Institute of Nuclear Physics, Radzikowskiego 152, PL-31342 Cracow (Poland)
- 2. II. Institut fuer Theoretische Physik, Universitaet Hamburg, Luruper Chaussee 149, D-22761 Hamburg (Germany)
- 3. Institut fuer Theoretische Physik und Astrophysik, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg (Germany) and Department of Field Theory and Particle Physics, Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40007 Katowice (Poland)
- 4. Institut fuer Theoretische Physik, Universitaet Zuerich, Winterthurerstrasse 190, CH-8057 Zurich (Switzerland)
Description
We present the complete bosonic contributions to the effective weak mixing angle, sin2θefflept, at the two-loop level in the electroweak interactions. We find their size to be about three times smaller than inferred from simple estimates from lower orders. In particular, for a Higgs boson mass, MH, of 100 GeV they amount to 4x10-6, and drop down by about an order of magnitude for MH=200 GeV. We estimate the intrinsic error of the theory prediction of sin2θefflept to be 4.7x10-5
Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2006.07.035;
- arXiv
- arXiv:hep-ph/0605339v1;
- PII
- S0370-2693(06)00916-6;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 642
- Journal Issue
- 5-6
- Journal Page Range
- p. 563-566
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38064705
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CORRECTIONS; ERRORS; GEV RANGE 100-1000; HIGGS BOSONS; MASS; WEINBERG ANGLE
- Descriptors DEC
- BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; POSTULATED PARTICLES
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.