Yukawa Interactions and Supersymmetric Electroweak Baryogenesis

Journal Article · Fri Feb 13 00:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.061301· OSTI ID:21180191

Chung, Daniel J. H.; Garbrecht, Bjoern ^[1]; Ramsey-Musolf, Michael J ^[1]; Tulin, Sean ^[2]

---

1. University of Wisconsin, Madison, Wisconsin 53706-1390 (United States)
2. California Institute of Technology, Pasadena, California 91125 (United States)

We analyze the quantum transport equations for supersymmetric electroweak baryogenesis including previously neglected bottom and tau Yukawa interactions and show that they imply the presence of a previously unrecognized dependence of the cosmic baryon asymmetry on the spectrum of third generation quark and lepton superpartners. For fixed values of the CP-violating phases in the supersymmetric theory, the baryon asymmetry can vary in both magnitude and sign as a result of the squark and slepton mass dependence. For light, right-handed top and bottom quark superpartners, the baryon number creation can be driven primarily by interactions involving third generation leptons and their superpartners.

• OSTI ID: 21180191
• Journal Information: Physical Review Letters, Vol. 102, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.102.061301; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B QUARKS
BARYON NUMBER
BARYONS
CP INVARIANCE
INTERACTIONS
LEPTONS
MASS
PARTICLE PRODUCTION
SUPERSYMMETRY
TRANSPORT THEORY
YUKAWA NONLOCAL THEORY