Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 11, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP11(2014)127
Keywords
Beyond Standard Model; Effective field theories; Renormalization Group
Categories
Funding
- National Science Foundation [PHY-PHY-0969739, 1066293]
- NSF CAREER Award [NSF-PHY-1056833]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1056833] Funding Source: National Science Foundation
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Electroweak Baryogenesis (EWBG) is a compelling scenario for explaining the matter-antimatter asymmetry in the universe. Its connection to the electroweak phase transition makes it inherently testable. However, completely excluding this scenario can seem difficult in practice, due to the sheer number of proposed models. We investigate the possibility of postulating a no-lose theorem for testing EWBG in future e(+) e(-) or hadron colliders. As a first step we focus on a factorized picture of EWBG which separates the sources of a stronger phase transition from those that provide new sources of CP violation. We then construct a nightmare scenario that generates a strong first-order phase transition as required by EWBG, but is very difficult to test experimentally. We show that a 100 TeV hadron collider is both necessary and possibly sufficient for testing the parameter space of the nightmare scenario that is consistent with EWBG.
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