Benchmarking LHC searches for light 2HDM+a pseudoscalars
S. Argyropoulos, Ulrich Haisch
Abstract
Using two suitable benchmark scenarios that satisfy the experimental constraints on the total decay width of the 125 GeV Higgs boson, we determine the bounds on light CP-odd spin-0 states in the 2HDM+a model that arise from existing LHC searches. Our work represents the first thorough study that considers the parameter space with m_a \lesssim <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow> <mml:msub> <mml:mi>m</mml:mi> <mml:mi>a</mml:mi> </mml:msub> <mml:mo>≲</mml:mo> </mml:mrow> </mml:math> 100 GeV and should prove useful for 2HDM+a interpretations of future ATLAS, CMS and LHCb searches for pseudoscalars with masses below the electroweak scale.
Topics & Concepts
Large Hadron ColliderParticle physicsPhysicsHiggs bosonParameter spaceElectroweak interactionAtlas (anatomy)Scale (ratio)Benchmark (surveying)AlgorithmComputer scienceStatisticsCartographyMathematicsGeographyGeologyPaleontologyQuantum mechanicsParticle physics theoretical and experimental studiesDark Matter and Cosmic PhenomenaParticle Detector Development and Performance