Higgs Boson Decays into Single Photon plus Unparticle
Kingman Cheung, Chong Sheng Li, Tzu-Chiang Yuan
TL;DR
This paper investigates the decay of the Higgs boson into a photon and an unparticle, revealing a potentially detectable decay mode with a continuous photon energy spectrum that can inform unparticle physics.
Contribution
It introduces the one-loop decay process of the Higgs into a photon and unparticle, highlighting its comparable branching ratio to the two-photon mode for intermediate mass Higgs.
Findings
Branching ratio comparable to two-photon decay mode.
Photon energy spectrum encodes unparticle properties.
Potential for precision Higgs studies post-discovery.
Abstract
The decay of the standard model Higgs boson into a single photon and a vector unparticle through a one-loop process is studied. For an intermediate mass Higgs boson, this single photon plus unparticle mode can have a branching ratio comparable with the two-photon discovery mode. The emitted photon has a continuous energy spectrum encoding the nature of the recoil unparticle. It can be measured in precision studies of the Higgs boson after its discovery.
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