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hep-ph2026
A Step in Flux to Suppress Axion Isocurvature
Priyesh Chakraborty, Junyi Cheng, Matthew Reece +1
The QCD axion in the pre-inflation scenario faces a stringent isocurvature constraint, which requires a relatively low Hubble scale during inflation. If the axion was heavier than…
hep-ph2024
Limits on an Exotic Higgs Decay From a Recast ATLAS Four-Lepton Analysis
Junyi Cheng, Rabia Husain, Lingfeng Li +1
The ATLAS collaboration, using 139 fb of 13 TeV collisions from the Large Hadron Collider, has placed limits on the decay of a boson to three dark photons. We reproduce…
hep-ph2024
The Phase Space Distance Between Collider Events
Tianji Cai, Junyi Cheng, Nathaniel Craig +2
How can one fully harness the power of physics encoded in relativistic -body phase space? Topologically, phase space is isomorphic to the product space of a simplex and a hypers…