High Energy Particle Physics


A Relativistic QFT Basis for Spin-0 Boson Mass Differences in CMS and Atlas

Authors: Nige Cook

CERN’s Large Hadron Collider detected a possible difference in masses between the CMS detector channels for electromagnetic decay (h→γγ) and ATLAS’s weak boson decay chain detector (h→ZZ→4l); ATLAS gave 123.5 GeV for weak decay chain h→ZZ→4l, while CMS gave 126.5 GeV for h→γγ. We argue that if this mass difference is real (rather than a systematic detector miscalibration of some kind), it indicates a statistical relativistic effect: the Lorentz contraction in the direction of motion affects self-interactions of a moving spin-0 massless boson with its own field quanta, affecting weak and electromagnetic decays to a differing extent. So in a spectrum of massive spin-0 boson velocities produced by an LHC collision, the fastest moving massive spin-0 bosons could be more likely than expected to decay by double gamma emission; the slower ones might be expected to be more likely than expected to undergo weak decays and four lepton emissions. The higher the speed, the greater the slowing due to time-dilation on massive Z boson decay processes, whereas there is no time-dilation velocity effect for massless gammas (which go at light velocity in regardless).

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Submission history

[v1] 2012-11-21 08:32:25

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