Study on space-time structure of Higgs boson decay using HBT correlation Method in e${}^{+}$e${}^{-}$ collision at $\sqrt{s}$=250 GeV

Abstract

The space-time structure of the Higgs boson decay are carefully studied with the HBT correlation method using e${}^{+}$e${}^{-}$ collision events produced through Monte Carlo generator PYTHIA 8.2 at $\sqrt{s}$=250GeV. The Higgs boson jets (Higgs-jets) are identified by H-tag tracing. The measurement of the Higgs boson radius and decay lifetime are derived from HBT correlation of its decay final state pions inside Higgs-jets in the e${}^{+}$e${}^{-}$ collisions events with an upper bound of $R_H\le 1.03\pm 0.05$ fm and ${\tau }_H\le (1.29\pm 0.15)\times 10^{-7}$ fs. This result is consistent with CMS data.

arXiv comment7 pages,3 figures

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