# Theory Seminar/Dutta

Category 2016/06/23（Thu） 1:30 PM 2016/06/23（Thu） 2:30 PM Kenkyu-honkan 1F meeting room 3 Constraints on Anomalous Couplings from Perturbative Unitarity Dr.Sukanta Dutta (SGTB Khalsa College, University of Delhi) 英語/English Ryusuke Jinno/jinno-AT-post.kek.jp 利用予定なし／0

## Abstract

（ABSTRACT）

We perform a model independent analysis of the helicity amplitudes at high energy for all the 2 $\to$ 2 scattering processes involving gauge and Higgs bosons in the presence of anomalous $WWV, WWVV, VVH, VVHH$ ($V \equiv Z, gamma$ and $W^\pm$), $HHHH$ and $HHH$ interactions. Further, assuming all anomalous couplings to have arisen only from dimension six operators, we show that the per- turbative unitarity violation can be evaded up to $\sim$ 9 TeV corresponding to the best fit values of $f_{WW}/\Lambda^2$ and $f_{BB}/\Lambda^2$ from the combined analysis of Tevatron and LHC data.

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