Doubly charged Higgs bosons pair production through WW fusion at high-energy e+e− linear colliders

Jie-Fen Shen; Zhen-Xin Li

doi:10.1209/0295-5075/111/31001

All issues

Volume 111 / No 3 (August 2015)

EPL, 111 3 (2015) 31001

Abstract

Issue		EPL Volume 111, Number 3, August 2015


Article Number		31001
Number of page(s)		6
Section		The Physics of Elementary Particles and Fields
DOI		https://doi.org/10.1209/0295-5075/111/31001
Published online		26 August 2015

EPL, 111 (2015) 31001

Doubly charged Higgs bosons pair production through WW fusion at high-energy e⁺e⁻ linear colliders

Jie-Fen Shen^(a) and Zhen-Xin Li

School of Biomedical Engineering, Xinxiang Medical University - Xinxiang 453003, PRC and Sanquan Medical College, Xinxiang Medical University - Xinxiang 453003, PRC

^(a) shjf@xxmu.edu.cn

Received: 19 May 2015
Accepted: 28 July 2015

Abstract

The doubly charged Higgs bosons $H^{\pm\pm}$ are the typical particles predicted in the Higgs triplet model (HTM), and the detection of them is a key to probe this model. In this letter, we focus on the study of the doubly charged Higgs bosons pair production through WW fusion process: $e^{+}e^{-}\rightarrow W^{\ast}W^{\ast}\rightarrow H^{++}H^{--}\nu_{e}\bar{\nu}_{e}$ . We calculate the production cross-sections and compare the results with those in the s-channel pair production process: $e^{+}e^{-}\rightarrow H^{++}H^{--}$ . The final signals and the relevant SM backgrounds are also examined based on two main decay modes of $H^{\pm\pm}$ : $H^{\pm\pm}\rightarrow W^{\pm}W^{\pm}$ and $H^{\pm\pm}\rightarrow \ell^{\pm}_{i}\ell^{\pm}_{j}$ ( $\ell_{i}=e, \mu, \tau$ ). Our numerical results show that, the possible signals of $H^{\pm\pm}$ might be observed via this process in future high-energy $e^{+}e^{-}$ linear-collider experiments.

PACS: 12.60.Fr – Extensions of electroweak Higgs sector / 13.66.Hk – Production of non-standard model particles in / 14.80.Fd – Other charged Higgs bosons

© EPLA, 2015

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