Pair production of scalars at the ILC in the Higgs triplet model under the non-degenerate case

Jie-Fen Shen; Yan-Ping Bi; Zhen-Xin Li

doi:10.1209/0295-5075/112/31002

All issues

Volume 112 / No 3 (November 2015)

EPL, 112 3 (2015) 31002

Abstract

Issue		EPL Volume 112, Number 3, November 2015


Article Number		31002
Number of page(s)		6
Section		The Physics of Elementary Particles and Fields
DOI		https://doi.org/10.1209/0295-5075/112/31002
Published online		24 November 2015

EPL, 112 (2015) 31002

Pair production of scalars at the ILC in the Higgs triplet model under the non-degenerate case

Jie-Fen Shen¹^,2^(a), Yan-Ping Bi¹ and Zhen-Xin Li¹

¹ Department of Biomedical Engineering, Xinxiang Medical University - Xinxiang 453003, PRC
² Sanquan Medical College, Xinxiang Medical University - Xinxiang 453003, PRC

^(a) shjf@xxmu.edu.cn

Received: 17 September 2015
Accepted: 2 November 2015

Abstract

The new scalars (H^±±, H^±± and H/A) are the typical particles predicted by the Higgs Triplet Model (HTM) and the observation of these particles can be regarded as the direct evidence of the HTM. In this letter, we study three pair production processes of these scalars, i.e., $e^{+}e^{-}\to H^{++}H^{--}$ , $e^{+}e^{-}\to H^{+}H^{-}$ and $e^{+}e^{-}\to HA$ under the non-degenerate case. The characteristic signals and relevant SM backgrounds are also discussed both in the positive scenario $(M_{H/A}>M_{H^{\pm}}>M_{H^{\pm\pm}})$ and in the negative scenario $(M_{H/A}<M_{H^{\pm}}<M_{H^{\pm\pm}})$ . Our numerical results show that the enhancement of the production rates due to the cascade decays is moderate in the positive scenario but significant in the negative one. Due to the relatively small SM backgrounds, their possible signals might be detected via these processes at future ILC 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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