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We investigate a possibility of precision measurements for parameters of the Littlest Higgs model with T-parity at the International Linear Collider (ILC). The model predicts new gauge bosons which masses strongly depend on the vacuum…

High Energy Physics - Phenomenology · Physics 2009-07-02 Eri Asakawa , Masaki Asano , Keisuke Fujii , Tomonori Kusano , Shigeki Matsumoto , Rei Sasaki , Yosuke Takubo , Hitoshi Yamamoto

We investigate a possibility to measure parameters of the Littlest Higgs model with T-parity at the ILC with sqrt(s) = 500 GeV. The model predicts new gauge bosons (AH, ZH, and WH), among which the heavy photon (AH) is a candidate for dark…

High Energy Physics - Phenomenology · Physics 2009-02-02 Tomonori Kusano , Eri Asakawa , Masaki Asano , Keisuke Fujii , Shigeki Matsumoto , Rei Sasaki , Yosuke Takubo , Hitoshi Yamamoto

The Littlest Higgs Model with T-parity is one of the attractive candidates of physics beyond the Standard Model. One of the important predictions of the model is the existence of new heavy gauge bosons, where they acquire mass terms through…

High Energy Physics - Phenomenology · Physics 2010-06-18 Yosuke Takubo , Eri Asakawa , Masaki Asano , Keisuke Fujii , Eriko Kato , Shigeki Matsumoto , Hitoshi Yamamoto

In the Littlest Higgs model with T-parity, we study production processes of new gauge bosons at the international linear collider (ILC). Through Monte Carlo simulations of the production processes, we show that the heavy gauge boson masses…

High Energy Physics - Phenomenology · Physics 2022-09-14 Masaki Asano , Eri Asakawa , Keisuke Fujii , Tomonori Kusano , Shigeki Matsumoto , Rei Sasaki , Yosuke Takubo , Hitoshi Yamamoto

The Littlest Higgs Model with T-parity is one of the attractive candidates of physics beyond the Standard Model. One of the important predictions of the model is the existence of new heavy gauge bosons, where they acquire mass terms through…

High Energy Physics - Phenomenology · Physics 2009-07-06 Yosuke Takubo , Eri Asakawa , Masaki Asano , Keisuke Fujii , Tomonori Kusano , Shigeki Matsumoto , Rei Sasaki , Hitoshi Yamamoto

The Littlest Higgs with T-parity Model (LHT) is one of the attractive candidates of physics beyond the Standard Model. In this study we focus on heavy gauge bosons and heavy leptons that LHT imposes, which are detectable at ILC. The mass…

High Energy Physics - Phenomenology · Physics 2012-03-06 Eriko Kato , Masaki Asano , Keisuke Fujii , Shigeki Matsumoto , Yosuke Takubo , Hitoshi Yamamoto

Little Higgs scenario provides us a new solution for the hierarchy problem of the Standard Model. The Littlest Higgs model with T-parity, which is one of models in the scenario, solves the dark matter problem in our universe. In this talk,…

High Energy Physics - Phenomenology · Physics 2009-02-03 Shigeki Matsumoto , Eri Asakawa , Masaki Asano , Keisuke Fujii , Tomonori Kusano , Rei Sasaki , Yosuke Takubo , Hitoshi Yamamoto

In the Littlest Higgs model with T-parity, the heavy photon ($A_{H}$) is supposed to be a possible dark matter (DM) candidate. A direct proof of validity of the model is to produce the heavy photon at accelerator. In this paper, we study…

High Energy Physics - Phenomenology · Physics 2012-10-09 Qing-Peng Qiao , Bin Xu

In the parameter space allowed by the electroweak precision measurement data, we consider the contributions of the new particles predicted by the littlest Higgs($LH$) model to the Higgs boson associated production with top quark pair in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Chong-Xing Yue , Wei Wang , Feng Zhang

Within the context of the Littlest Higgs model with T-parity, the heavy photon ($A_{H}$) is supposed to be an ideal dark matter (DM) candidate. One direct proof of validity of the model is to produce the heavy photon at collider. In this…

High Energy Physics - Phenomenology · Physics 2015-06-03 Qing-Peng Qiao , Bin Xu

The large hadron collider (LHC) is anticipated to provide signals of new physics at the TeV scale, which are likely to involve production of a WIMP dark matter candidate. The international linear collider (ILC) is to sort out these signals…

The signal discovered in the Higgs searches at the LHC can be interpreted as the Higgs boson of the Standard Model as well as the light CP-even Higgs boson of the Minimal Supersymmetric Standard Model (MSSM). In this context the measured…

High Energy Physics - Phenomenology · Physics 2014-04-02 T. Hahn , S. Heinemeyer , W. Hollik , H. Rzehak , G. Weiglein

Precise measurement of the Higgs boson properties are important issues for the International Linear Collider (ILC) project to understand the particles mass generation mechanism which strongly related to the coupling with the Higgs boson.…

High Energy Physics - Experiment · Physics 2012-02-23 Hiroaki Ono , Akiya Miyamoto

With the discovery of a Higgs boson at LHC, all particles of the Standard Model seem to have been observed experimentally, yet many questions are left unanswered. The discovery has intensified the planning for future high-energy colliders,…

High Energy Physics - Experiment · Physics 2016-07-04 Naomi van der Kolk

In view of ongoing measurements of the Higgs-like boson at the LHC and direct searches for dark matter, we explore the possibility of accommodating the potential results in a simple new-physics model with discrete gauge symmetry as well as…

High Energy Physics - Phenomenology · Physics 2015-03-20 Cheng-Wei Chiang , Takaaki Nomura , Jusak Tandean

The precise measurement of the Higgs mass is the most important program at International Linear Collider (ILC). Using e+e- -> ZH process, the mass of Higgs boson can be measured by two lepton tracks from decay of Z boson, even if the Higgs…

High Energy Physics - Phenomenology · Physics 2009-02-19 Kazutoshi Ito

We examine the effects of the extended gauge sector of the Littlest Higgs model in high energy e+e- collisions. We find that the search reach in e+e- -> f fbar at a 500 GeV center-of-mass energy International Linear Collider covers…

High Energy Physics - Phenomenology · Physics 2008-11-26 John A. Conley , JoAnne Hewett , My Phuong Le

The prediction of additional Higgs bosons is one of the key features of physics beyond the Standard Model (SM) that gives rise to an extended Higgs sector. We assess the sensitivity of the Large Hadron Collider (LHC) in the high luminosity…

High Energy Physics - Phenomenology · Physics 2020-10-28 H. Bahl , P. Bechtle , S. Heinemeyer , S. Liebler , T. Stefaniak , G. Weiglein

We investigate the phenomenology of the charged Higgs boson at the International Linear Collider (ILC) within the framework of the type-X Two-Higgs Doublet Model (2HDM), where a light charged Higgs boson, with a mass around 200 GeV or even…

High Energy Physics - Phenomenology · Physics 2025-06-03 Brahim Ait Ouazghour , Abdesslam Arhrib , Kingman Cheung , Es-said Ghourmin , Mohamed Krab , Larbi Rahili

We investigate the need and prospects for measuring dark matter properties at particle collider experiments. We discuss the connections between the inferred properties of particle dark matter and the physics that is expected to be uncovered…

High Energy Physics - Phenomenology · Physics 2009-11-11 Andreas Birkedal
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