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Related papers: ILC Higgs White Paper

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We evaluate the measurement precision of the production cross section times the branching ratio of the Higgs boson decaying into tau lepton pairs at the International Linear Collider (ILC). We analyze various final states associated with…

High Energy Physics - Experiment · Physics 2016-01-27 Shin-ichi Kawada , Keisuke Fujii , Taikan Suehara , Tohru Takahashi , Tomohiko Tanabe

A Higgs factory like the International Linear Collider (ILC) can play a significant role in searching for exotic decays of Higgs bosons. As an illustration, we investigate the ILC sensitivity for the decay topology $h\to a_1 a_1 \to…

High Energy Physics - Phenomenology · Physics 2013-09-03 Tao Liu , C. T. Potter

The talk summarises the case for Higgs physics in $e^+e^-$ collisions and explains how Higgs parameters can be extracted in a model-independent way at the International Linear Collider (ILC). The expected precision will be discussed in the…

High Energy Physics - Experiment · Physics 2014-10-14 Felix Sefkow

We explore the room for possible deviations from the Standard Model (SM) Higgs boson coupling structure in a systematic study of Higgs coupling scale factor benchmark scenarios using the latest signal rate measurements from the Tevatron and…

High Energy Physics - Phenomenology · Physics 2014-11-21 Philip Bechtle , Sven Heinemeyer , Oscar Stål , Tim Stefaniak , Georg Weiglein

We study direct searches of additional Higgs bosons in multi-top-quarks events at the LHC with the collision energy of 14 TeV as well as the International Linear Collider (ILC) with the collision energy of 1 TeV. As a benchmark model, we…

High Energy Physics - Phenomenology · Physics 2015-05-20 Hiroshi Yokoya

Higgs decay branching ratios at future Higgs factories can be measured by directly exploiting class numeration. Given the clean environment at a lepton collider, it is possible to build an event sample highly enriched in Higgs bosons and…

High Energy Physics - Experiment · Physics 2021-05-13 Jonas Kunath , Fabricio Jimenez Morales , Jean-Claude Brient , Vincent Boudry

The International Linear Collider (ILC) is a proposed electron -- positron collider with a collision energy of $\sqrt{s}$ = 500 GeV in the baseline configuration. The ILC physics program takes full advantage of the fact that the machine can…

High Energy Physics - Experiment · Physics 2015-11-23 Jan Strube

Measurement of the Higgs coupling to W-bosons is an important test of our understanding of the electroweak symmetry breaking mechanism. We study the sensitivity of the International Linear Collider (ILC) to the presence of anomalous HW+W-…

High Energy Physics - Phenomenology · Physics 2015-03-17 Yosuke Takubo , Robert N. Hodgkinson , Katsumasa Ikematsu , Keisuke Fujii , Nobuchika Okada , Hitoshi Yamamoto

We present a study of the Higgs boson decay branching ratios to $b\bar{b}$, $c\bar{c}$ and gluons, one of the cornerstones of the physics program at the International Linear Collider (ILC). A standard model Higgs boson of 120\,GeV mass,…

High Energy Physics - Phenomenology · Physics 2014-11-21 Yambazi Banda , Tomas Lastovicka , Andrei Nomerotski

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

Since the TESLA Technical Design Report (TDR) was published in 2001, the physics programme of an electron-positron linear collider (LC) has been further developed and a wide consensus has been reached on the physics case and the need for a…

High Energy Physics - Phenomenology · Physics 2009-11-07 Andre Sopczak

Deviations from the standard Higgs sector generated by some new physics at an energy scale $\Lambda$ could be described by an effective $SU(3)_c \times SU(2)_L \times U(1)$ invariant non-renormalizable Lagrangian terms of dimension six. A…

High Energy Physics - Phenomenology · Physics 2014-03-13 E. Boos , V. Bunichev , M. Dubinin , Y. Kurihara

One of the main purposes on physics at the International Linear Collider (ILC) is to study the property of dark matter such as its mass, spin, and interactions between the dark matter and particles in the standard model. Among those, the…

High Energy Physics - Phenomenology · Physics 2010-06-29 Shigeki Matsumoto , Keisuke Fujii , Takahiro Honda , Shinya Kanemura , Takehiro Nabeshima , Nobuchika Okada , Yosuke Takubo , Hitoshi Yamamoto

International Linear Collider (ILC) is an electron-positron collider with the initial center-of-mass energy of 500 GeV which is upgradable to about 1 TeV later on. Its goal is to study the physics at TeV scale with unprecedented high…

High Energy Physics - Phenomenology · Physics 2008-11-26 Hitoshi Yamamoto

The International Linear Collider is now proposed with a staged machine design, with the first stage at 250 GeV with a luminosity goal of 2 ab-1. In this paper, we review the physics expectations for this machine. These include precision…

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

This paper presents a full simulation study of the measurement of the production cross section ($\sigma_{\mathrm{ZH}}$) of the Higgsstrahlung process $\mathrm{e^{+}e^{-}\rightarrow ZH}$ and the Higgs boson mass ($M_{\mathrm{H}}$) at the…

High Energy Physics - Experiment · Physics 2021-04-29 Jacqueline Yan , Shun Watanuki , Keisuke Fujii , Akimasa Ishikawa , Daniel Jeans , Jan Strube , Junping Tian , Hitoshi Yamamoto

The International Linear Collider has a rich physics programme, whatever lies beyond the standard model. Accurate measurement of the top quark mass is needed to constrain the model or its extensions. If there is a light Higgs boson the LHC…

High Energy Physics - Phenomenology · Physics 2009-11-10 David J. Miller

The prospects for measuring the branching fraction of $H \to \mu ^+ \mu ^-$ at the International Linear Collider (ILC) have been evaluated based on a full detector simulation of the International Large Detector (ILD) concept, considering…

High Energy Physics - Experiment · Physics 2021-02-03 Shin-ichi Kawada , Jenny List , Mikael Berggren

We study direct searches of additional Higgs bosons in multi-top-quarks events at the LHC Run-II, its luminosity upgraded version with 3000 fb$^{-1}$, and the International Linear Collider (ILC) with the collision energy of 1 TeV.…

High Energy Physics - Phenomenology · Physics 2015-12-09 Shinya Kanemura , Hiroshi Yokoya , Ya-Juan Zheng