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Related papers: Study of the $h\gamma Z$ coupling using $e^+e^-\xr…

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We studied the $e^+e^- \to h \gamma $ process at the International Linear Collider (ILC) at $\sqrt{s}=250$ GeV, based on the full detector simulation of the International Large Detector (ILD). This process is loop-induced in the Standard…

High Energy Physics - Experiment · Physics 2021-05-17 Y. Aoki , K. Fujii , J. Tian

We study the $h \gamma Z$ coupling, which is a loop induced coupling in the Standard Model (SM), to probe new physics. In a global fit based on the SM Effective Field Theory, measurement of the SM $h \gamma Z$ coupling can provide a very…

High Energy Physics - Experiment · Physics 2020-02-19 Yumi Aoki , Keisuke Fujii , Sunghoon Jung , Junghwan Lee , Junping Tian , Hiroshi Yokoya

We studied the $e^+e^- \to h \gamma$ process at the full simulation level, using a realistic detector model to study the feasibility to constrain the SM effective field theory (SMEFT) $h \gamma Z$ coefficient, $\zeta_{AZ}$, at the ILC.…

High Energy Physics - Experiment · Physics 2022-04-01 Y. Aoki , K. Fujii , J. Tian

We revisit the process $e^+e^- \to \gamma Z$ at the ILC with transverse beam polarization in the presence of anomalous CP-violating $\gamma Z Z$ coupling $\lambda_1$ and $\gamma \gamma Z$ coupling $\lambda_2$. We point out that if the…

High Energy Physics - Phenomenology · Physics 2015-03-19 B. Ananthanarayan , Sumit K. Garg , Monalisa Patra , Saurabh D. Rindani

We evaluate the $e^- e^+ \to e^- e^+ +h$ process through the $ZZ$ fusion channel at the International Linear Collider (ILC) operating at $500$ GeV and $1$ TeV center of mass energies. We perform realistic simulations on the signal process…

High Energy Physics - Phenomenology · Physics 2015-06-30 Tao Han , Zhen Liu , Zhuoni Qian , Joshua Sayre

A measurement of Z production cross-section in $\gamma e^{-}$ collision at Large Hadron-electron Collider (LHeC) is presented to compare to that at International Linear Collider (ILC). The total cross-section depends strongly on the…

High Energy Physics - Phenomenology · Physics 2023-01-11 Bui Thi Ha Giang

Higgs boson couplings with gauge bosons are probed through $e^-e^+ \rightarrow Z \gamma h$ in an effective Lagrangian framework. For this study the beam polarization facility at the ILC along with the typical center-of-mass energy of 500…

High Energy Physics - Phenomenology · Physics 2019-03-20 Sher Alam , Subhasish Behera , Satendra Kumar , Shibananda Sahoo

At this time, the design of the International Linear Collider (ILC) is optimized for e+e- collisions; the photon collider (gamma-gamma and gamma-electron) is considered as an option. Unexpected discoveries, such as the diphoton excess F(750…

Accelerator Physics · Physics 2018-04-18 V. I. Telnov

We report on the feasibility of the direct measurement of the top Yukawa coupling g_t at the International Linear Collider (ILC) during its first phase of operation with a center-of-mass energy of 500 GeV. The signal and background models…

High Energy Physics - Phenomenology · Physics 2011-08-11 Ryo Yonamine , Katsumasa Ikematsu , Tomohiko Tanabe , Keisuke Fujii , Yuichiro Kiyo , Yukinari Sumino , Hiroshi Yokoya

This document discusses for the first time the experimental prospects on the measurement of cross section and the forward-backward asymmetry in $e^{-}e^{+}\rightarrow c\bar{c}$ collisions at 250 GeV at the International Linear Collider…

High Energy Physics - Experiment · Physics 2020-02-17 A. Irles , R. Pöeschl , F. Richard

We investigate the anomalous $W^+W^-\gamma$ couplings through the process $e^-e^+\,\rightarrow\,\nu_e\bar{\nu}_e\gamma$ for unpolarized and polarized electron (positron) beams at the International Linear Collider. We give the 95$\%$…

High Energy Physics - Phenomenology · Physics 2021-08-03 S. Spor , M. Köksal

We examine the prospects for measuring the $H Z \gamma$ coupling of a Standard Model-like Higgs boson with a mass between 120 and 160 GeV at the future TESLA linear \ee collider, assuming an integrated luminosity of 1 ab$^{-1}$ and a…

High Energy Physics - Phenomenology · Physics 2011-09-13 M. Dubinin , H. J. Schreiber , A. Vologdin

The anomalous $WW\gamma$ coupling is probed through $e\gamma\rightarrow \nu W$ at the ILC. With a spectacular single lepton final state, this process is well suited to study the above coupling. Cross section measurements can probe $\delta…

High Energy Physics - Phenomenology · Physics 2016-01-20 Satendra Kumar , Poulose Poulose

The International Linear Collider (ILC) will allow the precise study of $e^{-}e^{+}\rightarrow q\bar{q}$ interactions at different center-of-mass energies from the $Z$-pole to 1 TeV. In this paper, we discuss the experimental prospects for…

High Energy Physics - Phenomenology · Physics 2024-06-03 A. Irles , J. P. Márquez , R. Pöschl , F. Richard , A. Saibel , H. Yamamoto , N. Yamatsu

A first measurement of the cross section of the process e+e- -> Z gamma gamma is reported using a total integrated luminosity of 231 pb^-1 collected with the L3 detector at centre-of-mass energies of 182.7 GeV and 188.7 GeV. By selecting…

High Energy Physics - Experiment · Physics 2012-08-27 L3 Collaboration

This paper describes an analysis performed at 250 GeV centre of mass energy for the reaction e+e- -> bbbar with the International Linear Collider, ILC, assuming an integrated luminosity of 500 fb-1. This measurement requires determining the…

High Energy Physics - Experiment · Physics 2017-09-14 S. Bilokin , R. Pöschl , F. Richard

We propose to measure the $HZ\gamma$ and $H\gamma\gamma$ anomalous couplings in the process of $e^{+}e^{-}\rightarrow H\gamma$ with the sequential decay of $H\to b{\bar b}$. The discovery potential of observing the anomalous couplings are…

High Energy Physics - Phenomenology · Physics 2015-12-09 Qing-Hong Cao , Hao-Ran Wang , Ya Zhang

We examine how accurately the general HZV couplings, with V=Z,gamma, may be determined by studying e^+e^- --> Hff-bar processes at future e^+e^- linear colliders. By using the optimal-observable method, which makes use of all available…

High Energy Physics - Phenomenology · Physics 2016-09-06 K. Hagiwara , S. Ishihara , J. Kamoshita , B. A. Kniehl

The process e^+e^- -> gamma gamma (gamma) is studied using data recorded with the OPAL detector at LEP. The data sample corresponds to a total integrated luminosity of 25.38 pb^{-1} taken at centre-of-mass energies of 130-172 GeV. The…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL Collaboration , K. Ackerstaff et al

We study the prospects of measurement of the branching ratio of $h \to \mu ^+ \mu ^-$ at the International Linear Collider (ILC). The study is performed at center-of-mass energies of 250 GeV and 500 GeV, using fully-simulated MC samples…

High Energy Physics - Experiment · Physics 2018-01-26 Shin-ichi Kawada , Jenny List , Mikael Berggren
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