A simulated search for the singlet vector-like bottom quark decaying into tW at high energy pp colliders

Jinzhong Han; Liangliang Shang; Bingfang Yang

doi:10.1140/epjc/s10052-023-12010-y

2024 Impact factor 4.8

Particles and Fields

Open Access

Eur. Phys. J. C (2023) 83: 846
https://doi.org/10.1140/epjc/s10052-023-12010-y

Regular Article - Theoretical Physics

A simulated search for the singlet vector-like bottom quark decaying into tW at high energy pp colliders

Jinzhong Han¹^a, Liangliang Shang² and Bingfang Yang²

¹ School of Physics and Telecommunications Engineering, Zhoukou Normal University, 466001, Zhoukou, China
² School of Physics, Henan Normal University, 453007, Xinxiang, China

^a hanjinzhong@zknu.edu.cn

Received: 6 June 2023
Accepted: 5 September 2023
Published online: 22 September 2023

Abstract

In a framework of simplified model, we perform a simulated search for the singlet vector-like bottom quark B decaying into tW with t hadronic decay and W leptonic decay at the 14 TeV high-luminosity LHC (HL-LHC), 27 TeV high energy LHC (HE-LHC) and 100 TeV Future Circular Hadron Collider (FCC-hh). In this work, we focus on the case that the B only couples with the third generation quarks of the Standard Model. We make a detailed detector simulations of the signal and backgrounds and obtain the $2 σ$ $2\sigma$ exclusion limit and $5 σ$ $5\sigma$ discovery prospects. Our results show that the upcoming HL-LHC can exclude (discover) the $m_{B}$ $$m_B$$ to 2100 (1900) GeV for a typical coupling strength $g^{*} = 0.2$ $g^{*}=0.2$ . For the HE-LHC (FCC-hh), this exclusion capability on the B quark mass can be expanded to more than 3000 (5000) GeV.

© The Author(s) 2023

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