Probing relatively heavier right-handed selectron at the CEPC, FCC and ILC

Waqas Ahmed (School of Mathematics and Physics, Hubei Polytechnic University, Huangshi, China) ; Imtiaz Khan (CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China) ; Tianjun Li (CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China) ; Shabbar Raza (Department of Physics, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan) ; Wenxing Zhang (Tsung-Dao Lee Institute, School of Physics and Astronomy, Shanghai Jiao Tong University, Minhang, China)

We employ the low energy Minimal Supersymmetric Standard Model (MSSM) to explore the parameter space associated with Z-pole and Higgs-pole solutions. Such parameter spaces can not only saturate the cold dark matter relic density bound within 5σ set by the Planck 2018, but also satisfy the other standard collider mass bounds and B-physics bounds. In particular, we show that the right-handed selectron can be light. Thus, we propose a search for the relatively heavier right-handed selectron at the future lepton colliders with the center-of-mass energy s=240 GeV and integrated luminosity 3000 fb1 via the mono-photon channel: eR+eRχ˜10(bino)+χ˜10(bino)+γ. We show that for the Z-pole case the right-handed selectron will be excluded up to 180 GeV and 210 GeV respectively at 3σ and 2σ, while the right-handed selectron will be excluded up to 140 GeV and 180 GeV respectively at 3σ and 2σ in case of Higgs-pole.

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      "value": "We employ the low energy Minimal Supersymmetric Standard Model (MSSM) to explore the parameter space associated with Z-pole and Higgs-pole solutions. Such parameter spaces can not only saturate the cold dark matter relic density bound within 5\u03c3 set by the Planck 2018, but also satisfy the other standard collider mass bounds and B-physics bounds. In particular, we show that the right-handed selectron can be light. Thus, we propose a search for the relatively heavier right-handed selectron at the future lepton colliders with the center-of-mass energy <math><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>240</mn></math> GeV and integrated luminosity 3000 <math><mi>f</mi><msup><mrow><mi>b</mi></mrow><mrow><mo>\u2212</mo><mn>1</mn></mrow></msup></math> via the mono-photon channel: <math><msubsup><mrow><mi>e</mi></mrow><mrow><mi>R</mi></mrow><mrow><mo>+</mo></mrow></msubsup><msubsup><mrow><mi>e</mi></mrow><mrow><mi>R</mi></mrow><mrow><mo>\u2212</mo></mrow></msubsup><mo>\u2192</mo><msubsup><mrow><mover><mrow><mi>\u03c7</mi></mrow><mrow><mo>\u02dc</mo></mrow></mover></mrow><mrow><mn>1</mn></mrow><mrow><mn>0</mn></mrow></msubsup><mo>(</mo><mi>b</mi><mi>i</mi><mi>n</mi><mi>o</mi><mo>)</mo><mo>+</mo><msubsup><mrow><mover><mrow><mi>\u03c7</mi></mrow><mrow><mo>\u02dc</mo></mrow></mover></mrow><mrow><mn>1</mn></mrow><mrow><mn>0</mn></mrow></msubsup><mo>(</mo><mi>b</mi><mi>i</mi><mi>n</mi><mi>o</mi><mo>)</mo><mo>+</mo><mi>\u03b3</mi></math>. We show that for the Z-pole case the right-handed selectron will be excluded up to 180 GeV and 210 GeV respectively at 3\u03c3 and 2\u03c3, while the right-handed selectron will be excluded up to 140 GeV and 180 GeV respectively at 3\u03c3 and 2\u03c3 in case of Higgs-pole."
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Published on:
01 June 2022
Publisher:
Elsevier
Published in:
Physics Letters B , Volume 832 C (2022)

Article ID: 137216
DOI:
https://doi.org/10.1016/j.physletb.2022.137216
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

Fulltext files: