Search for invisible dark photon in $$\gamma e$$ γ e scattering at future lepton colliders

Abstract For the first time, the production of a massive dark photon (DP) in the $$\gamma e^-$$ γ e - scattering at the future lepton colliders ILC, CLIC, and CEPC is examined. The invisible decay mode of the DP is addressed. We have studied both the unpolarized scattering and the collision of the C...

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Main Authors: S. C. İnan, A. V. Kisselev
Format: Article
Language:English
Published: SpringerOpen 2022-07-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-022-10552-1
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author S. C. İnan
A. V. Kisselev
author_facet S. C. İnan
A. V. Kisselev
author_sort S. C. İnan
collection DOAJ
description Abstract For the first time, the production of a massive dark photon (DP) in the $$\gamma e^-$$ γ e - scattering at the future lepton colliders ILC, CLIC, and CEPC is examined. The invisible decay mode of the DP is addressed. We have studied both the unpolarized scattering and the collision of the Compton backscattered photons with the polarized electron. The missing energy distributions are shown. We have considered the wide range 1–1000 GeV of the DP mass $$m_{A'}$$ m A ′ . The excluded regions at the 95% CL in the plane $$(\varepsilon , m_{A'})$$ ( ε , m A ′ ) , where $$\varepsilon $$ ε is the kinetic mixing parameter, are obtained. In particular, in the low mass region, 1–10 GeV our bounds for the 90 GeV CEPC are several times stronger than experimental limits obtained by the BaBar collaboration. For the polarized scattering, the excluded bounds for all three colliders are approximately 20% stronger as compared with the unpolarized case.
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spelling doaj.art-f255f89ffbcd49c283ed402506f4848c2022-12-22T01:26:06ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522022-07-0182711010.1140/epjc/s10052-022-10552-1Search for invisible dark photon in $$\gamma e$$ γ e scattering at future lepton collidersS. C. İnan0A. V. Kisselev1Department of Physics, Sivas Cumhuriyet UniversityDivision of Theoretical Physics, A.A. Logunov Institute for High Energy Physics, NRC “Kurchatov Institute”Abstract For the first time, the production of a massive dark photon (DP) in the $$\gamma e^-$$ γ e - scattering at the future lepton colliders ILC, CLIC, and CEPC is examined. The invisible decay mode of the DP is addressed. We have studied both the unpolarized scattering and the collision of the Compton backscattered photons with the polarized electron. The missing energy distributions are shown. We have considered the wide range 1–1000 GeV of the DP mass $$m_{A'}$$ m A ′ . The excluded regions at the 95% CL in the plane $$(\varepsilon , m_{A'})$$ ( ε , m A ′ ) , where $$\varepsilon $$ ε is the kinetic mixing parameter, are obtained. In particular, in the low mass region, 1–10 GeV our bounds for the 90 GeV CEPC are several times stronger than experimental limits obtained by the BaBar collaboration. For the polarized scattering, the excluded bounds for all three colliders are approximately 20% stronger as compared with the unpolarized case.https://doi.org/10.1140/epjc/s10052-022-10552-1
spellingShingle S. C. İnan
A. V. Kisselev
Search for invisible dark photon in $$\gamma e$$ γ e scattering at future lepton colliders
European Physical Journal C: Particles and Fields
title Search for invisible dark photon in $$\gamma e$$ γ e scattering at future lepton colliders
title_full Search for invisible dark photon in $$\gamma e$$ γ e scattering at future lepton colliders
title_fullStr Search for invisible dark photon in $$\gamma e$$ γ e scattering at future lepton colliders
title_full_unstemmed Search for invisible dark photon in $$\gamma e$$ γ e scattering at future lepton colliders
title_short Search for invisible dark photon in $$\gamma e$$ γ e scattering at future lepton colliders
title_sort search for invisible dark photon in gamma e γ e scattering at future lepton colliders
url https://doi.org/10.1140/epjc/s10052-022-10552-1
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AT avkisselev searchforinvisibledarkphotoningammaegescatteringatfutureleptoncolliders