Search for sub-GeV Scalars in $e^+e^-$ collisions

Fuente: arXiv

Saved in:

Bibliographic Details
Main Authors:	Cogollo, D., Oviedo-Torres, Y. M., Queiroz, Farinaldo S., Villamizar, Yoxara, Zamora-Saa, J.
Format:	Preprint
Published:	2024
Subjects:	High Energy Physics - Phenomenology High Energy Physics - Theory
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

_version_	1866918259862798336
author	Cogollo, D. Oviedo-Torres, Y. M. Queiroz, Farinaldo S. Villamizar, Yoxara Zamora-Saa, J.
author_facet	Cogollo, D. Oviedo-Torres, Y. M. Queiroz, Farinaldo S. Villamizar, Yoxara Zamora-Saa, J.
contents	Light scalars that couple to leptons are common figures in beyond the Standard Model endeavors. Considering a scalar that has universal and couplings to leptons only, we compute this leptophilic scalar contribution to the $e^{-}e^{+} \rightarrow τ^{+}τ^{-} S $ production cross section with $S \rightarrow e^{+}e^{-}(μ^{+}μ^{-})$. We later compare the expected signal with recent data from the BELLE collaboration collected near the resonance $Υ(4S)$ with $\mathcal{L}=626 fb^{-1}$ of integrated luminosity to place limits on the couplings-mass plane for the $4$~MeV-$6.5$~GeV mass range. We then extended this analysis to a more general one $e^{-}e^{+} \rightarrow {\ell}^{+}{\ell}^{-} S$ production cross section where $\ell=e,μ,τ$ with $S \rightarrow e^{+}e^{-}(μ^{+}μ^{-})$, showing that BELLE constitutes an excellent laboratory for light scalars, where can be derived constraints stronger than those derived stemming from the g-2 of the electron or muon.
format	Preprint
id	arxiv_https___arxiv_org_abs_2412_19893
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Search for sub-GeV Scalars in $e^+e^-$ collisions Cogollo, D. Oviedo-Torres, Y. M. Queiroz, Farinaldo S. Villamizar, Yoxara Zamora-Saa, J. High Energy Physics - Phenomenology High Energy Physics - Theory Light scalars that couple to leptons are common figures in beyond the Standard Model endeavors. Considering a scalar that has universal and couplings to leptons only, we compute this leptophilic scalar contribution to the $e^{-}e^{+} \rightarrow τ^{+}τ^{-} S $ production cross section with $S \rightarrow e^{+}e^{-}(μ^{+}μ^{-})$. We later compare the expected signal with recent data from the BELLE collaboration collected near the resonance $Υ(4S)$ with $\mathcal{L}=626 fb^{-1}$ of integrated luminosity to place limits on the couplings-mass plane for the $4$~MeV-$6.5$~GeV mass range. We then extended this analysis to a more general one $e^{-}e^{+} \rightarrow {\ell}^{+}{\ell}^{-} S$ production cross section where $\ell=e,μ,τ$ with $S \rightarrow e^{+}e^{-}(μ^{+}μ^{-})$, showing that BELLE constitutes an excellent laboratory for light scalars, where can be derived constraints stronger than those derived stemming from the g-2 of the electron or muon.
title	Search for sub-GeV Scalars in $e^+e^-$ collisions
topic	High Energy Physics - Phenomenology High Energy Physics - Theory
url	https://arxiv.org/abs/2412.19893