1 Ocak 2019 Dergi makalesi Açık Erişim

Delepine, David; Faisel, Gaber; Ramirez, Carlos

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  <dc:creator>Delepine, David</dc:creator>
  <dc:creator>Faisel, Gaber</dc:creator>
  <dc:creator>Ramirez, Carlos</dc:creator>
  <dc:date>2019-01-01</dc:date>
  <dc:description>Violation of charge conjugation-parity (  $CP$ ) symmetry plays a major rule in the dominance of matter in our universe. A kind of   $CP$  violation results from the asymmetry of the life time measured in   ${M}^{0}$  and   ${\overline{M}}^{0}$ , here M is a heavy meson, decays to final states which is referred in the literature as   ${A}_{\Gamma }^{f}$ . In this paper, we give an estimation of the upper bound on   $|{A}_{\Gamma }^{f}|$  for the Cabibbo Favored   ${D}^{0}\to {K}^{-}{\pi }^{+}$  decay process in different models. We show that in the standard model,   $|{A}_{\Gamma }^{f}|\lesssim O\left({10}^{-10}\right)$ . Recently a bound on   ${A}_{\Gamma }^{f}$  has been obtained:   ${\left({A}_{\Gamma }^{f}\right)}^{Exp.}=\left(1.6±1\right)×{10}^{-4}$ . This result motivates further studies on   ${A}_{\Gamma }^{f}$  in beyond standard model physics. In the framework of two Higgs doublet model with generic Yukawa structure, we show that   $|{A}_{\Gamma }^{f}|\lesssim O\left({10}^{-7}\right)$  which is several orders of magnitude smaller than the current experimental value. Finally, in the framework of left-right symmetric models in which the mixing between the left and the right gauge bosons is allowed and the left-right symmetry is not manifest at unification scale, we find that   ${A}_{\Gamma }^{f}$  can be as large as   $|{A}_{\Gamma }^{f}|\lesssim O\left({10}^{-5}\right)$  which is one order of magnitude smaller than the experimentally measured value by LHCb collaborators.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/105765</dc:identifier>
  <dc:identifier>oai:zenodo.org:105765</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>European Physical Journal C 79(7)</dc:source>
  <dc:title>New physics signature in   ${D}^{0}\left({\overline{D}}^{0}\right)\to f$  effective width asymmetries</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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