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- W3204286642 abstract "We investigate the production of CP-odd Higgs boson A^0 <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msup><mml:mi>A</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> associated with a real gamma <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>γ</mml:mi></mml:math> in e^+e^- <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mi>e</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>e</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:mrow></mml:math> collisions. Because of the properties of A^0 <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msup><mml:mi>A</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> coupling to the other fields, the main contribution comes from the top-quark triangle loop diagrams. We obtain the “timelike” transition form factor which describes the production amplitude of A^0 <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msup><mml:mi>A</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> in the e^+e^- <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mi>e</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>e</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:mrow></mml:math> collisions. This timelike transition form factor is related to the spacelike transition form factor relevant for the A^0 <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msup><mml:mi>A</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math> production in e^-gamma <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msup><mml:mi>e</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:mi>γ</mml:mi></mml:mrow></mml:math> collisions. It turns out that the possible extra contributions from chargino-sneutrino and neutralino-selectron box diagrams do not give sizable effects." @default.
- W3204286642 created "2021-10-11" @default.
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- W3204286642 date "2022-06-22" @default.
- W3204286642 modified "2023-10-04" @default.
- W3204286642 title "Timelike transition form factor for CP-odd Higgs boson production" @default.
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- W3204286642 doi "https://doi.org/10.21468/scipostphysproc.7.044" @default.
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