8 |
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corresponding to an integrated luminosity of \lumi. |
9 |
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10 |
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The production of Z bosons is expected in many BSM scenarios, for example supersymmetric (SUSY) |
11 |
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models. For example, Z bosons may be produced in the decays $\chi^0_2\to Z \chi^0_1$ |
12 |
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$\chi^0_1\to Z \tilde{G}$, where $\chi^0_2$ is the second lightest neutralino, $\chi^0_1$ is |
13 |
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the lightest neutralino, and $\tilde{G}$ is the gravitino. Such decays may occur in the cascade |
11 |
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models. In SUSY models with neutralino lightest SUSY particle (LSP), Z bosons may be produced in the decays $\chi^0_2\to Z \chi^0_1$, |
12 |
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where $\chi^0_2$ is the second lightest neutralino and $\chi^0_1$ is |
13 |
> |
the lightest neutralino. |
14 |
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In models with gravitino LSP such as gauge-mediated SUSY breaking (GMSB) models, Z bosons may be produced via |
15 |
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$\chi^0_1\to Z \tilde{G}$, where $\tilde{G}$ is the gravitino. Such decays may occur either in the cascade |
16 |
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decays of the strongly-produced squarks and gluinos, or via direct production of the electroweak |
17 |
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charginos and neutralino. Examples of such processes (see Fig.~\ref{fig:diagrams}) are: |
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