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QCD corrections to the $gammagamma bar b$ production at the ILC | | Guo Lei
; Zhang Ren-You
; Ma Wen-Gan
; Han Liang
; | | Date: |
1 Feb 2012 | | Abstract: | The $e^+e^- o gammagamma bar b$ is an irreducible background process in
measuring the $H^0 o gammagamma$ decay width, if Higgs boson is produced in
association with a $Z^0$-boson which subsequently decays via $Z^0 o bar b$
at the ILC. In this paper we study the impact of the ${cal O}(alpha_s)$ QCD
corrections to the observables of the $e^+e^- o gammagamma bar b$ process
in the standard model. We investigate the dependence of the leading-order and
${cal O}(alpha_s)$ QCD corrected cross sections on colliding energy and the
additional jet veto schemes. We also present the results of the LO and ${cal
O}(alpha_s)$ QCD corrected distributions of the transverse momenta of final
particles, and the invariant masses of $bar b$- and $gammagamma$-pair. | | Source: | arXiv, 1202.0080 | | Services: | Forum | Review | PDF | Favorites | |
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