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Article overview
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New Physics signals from measurable polarization asymmetries at LHC | | M. Beccaria
; G. Macorini
; G. Panizz
; C. Verzegnassi
; | | Date: |
20 Aug 2013 | | Abstract: | We propose a new type of Z polarization asymmetry in bottom-Z production at
LHC that should be realistically measurable and would provide the determination
of the so-called $A_b$ parameter, whose available measured value still appears
to be in disagreement with the Standard Model prediction. This polarization can
be measured independently of a possible existence of Supersymmetry. If
Supersymmetry is found, a second polarization, i.e. the top longitudinal
polarization in top-charged Higgs production, would neatly identify the $ an
eta$ parameter. In this case, the value of $A_b$ should be in agreement with
the Standard Model. If Supersymmetry does not exist, a residual disagreement of
$A_b$ from the Standard Model prediction would be a clean signal of New Physics
of "non Supersymmetric" origin. | | Source: | arXiv, 1308.4331 | | Services: | Forum | Review | PDF | Favorites | |
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