Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-02-02
Phys.Rev.D83:091501,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, 8 figures, discussions and references added, accepted for publication in Physical Review D (Rapid Communications)
Scientific paper
10.1103/PhysRevD.83.091501
The measurement of forward-backward asymmetry in the top and anti-top quark ($t \bar{t}$) production has been recently reconfirmed by the CDF Collaboration and shows a more than $3\sigma$ deviation from the Standard Model(SM) prediction in the large $t \bar{t}$ invariant mass region. Models with new W$^{\prime}$ or Z$^{\prime}$ bosons have been invoked to explain this deviation. In the context of these models we perform a $\chi^2$ analysis with all the available experimental numbers in different $\Delta Y$ and $M_{t \bar{t}}$ bins. We show that for the $Z^{\prime}$ model the region of parameter space which explain the Tevatron asymmetry can be probed in the same sign top production channel by Tevatron itself. Moreover, we consider a recently proposed observable, the one sided forward-backward asymmetry ($A_{OFB}$) at the LHC and conclude that both the W$^{\prime}$ and Z$^{\prime}$ models can lead to sizable $A_{OFB}$ even at the LHC running at a center of mass energy of 7 TeV for the model parameters consistent with the Tevatron measurements.
Bhattacherjee Biplob
Biswal Sudhansu S.
Ghosh Diptimoy
No associations
LandOfFree
Top quark forward-backward asymmetry at Tevatron and its implications at the LHC does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Top quark forward-backward asymmetry at Tevatron and its implications at the LHC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Top quark forward-backward asymmetry at Tevatron and its implications at the LHC will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-426673