Phys. Rev. Lett. 100, 031801 (2008) [4 pages]
Top-Quark Pairs at High Invariant Mass: A Model-Independent Discriminator of New Physics at the Large Hadron Collider
Abstract
References (20)
Citing Articles
Received 7 December 2006; published 22 January 2008
We study top-quark pair production to probe new physics at the CERN Large Hadron Collider. We propose reconstruction methods for t![[overline t]](http://scitation.aip.org/servlet/GetImg?key=PRLTAO000100000003031801000001%3A0%3A0%3A28&t=a&d=a) semileptonic events and use them to reconstruct the t invariant mass. The angular distribution of top quarks in their c.m. frame can determine the spin and production subprocess for each new physics resonance. Forward-backward asymmetry and CP-odd variables can be constructed to further delineate the nature of new physics. We parametrize the new resonances with a few generic parameters and show high invariant mass top pair production may provide an early indicator for new physics beyond the standard model.
©2008 The American Physical Society
| URL: |
http://link.aps.org/doi/10.1103/PhysRevLett.100.031801
|
| DOI: |
10.1103/PhysRevLett.100.031801 |
| PACS: |
12.60.-i;
14.65.Ha
|
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