TY - JOUR
T1 - Searching for new physics with triple-top signal at the LHC
AU - Chen, Chuan Ren
N1 - Funding Information:
The work of C.-R.C. is supported in part by the National Science Council Taiwan under Grant No. NSC 102-2112-M-003-001-MY3 . The author also acknowledges support from the National Center for Theoretical Sciences .
PY - 2014/9/7
Y1 - 2014/9/7
N2 - We study the triple-top quark production predicted by the effective operators at the Large Hadron Collider (LHC) with 14 TeV center-of-mass energy. We calculate the production cross section and find that the ratio of signal to Standard Model background can be large. Observation of triple-top signal would give evidence of signature of new physics. We also show that top quarks can be reconstructed using on-shell conditions and M T2 observable in the case that the anti-top quark decays hadronically and two top quarks decay semileptonically. Using the polarization of top quark, we demonstrate that the effective operators that predict different chirality combinations of top quarks in the final state can be distinguished.
AB - We study the triple-top quark production predicted by the effective operators at the Large Hadron Collider (LHC) with 14 TeV center-of-mass energy. We calculate the production cross section and find that the ratio of signal to Standard Model background can be large. Observation of triple-top signal would give evidence of signature of new physics. We also show that top quarks can be reconstructed using on-shell conditions and M T2 observable in the case that the anti-top quark decays hadronically and two top quarks decay semileptonically. Using the polarization of top quark, we demonstrate that the effective operators that predict different chirality combinations of top quarks in the final state can be distinguished.
UR - http://www.scopus.com/inward/record.url?scp=84905374710&partnerID=8YFLogxK
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U2 - 10.1016/j.physletb.2014.07.041
DO - 10.1016/j.physletb.2014.07.041
M3 - Article
AN - SCOPUS:84905374710
SN - 0370-2693
VL - 736
SP - 321
EP - 324
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -