Searching for new physics with triple-top signal at the LHC

Chuan Ren Chen

doi:10.1016/j.physletb.2014.07.041

Searching for new physics with triple-top signal at the LHC

Chuan Ren Chen^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	321-324
Number of pages	4
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	736
DOIs	https://doi.org/10.1016/j.physletb.2014.07.041
Publication status	Published - 2014 Sept 7

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2014.07.041

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title = "Searching for new physics with triple-top signal at the LHC",

abstract = "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.",

author = "Chen, \{Chuan Ren\}",

note = "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 .",

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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

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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.

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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 -

Searching for new physics with triple-top signal at the LHC

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