Forward-backward asymmetry of top quark in unparticle physics

Chuan Hung Chen; G. Cvetič; C. S. Kim

doi:10.1016/j.physletb.2010.10.030

Forward-backward asymmetry of top quark in unparticle physics

Chuan Hung Chen, G. Cvetič, C. S. Kim

Department of Physics

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

55 Citations (Scopus)

Abstract

The updated CDF measurement of the forward-backward asymmetry AFB in the top quark production pp-→tt- at Tevatron (with s=1.96 TeV) shows a deviation of 2 σ from the value predicted by the Standard QCD Model. We present calculation of this quantity in the scenario, where colored unparticle physics contributes to the s-channel of the process, and obtain the regions in the plane of the unparticle parameters λ and d_U, which give the values of the A_FB and of the total tt- production cross section compatible with the present measurements.

Original language	English
Pages (from-to)	393-397
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	694
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2010.10.030
Publication status	Published - 2011 Jan 3

Bibliographical note

Funding Information:
C.H.C. was supported in part by the National Science Council of R.O.C. under Grant No. NSC-97-2112-M-006-001-MY3 . G.C. was supported in part by FONDECYT (Chile) Grant No. 1095196 and Rings Project (Chile) ACT119 . The work of C.S.K. was supported in part by the Basic Science Research Program through the NRF of Korea funded by MOEST ( 2009-0088395 ), in part by KOSEF through the Joint Research Program ( F01-2009-000-10031-0 ).

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2010.10.030

Cite this

@article{f43051dc0f864d669ce9a67be191fcbf,

title = "Forward-backward asymmetry of top quark in unparticle physics",

abstract = "The updated CDF measurement of the forward-backward asymmetry AFB in the top quark production pp-→tt- at Tevatron (with s=1.96 TeV) shows a deviation of 2 σ from the value predicted by the Standard QCD Model. We present calculation of this quantity in the scenario, where colored unparticle physics contributes to the s-channel of the process, and obtain the regions in the plane of the unparticle parameters λ and dU, which give the values of the AFB and of the total tt- production cross section compatible with the present measurements.",

author = "Chen, {Chuan Hung} and G. Cveti{\v c} and Kim, {C. S.}",

note = "Funding Information: C.H.C. was supported in part by the National Science Council of R.O.C. under Grant No. NSC-97-2112-M-006-001-MY3 . G.C. was supported in part by FONDECYT (Chile) Grant No. 1095196 and Rings Project (Chile) ACT119 . The work of C.S.K. was supported in part by the Basic Science Research Program through the NRF of Korea funded by MOEST ( 2009-0088395 ), in part by KOSEF through the Joint Research Program ( F01-2009-000-10031-0 ).",

year = "2011",

month = jan,

day = "3",

doi = "10.1016/j.physletb.2010.10.030",

language = "English",

volume = "694",

pages = "393--397",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "4-5",

}

TY - JOUR

T1 - Forward-backward asymmetry of top quark in unparticle physics

AU - Chen, Chuan Hung

AU - Cvetič, G.

AU - Kim, C. S.

N1 - Funding Information: C.H.C. was supported in part by the National Science Council of R.O.C. under Grant No. NSC-97-2112-M-006-001-MY3 . G.C. was supported in part by FONDECYT (Chile) Grant No. 1095196 and Rings Project (Chile) ACT119 . The work of C.S.K. was supported in part by the Basic Science Research Program through the NRF of Korea funded by MOEST ( 2009-0088395 ), in part by KOSEF through the Joint Research Program ( F01-2009-000-10031-0 ).

PY - 2011/1/3

Y1 - 2011/1/3

N2 - The updated CDF measurement of the forward-backward asymmetry AFB in the top quark production pp-→tt- at Tevatron (with s=1.96 TeV) shows a deviation of 2 σ from the value predicted by the Standard QCD Model. We present calculation of this quantity in the scenario, where colored unparticle physics contributes to the s-channel of the process, and obtain the regions in the plane of the unparticle parameters λ and dU, which give the values of the AFB and of the total tt- production cross section compatible with the present measurements.

AB - The updated CDF measurement of the forward-backward asymmetry AFB in the top quark production pp-→tt- at Tevatron (with s=1.96 TeV) shows a deviation of 2 σ from the value predicted by the Standard QCD Model. We present calculation of this quantity in the scenario, where colored unparticle physics contributes to the s-channel of the process, and obtain the regions in the plane of the unparticle parameters λ and dU, which give the values of the AFB and of the total tt- production cross section compatible with the present measurements.

UR - http://www.scopus.com/inward/record.url?scp=78650304913&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78650304913&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2010.10.030

DO - 10.1016/j.physletb.2010.10.030

M3 - Article

AN - SCOPUS:78650304913

SN - 0370-2693

VL - 694

SP - 393

EP - 397

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4-5

ER -

Forward-backward asymmetry of top quark in unparticle physics

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this