Constraints on unparticle physics from the $gt\bar t$ anomalous coupling

Details Constraints on unparticle physics from the $gt\bar t$ anomalous coupling Constraints on unparticle physics from the $gt\bar t$ anomalous coupling

2008-05-03

arxiv.org/abs/0805.0371v1

Int.J.Mod.Phys.A25:1061-1067,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 4 figures

Scientific paper

10.1142/S0217751X10048159

We study the impact of unparticle physics to the chromomagnetic dipole moment (CMDM) of the top quark. We compute the effect induced by unparticle operators of scalar and vector nature coupled to fermions on the CMDM. We find that this dipole moment is sensitive to the scale dimensions $d_u$ of the unparticle and the new couplings of the respective effective operators. Using the bounds imposed on the CMDM by low-energy precision and Tevatron measurements we derive indirect limits on the unparticle parameter space. In particular, we find that the scalar-unparticle operator contribution fulfills both constraints for most of the unparticle parameter space, while the low-energy precision bound on the CMDM excludes a vector-unparticle contribution for low values of respective scale dimension $d_u$.

Affiliated with

Also associated with

No associations

Rating

Constraints on unparticle physics from the $gt\bar t$ anomalous coupling 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 Constraints on unparticle physics from the $gt\bar t$ anomalous coupling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on unparticle physics from the $gt\bar t$ anomalous coupling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-512731