Collider Signals of Maximal Flavor Violation: Same-Sign Leptons from Same-Sign Tops at the Tevatron - INSPIRE

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Collider Signals of Maximal Flavor Violation: Same-Sign Leptons from Same-Sign Tops at the Tevatron

Shaouly Bar-Shalom
(
- Technion and
- UC, Irvine
)
,
Arvind Rajaraman
(
- UC, Irvine
)
,
Daniel Whiteson
(
- UC, Irvine
)
,
Felix Yu
(
- UC, Irvine
)

Mar, 2008

4 pages

Published in:

Phys.Rev.D 78 (2008) 033003

e-Print:

0803.3795 [hep-ph]

DOI:

10.1103/PhysRevD.78.033003

Report number:

UCI-TR-2008-13

View in:

ADS Abstract Service

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Abstract: (arXiv)

In models of maximal flavor violation (MxFV) there is at least one new scalar

\Phi_{FV}

which couples to the quarks via

\Phi_{FV} q_i q_j \propto \xi_{ij}

where

\xi_{i3},\xi_{3i} \sim V_{tb}

for

i = 1,2

and

\xi_{33} \sim V_{td}

and

V

is the CKM matrix. In this article, we explore the potential phenomenological implications of MxFV for collider experiments. We study MxFV signals of same-sign leptons from same-sign top-quark pair production at the Tevatron and at the LHC. We show that the current Tevatron dataset has strong sensitivity to this signature, for which there are no current limits. For example, if

m_{\Phi_{FV}} \sim 200

GeV and the MxFV coupling

\xi

has a natural value of

\sim 1

, we expect

\sim 12

MxFV events to survive a selection requiring a pair of same-sign leptons, a tagged

b

-jet and missing transverse energy, over a background of approximately 4-5 events.

12.15.Ji
12.15.Ff
12.60.Fr
11.30.Hv
anti-p p: inclusive reaction
new interaction
flavor: violation
effective Lagrangian
quark: pair production
top

References(10)

Figures(0)

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