Aaltonen, T;
Adelman, J;
Akimoto, T;
Albrow, MG;
Gonzalez, BA;
Amerio, S;
Amidei, D;
... CDF Collaboration; + view all
(2009)
Search for Maximal Flavor Violating Scalars in Same-Charge Lepton Pairs in p(p)over-bar Collisions at root s=1.96 TeV.
PHYS REV LETT
, 102
(4)
, Article 041801. 10.1103/PhysRevLett.102.041801.
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Abstract
Models of maximal flavor violation (MxFV) in elementary particle physics may contain at least one new scalar SU(2) doublet field phi(FV) = (eta(0),eta(+)) that couples the first and third generation quarks (q(1), q(3)) via a Lagrangian term L-FV = xi(13)phi(FV)q(1)q(3). These models have a distinctive signature of same-charge top-quark pairs and evade flavor-changing limits from meson mixing measurements. Data corresponding to 2 fb(-1) collected by the Collider Dectector at Fermilab II detector in p (p) over bar collisions at root s = 1.96 TeV are analyzed for evidence of the MxFV signature. For a neutral scalar eta(0) with m(eta 0) = 200 GeV/c(2) and coupling xi(13) = 1, similar to 11 signal events are expected over a background of 2.1 +/- 1.8 events. Three events are observed in the data, consistent with background expectations, and limits are set on the coupling xi(13) for m(eta 0) = 180-300 GeV/c(2).
| Type: | Article |
|---|---|
| Title: | Search for Maximal Flavor Violating Scalars in Same-Charge Lepton Pairs in p(p)over-bar Collisions at root s=1.96 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.102.041801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.102.041801 |
| Language: | English |
| Additional information: | © 2009 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/342919 |
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