Search for anomalous kinematics in $t\bar{t}$ dilepton events at {CDF} II

We report on a search for anomalous kinematics of ttbar dilepton events in ppbar collisions at sqrt{s}=1.96 TeV using 193 {pb}^{-1} of data collected with the CDF II detector. We developed a new a priori technique designed to isolate the subset in a data sample revealing the largest deviation from standard model (SM) expectations and to quantify the significance of this departure. In the four-variable space considered, no particular subset shows a significant discrepancy and we find that the probability of obtaining a data sample less consistent with the SM than what is observed is 1.0-4.5%.

Note:

14 pages, 2 figures Report-no: FERMILAB-PUB-04-396-E Journal-ref: Phys.Rev.Lett. 95, 022001, 2005

14.80.Ly
14.65.Ha
13.85.Qk
quark decay
proton-proton inclusive interactions
standard model
anti-p p: colliding beams
anti-p p: inclusive reaction
top: pair production
top: decay

References(9)

Figures(0)

Measurement of the top quark mass and $t\bar{t}$ production cross section from dilepton events at the Collider Detector at Fermilab

CDF

Collaboration

•

F. Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 80 (1998) 2779-2784
•
e-Print:
- hep-ex/9802017
•
DOI:
- 10.1103/PhysRevLett.80.2779

Measurement of the top quark pair production cross section in $p\bar{p}$ collisions

D0

Collaboration

•

S. Abachi
(
- Fermilab
)

et al.

- Phys.Rev.Lett. 79 (1997) 1203-1208
•
e-Print:
- hep-ex/9704015
•
DOI:
- 10.1103/PhysRevLett.79.1203

A Multi - lepton signal for supersymmetric particles in Tevatron data?

R.Michael Barnett
(
- LBL, Berkeley
)
,
Lawrence J. Hall
(
- UC, Berkeley
)

- Phys.Rev.Lett. 77 (1996) 3506-3509
•
e-Print:
- hep-ph/9607342
•
DOI:
- 10.1103/PhysRevLett.77.3506

Measurement of the $t\bar{t}$ production cross section in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV using dilepton events

CDF

Collaboration

•

D. Acosta
(
- Florida U.
)

et al.

- Phys.Rev.Lett. 93 (2004) 142001
•
e-Print:
- hep-ex/0404036
•
DOI:
- 10.1103/PhysRevLett.93.142001

NLL resummation of the heavy quark hadroproduction cross-section

Roberto Bonciani
(
- INFN, Florence and
- Florence U.
)
,
Stefano Catani
(
- CERN
)
,
Michelangelo L. Mangano
(
- CERN
)
,
Paolo Nason
(
- CERN
)

- Nucl.Phys.B 529 (1998) 424-450,
- Nucl.Phys.B 803 (2008) 234 (erratum)
•
e-Print:
- hep-ph/9801375
•
DOI:
- 10.1016/S0550-3213(98)00335-6

- JHEP 04 068

Next-to-next-to-leading order soft gluon corrections in top quark hadroproduction

Nikolaos Kidonakis
(
- Cambridge U.
)
,
Ramona Vogt
(
- LBL, Berkeley and
- UC, Davis
)

- Phys.Rev.D 68 (2003) 114014
•
e-Print:
- hep-ph/0308222
•
DOI:
- 10.1103/PhysRevD.68.114014

- JHEP 07 001

Measurement of the $t\bar{t}$ production cross section in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV using lepton + jets events with secondary vertex $b-$ tagging

CDF

Collaboration

•

D. Acosta
(
- Florida U.
)

et al.

- Phys.Rev.D 71 (2005) 052003
•
e-Print:
- hep-ex/0410041
•
DOI:
- 10.1103/PhysRevD.71.052003

Search for anomalous kinematics in ttˉt\bar{t}ttˉ dilepton events at {CDF} II

Citations per year

Measurement of the top quark mass and ttˉt\bar{t}ttˉ production cross section from dilepton events at the Collider Detector at Fermilab

Measurement of the top quark pair production cross section in ppˉp\bar{p}ppˉ​ collisions

A Multi - lepton signal for supersymmetric particles in Tevatron data?

Measurement of the ttˉt\bar{t}ttˉ production cross section in ppˉp\bar{p}ppˉ​ collisions at s=1.96\sqrt{s} = 1.96s​=1.96 TeV using dilepton events

NLL resummation of the heavy quark hadroproduction cross-section

Next-to-next-to-leading order soft gluon corrections in top quark hadroproduction

Measurement of the ttˉt\bar{t}ttˉ production cross section in ppˉp\bar{p}ppˉ​ collisions at s=1.96\sqrt{s} = 1.96s​=1.96 TeV using lepton + jets events with secondary vertex b−b-b−tagging