New supersymmetric contributions to $t \to c$ V - INSPIRE

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New supersymmetric contributions to $t \to c$ V

Jorge L. Lopez
(
- Rice U.
)
,
Dimitri V. Nanopoulos
(
- Texas A-M and
- HARC, Woodlands
)
,
Raghavan Rangarajan
(
- HARC, Woodlands
)

Feb, 1997

7 pages

Published in:

Phys.Rev.D 56 (1997) 3100-3106

e-Print:

hep-ph/9702350 [hep-ph]

DOI:

10.1103/PhysRevD.56.3100

Report number:

ACT-05-97,
CTP-TAMU-10-97,
DOE-ER-40717-40

View in:

reference search159 citations

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Abstract:

We calculate the electroweak-like one-loop supersymmetric contributions to the rare and flavor-violating decay of the top quark into a charm quark and a gauge boson:

t->c V

, with

V=\gamma,Z,g

. We consider loops of both charginos and down-like squarks (where we identify and correct an error in the literature) and neutralinos and up-like squarks (which have not been calculated before). We also account for left-right and generational squark mixing. Our numerical results indicate that supersymmetric contributions to

t->cV

can be upto 5 orders of magnitude larger than their Standard Model counterparts. However, they still fall short of the sensitivity expected at the next-generation top-quark factories.

12.38.Bx
12.15.Lk
14.65.Ha
12.60.Jv
top
top: rare decay
quark: width
gauge boson: production
photon
Z0

References(30)

Figures(0)

[1]

Observation of top quark production in $\bar{p}p$ collisions

CDF

Collaboration

•

F. Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 74 (1995) 2626-2631
•
e-Print:
- hep-ex/9503002
•
DOI:
- 10.1103/PhysRevLett.74.2626

[1]

Observation of the top quark

D0

Collaboration

•

S. Abachi
(
- Fermilab
)

et al.

- Phys.Rev.Lett. 74 (1995) 2632-2637
•
e-Print:
- hep-ex/9503003
•
DOI:
- 10.1103/PhysRevLett.74.2632

[2]

Top - charm strong flavor changing neutral currents at the Tevatron

- Phys.Rev.D 54 (1996) 5758-5762
•
e-Print:
- hep-ph/9511337
•
DOI:
- 10.1103/PhysRevD.54.5758

[2]

Searching for $t \to c$ g at the Fermilab Tevatron

Tao Han
(
- UC, Davis
)
,
K. Whisnant
(
- Iowa State U.
)
,
B.L. Young
(
- Iowa State U.
)
,
X. Zhang
(
- Iowa State U. and
- Beijing, Inst. High Energy Phys.
)

- Phys.Lett.B 385 (1996) 311-316
•
e-Print:
- hep-ph/9606231
•
DOI:
- 10.1016/0370-2693(96)00843-X

[2]

Anomalous t - c - g coupling: The Connection between single top production and top decay

Timothy M.P. Tait
(
- Michigan State U.
)
,
C.P. Yuan
(
- Michigan State U.
)

- Phys.Rev.D 55 (1997) 7300-7301
•
e-Print:
- hep-ph/9611244
•
DOI:
- 10.1103/PhysRevD.55.7300

[2]

Indirect probes of new physics

[3]

Rare decay of the top quark in the minimal supersymmetric model

Chong Sheng Li
(
- Chongqing U. and
- Beijing, Inst. Theor. Phys.
)
,
R.J. Oakes
(
- Northwestern U.
)
,
Jin Min Yang
(
- Beijing, Inst. Theor. Phys.
)

- Phys.Rev.D 49 (1994) 293-298,
- Phys.Rev.D 56 (1997) 3156 (erratum)
•
DOI:
- 10.1103/PhysRevD.49.293

[4]

Flavor changing top quark decay within the minimal supersymmetric standard model

- Phys.Rev.D 52 (1995) 1713-1716
•
e-Print:
- hep-ph/9410230
•
DOI:
- 10.1103/PhysRevD.52.1713

[5]

Flavor Changing Radiative Decay of Thf T Quark

- Phys.Rev.D 41 (1990) 891-894
•
DOI:
- 10.1103/PhysRevD.41.891

[5]

Threshold enhancement and the flavor changing electromagnetic vertex

et al.

- Phys.Rev.Lett. 65 (1990) 827-830
•
DOI:
- 10.1103/PhysRevLett.65.827

[5]

T Quarks May Decay Into $Z$ Bosons and Charm

Harald Fritzsch
(
- Munich U. and
- Munich, Max Planck Inst.
)

- Phys.Lett.B 224 (1989) 423-425
•
DOI:
- 10.1016/0370-2693(89)91471-8

[5]

W. Buchmu
,
M. Gronau

- Phys.Lett. 220 (1989) 641

[5]

Rare decays of the top quark in the standard and two Higgs doublet models

G. Eilam
(
- Technion
)
,
J.L. Hewett
(
- Wisconsin U., Madison
)
,
A. Soni
(
- Brookhaven
)

- Phys.Rev.D 44 (1991) 1473-1484,
- Phys.Rev.D 59 (1999) 039901 (erratum)
•
DOI:
- 10.1103/PhysRevD.44.1473

[6]

Higgs Bosons in Supersymmetric Models. 1.

J.F. Gunion
(
- UC, Davis
)
,
Howard E. Haber
(
- UC, Santa Cruz and
- SLAC
)

- Nucl.Phys.B 272 (1986) 1,
- Nucl.Phys.B 402 (1993) 567-569 (erratum)
•
DOI:
- 10.1016/0550-3213(86)90340-8

[7]

Effects of supergravity induced electroweak breaking on rare $B$ decays and mixings

S. Bertolini
(
- DESY
)
,
Francesca Borzumati
(
- Munich, Max Planck Inst.
)
,
A. Masiero
(
- INFN, Padua
)
,
G. Ridolfi
(
- INFN, Genoa
)

- Nucl.Phys.B 353 (1991) 591-649
•
DOI:
- 10.1016/0550-3213(91)90320-W

[8]

One Loop Corrections for e+ e- Annihilation Into mu+ mu- in the Weinberg Model

G. Passarino
(
- Utrecht U.
)
,
M.J.G. Veltman
(
- Utrecht U.
)

- Nucl.Phys.B 160 (1979) 151-207
•
DOI:
- 10.1016/0550-3213(79)90234-7

[9]

See, e.g An Introduction to Quantum Field Theory ~ Reading, MA

M. Peskin
,
D. Schroeder

[10]

Enhanced supersymmetric corrections to top quark production at the Tevatron

Jaewan Kim
(
- HARC, Woodlands
)
,
Jorge L. Lopez
(
- Rice U.
)
,
Dimitri V. Nanopoulos
(
- HARC, Woodlands and
- Texas A-M
)
,
R. Rangarajan
(
- HARC, Woodlands
)

- Phys.Rev.D 54 (1996) 4364-4373
•
e-Print:
- hep-ph/9605419
•
DOI:
- 10.1103/PhysRevD.54.4364

[11]

Search for squarks and gluinos in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

D0

Collaboration

•

S. Abachi

et al.

- Phys.Rev.Lett. 75 (1995) 618-623
•
DOI:
- 10.1103/PhysRevLett.75.618

[11]

Search for squarks and gluinos from $\bar{p}p$ collisions at $\sqrt{s} = 1.8$ TeV

CDF

Collaboration

•

F. Abe

et al.

- Phys.Rev.Lett. 69 (1992) 3439-3443
•
DOI:
- 10.1103/PhysRevLett.69.3439

[11]

Search for gluino and squark cascade decays at the Fermilab Tevatron Collider

CDF

Collaboration

•

F. Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 76 (1996) 2006-2010
•
DOI:
- 10.1103/PhysRevLett.76.2006

[11]

in 10th Topical Workshop on Proton-Antiproton Collider Physics, R. Raja and J. Yoh (eds.) AIP Conf. Proc. No. 357 ~ AIP, New York

J. Hauser

[12]

Search for light top squarks in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

D0

Collaboration

•

S. Abachi

et al.

- Phys.Rev.Lett. 76 (1996) 2222-2227
•
DOI:
- 10.1103/PhysRevLett.76.2222

[12]

Search for scalar top and scalar bottom quarks using the OPAL detector at LEP

OPAL

Collaboration

•

K. Ackerstaff

et al.

- Phys.Lett.B 389 (1996) 197-210
•
DOI:
- 10.1016/S0370-2693(96)01395-0

[13]

Generalized Cabibbo Angles in Supersymmetric Gauge Theories

Malcolm J. Duncan
(
- Oxford U.
)

- Nucl.Phys.B 221 (1983) 285,
- Nucl. Phys. B221 ( 1983) 285-299
•
DOI:
- 10.1016/0550-3213(83)90579-5

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