Search for leptoquarks in electron photon scattering at s($e e) ^{(1/2)}$ up to 209-GeV at LEP - INSPIRE

DataBETA

Search for leptoquarks in electron photon scattering at s( $e e) ^{(1/2)}$ up to 209-GeV at LEP

OPAL

Collaboration

Dec, 2001

23 pages

Published in:

Phys.Lett.B 526 (2002) 233-246

e-Print:

hep-ex/0112024 [hep-ex]

DOI:

10.1016/S0370-2693(01)01485-X

PDG: Mass Limits for Leptoquarks from Single Production

Report number:

CERN-EP-2001-093

Experiments:

CERN-LEP-OPAL

View in:

reference search26 citations

Citations per year

Abstract: (Elsevier)

Searches for first generation scalar and vector leptoquarks, and for squarks in R-parity violating SUSY models with the direct decay of the squark into Standard Model particles, have been performed using e + e − collisions collected with the OPAL detector at LEP at e + e − centre-of-mass energies between 189 and 209 GeV. No excess of events is found over the expectation from Standard Model background processes. Limits are computed on the leptoquark couplings for different values of the branching ratio to electron–quark final states.

Note:

23 pages, 5 figures, Submitted to Phys. Lett. B Report-no: CERN-EP-2001-093

electron positron: colliding beams
photon electron: interaction
new particle: search for
leptoquark: scalar
leptoquark: vector
squark: decay
supersymmetry
R parity: violation
electroweak interaction: validity test
leptoquark: decay modes

References(47)

Figures(0)

Leptoquarks in Lepton - Quark Collisions

W. Buchmuller
(
- Hannover U. and
- DESY
)
,
R. Ruckl
(
- DESY
)
,
D. Wyler
(
- Zurich, ETH
)

- Phys.Lett.B 191 (1987) 442-448,
- Phys.Lett.B 448 (1999) 320-320 (erratum)
•
DOI:
- 10.1016/0370-2693(87)90637-X

Leptoquark / squark interpretation of HERA events: Virtual effects in e+ e- annihilation to hadrons

J. Kalinowski
(
- DESY and
- Warsaw U.
)
,
R. Ruckl
(
- Wurzburg U.
)
,
H. Spiesberger
(
- Bielefeld U.
)
,
P.M. Zerwas
(
- DESY
)

- Z.Phys.C 74 (1997) 595-603
•
e-Print:
- hep-ph/9703288
•
DOI:
- 10.1007/s002880050424

Leptoquark mass limits from single leptoquark production at LEP and LEP-200

Michael A. Doncheski
(
- Ottawa Carleton Inst. Phys. and
- Carleton U.
)
,
Stephen Godfrey
(
- Ottawa Carleton Inst. Phys. and
- Carleton U.
)

- Phys.Lett.B 393 (1997) 355-359
•
e-Print:
- hep-ph/9608368
•
DOI:
- 10.1016/S0370-2693(96)01647-4

What can we learn about leptoquarks at LEP-2?

- Mod.Phys.Lett.A 12 (1997) 1719-1725
•
e-Print:
- hep-ph/9703285
•
DOI:
- 10.1142/S0217732397001758

- Nucl.Phys.B Proc.Suppl. 37 181

Search for pair produced leptoquarks in $e^{+} e^{-}$ interactions at $S^{(1/2)}$ approximately = 183-GeV

OPAL

Collaboration

•

G. Abbiendi

et al.

- Eur.Phys.J.C 13 (2000) 15-27
•
e-Print:
- hep-ex/9908007

Search for Leptoquarks and FCNC in $e^{+} e^{-}$ annihilations at $S^{(1/2)}$ = 183-GeV

DELPHI

Collaboration

•

P. Abreu

et al.

- Phys.Lett.B 446 (1999) 62-74
•
e-Print:
- hep-ex/9903072
•
DOI:
- 10.1016/S0370-2693(98)01525-1

Limits on the production of scalar leptoquarks from Z0 decays at LEP

DELPHI

Collaboration

•

P. Abreu

et al.

- Phys.Lett.B 316 (1993) 620-630
•
DOI:
- 10.1016/0370-2693(93)91053-P

Search for scalar leptoquarks from Z0 decays

DELPHI

Collaboration

•

P. Abreu
(
- LIP, Lisbon
)

et al.

- Phys.Lett.B 275 (1992) 222-230
•
DOI:
- 10.1016/0370-2693(92)90878-8

Searches for new particles in $Z$ decays using the ALEPH detector

ALEPH

Collaboration

•

D. Decamp
(
- Annecy, LAPP
)

et al.

- Phys.Rept. 216 (1992) 253-340
•
DOI:
- 10.1016/0370-1573(92)90177-2

A Search for scalar leptoquarks in Z0 decays

OPAL

Collaboration

•

G. Alexander
(
- Tel Aviv U.
)

et al.

- Phys.Lett.B 263 (1991) 123-134
•
DOI:
- 10.1016/0370-2693(91)91717-A

Search for leptoquarks in Z0 decays

L3

Collaboration

•

B. Adeva
(
- CERN
)

et al.

- Phys.Lett.B 261 (1991) 169-176
•
DOI:
- 10.1016/0370-2693(91)91346-W

Study of fermion pair production in $e^{+} e^{-}$ collisions at 130-GeV to 183-GeV

ALEPH

Collaboration

•

R. Barate
(
- Annecy, LAPP
)

et al.

- Eur.Phys.J.C 12 (2000) 183-207
•
e-Print:
- hep-ex/9904011
•
DOI:
- 10.1007/s100529900223

Tests of the standard model and constraints on new physics from measurements of fermion pair production at 183-GeV at LEP

OPAL

Collaboration

•

G. Abbiendi

et al.

- Eur.Phys.J.C 6 (1999) 1-18
•
e-Print:
- hep-ex/9808023
•
DOI:
- 10.1007/s100529801027

Search for new physics phenomena in fermion pair production at LEP

L3

Collaboration

•

M. Acciarri

et al.

- Phys.Lett.B 433 (1998) 163-175
•
DOI:
- 10.1016/S0370-2693(98)00641-8

A Search for leptoquark bosons in e- p collisions at HERA

H1

Collaboration

•

C. Adloff

et al.

- Phys.Lett.B 523 (2001) 234-242
•
e-Print:
- hep-ex/0107038
•
DOI:
- 10.1016/S0370-2693(01)01262-X

Search for resonance decays to an anti-neutrino plus jet in e+ p scattering at DESY HERA

ZEUS

Collaboration

•

J. Breitweg
(
- Argonne
)

et al.

- Phys.Rev.D 63 (2001) 052002
•
e-Print:
- hep-ex/0009059
•
DOI:
- 10.1103/PhysRevD.63.052002

Search for resonances decaying to $e +$ jet in $e^{+} p$ interactions at HERA

ZEUS

Collaboration

•

J. Breitweg
(
- Argonne
)

et al.

- Eur.Phys.J.C 16 (2000) 253-267
•
e-Print:
- hep-ex/0002038
•
DOI:
- 10.1007/s100520050018

A Search for leptoquark bosons and lepton flavor violation in $e^{+} p$ collisions at HERA

H1

Collaboration

•

C. Adloff

et al.

- Eur.Phys.J.C 11 (1999) 447-471,
- Eur.Phys.J.C 14 (2000) 553-554 (erratum)
•
e-Print:
- hep-ex/9907002
•
DOI:
- 10.1007/s100520050646

Search for First Generation Scalar and Vector Leptoquarks

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.D 64 (2001) 092004
•
e-Print:
- hep-ex/0105072
•
DOI:
- 10.1103/PhysRevD.64.092004

Search for first generation scalar leptoquark pairs in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

D0

Collaboration

•

B. Abbott

et al.

- Phys.Rev.Lett. 80 (1998) 2051-2056
•
e-Print:
- hep-ex/9710032
•
DOI:
- 10.1103/PhysRevLett.80.2051

Search for first generation leptoquark pair production in $p\bar{p}$ collisions at $\sqrt{s} = 1.8$ TeV

CDF

Collaboration

•

F. Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 79 (1997) 4327-4332
•
e-Print:
- hep-ex/9708017
•
DOI:
- 10.1103/PhysRevLett.79.4327

Search for scalar leptoquark pairs decaying to electrons and jets in $\bar{p}p$ collisions

D0

Collaboration

•

B. Abbott

et al.

- Phys.Rev.Lett. 79 (1997) 4321-4326
•
e-Print:
- hep-ex/9707033
•
DOI:
- 10.1103/PhysRevLett.79.4321

The OPAL detector at LEP

OPAL

Collaboration

•

K. Ahmet

et al.

- Nucl.Instrum.Meth.A 305 (1991) 275-319
•
DOI:
- 10.1016/0168-9002(91)90547-4

The extended OPAL silicon strip microvertex detector

OPAL

Collaboration

•

S. Anderson
(
- Indiana U.
)

et al.

- Nucl.Instrum.Meth.A 403 (1998) 326-350
•
DOI:
- 10.1016/S0168-9002(97)01093-0

1-25 of 47
1
2
25 / page