Search for extra dimensions in boson and fermion pair production in $e^{+} e^{-}$ interactions at LEP

Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be of the same order as the electroweak scale. A sizeable interaction between gravitons and Standard Model particles is then predicted. Effects of these new interactions in boson and fermion pair production are searched for in the data sample collected at centre-of-mass energies above the Z pole by the L3 detector at LEP. In addition, the direct production of a graviton associated with a Z boson is investigated. No statistically significant hints for the existence of these effects are found and lower limits in excess of 1 TeV are derived on the scale of this new theory of gravity.

electron positron: colliding beams
electron positron: annihilation
electron positron: elastic scattering
boson: pair production
Z0
W
photon
intermediate boson: hadronic decay
intermediate boson: leptonic decay
fermion: pair production

References(35)

Figures(9)

Partial Symmetries of Weak Interactions

S.L. Glashow
(
- Copenhagen U.
)

- Nucl.Phys. 22 (1961) 579-588,
- Also in *Lai, C. H. (Ed.): Gauge Theory Of Weak and Electromagnetic Interactions*, 171-180
•
DOI:
- 10.1016/0029-5582(61)90469-2

Weak and Electromagnetic Interactions

Abdus Salam
(
- Imperial Coll., London and
- ICTP, Trieste
)

- Conf.Proc.C 680519 (1968) 367-377,
- Reprinted in *Lichtenberg, D. B. (ed.), Rosen, S. P. (ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 160-170, and in *Lai, C. H. (ed.): Gauge Theory Of Weak and Electromagnetic Interactions*, 188-198,
- Also in *Rosner, J.L. (ed.): New particles* 29-39,
- Also in *Ali, A. (ed.) et al.: Selected papers of Abdus Salam* 244-254
•
DOI:
- 10.1142/9789812795915_0034

A Model of Leptons

Steven Weinberg
(
- MIT, LNS
)

- Phys.Rev.Lett. 19 (1967) 1264-1266,
- Also in *Lichtenberg, D. B. (ed.), Rosen, S. P. (ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 157-159,
- In *Lai, C. H. (ed.): Gauge Theory Of Weak and Electromagnetic Interactions*, 185-187,
- In *Rosner, J. L. (ed.): New Particles*, 26-28
•
DOI:
- 10.1103/PhysRevLett.19.1264

Experimental status of gravitational strength forces in the subcentimeter regime

- Nucl.Phys.B 539 (1999) 23-34
•
e-Print:
- hep-ph/9805217
•
DOI:
- 10.1016/S0550-3213(98)00711-1

The Hierarchy problem and new dimensions at a millimeter

Nima Arkani-Hamed
(
- SLAC
)
,
Savas Dimopoulos
(
- Stanford U., Phys. Dept.
)
,
G.R. Dvali
(
- ICTP, Trieste
)

- Phys.Lett.B 429 (1998) 263-272
•
e-Print:
- hep-ph/9803315
•
DOI:
- 10.1016/S0370-2693(98)00466-3

Search for low scale gravity effects in $e^{+} e^{-}$ collisions at LEP

L3

Collaboration

•

M. Acciarri

et al.

- Phys.Lett.B 464 (1999) 135-144
•
e-Print:
- hep-ex/9909019
•
DOI:
- 10.1016/S0370-2693(99)01011-4

The Construction of the L3 Experiment

L3

Collaboration

•

B. Adeva
(
- CERN
)

et al.

- Nucl.Instrum.Meth.A 289 (1990) 35-102
•
DOI:
- 10.1016/0168-9002(90)90250-A

Results from the L3 experiment at LEP

L3

Collaboration

•

O. Adriani

et al.

- Phys.Rept. 236 (1993) 1-146
•
DOI:
- 10.1016/0370-1573(93)90027-B

Luminosity Measurement in the L3 Detector at LEP

et al.

- Nucl.Instrum.Meth.A 381 (1996) 236-266
•
DOI:
- 10.1016/S0168-9002(96)00734-6

Test beam results for an upgraded forward tagger of the L3 Experiment at LEP-2

et al.

- Nucl.Instrum.Meth.A 349 (1994) 345-355
•
DOI:
- 10.1016/0168-9002(94)91198-3

The L3 silicon microvertex detector

L3 SMD

Collaboration

•

M. Acciarri
(
- Aachen, Tech. Hochsch.
)

et al.

- Nucl.Instrum.Meth.A 351 (1994) 300-312
•
DOI:
- 10.1016/0168-9002(94)91357-9

The Forward muon detector of L3

et al.

- Nucl.Instrum.Meth.A 383 (1996) 342-366
•
DOI:
- 10.1016/S0168-9002(96)00777-2

The L3 lead scintillating fiber calorimeter

G. Basti
(
- Rome U. and
- INFN, Rome
)
,
Mario Campanelli
(
- Rome U. and
- INFN, Rome
)
,
F. Cavallari
(
- Rome U. and
- INFN, Rome
)
,
F. de Notaristefani
(
- Rome U. and
- INFN, Rome
)
,
M. Diemoz
(
- Rome U. and
- INFN, Rome
)

et al.

- Nucl.Instrum.Meth.A 374 (1996) 293-298
•
DOI:
- 10.1016/0168-9002(96)00206-9

Multiphoton production in e+ e- collisions at S**(1/2) = 189-GeV

OPAL

Collaboration

•

G. Abbiendi

et al.

- Phys.Lett.B 465 (1999) 303-314
•
e-Print:
- hep-ex/9907064
•
DOI:
- 10.1016/S0370-2693(99)01092-8

Tests of the standard model and constraints on new physics from measurements of fermion pair production at 189-GeV at LEP

OPAL

Collaboration

•

G. Abbiendi

et al.

- Eur.Phys.J.C 13 (2000) 553-572
•
e-Print:
- hep-ex/9908008
•
DOI:
- 10.1007/s100520050718

e-Print:
- hep-ex/9909294

Global analysis of Bhabha scattering at LEP-2 and limits on low scale gravity models

Dimitri Bourilkov
(
- Zurich, ETH
)

- JHEP 08 (1999) 006
•
e-Print:
- hep-ph/9907380
•
DOI:
- 10.1088/1126-6708/1999/08/006

Indirect collider signals for extra dimensions

JoAnne L. Hewett
(
- SLAC
)

- Phys.Rev.Lett. 82 (1999) 4765-4768
•
e-Print:
- hep-ph/9811356
•
DOI:
- 10.1103/PhysRevLett.82.4765

Single and multiphoton events with missing energy in $e^{+} e^{-}$ collisions at $\sqrt{S}$ - 189-GeV

L3

Collaboration

•

M. Acciarri

et al.

- Phys.Lett.B 470 (1999) 268-280
•
e-Print:
- hep-ex/9910009
•
DOI:
- 10.1016/S0370-2693(99)01286-1

Limits on low scale gravity from e+ e- ---> W+ W-, Z Z and gamma gamma

K. Agashe
(
- Oregon U.
)
,
N.G. Deshpande
(
- Oregon U.
)

- Phys.Lett.B 456 (1999) 60-67
•
e-Print:
- hep-ph/9902263
•
DOI:
- 10.1016/S0370-2693(99)00432-3

Study of $Z$ Boson Pair Production in $e^{+} e^{-}$ collisions at LEP at $S^{(1/2)}$ = 189-GeV

L3

Collaboration

•

M. Acciarri

et al.

- Phys.Lett.B 465 (1999) 363-375
•
e-Print:
- hep-ex/9909043
•
DOI:
- 10.1016/S0370-2693(99)01065-5

Weight optimization in multichannel Monte Carlo

Ronald Kleiss
(
- NIKHEF, Amsterdam
)
,
Roberto Pittau
(
- Leiden U.
)

- Comput.Phys.Commun. 83 (1994) 141-146
•
e-Print:
- hep-ph/9405257
•
DOI:
- 10.1016/0010-4655(94)90043-4

Four quark processes at LEP 200

R. Pittau
(
- Leiden U.
)

- Phys.Lett.B 335 (1994) 490-493,
- Phys. Lett. B335 (1994) 490-493. and Leiden Univ. - INLO-PUB-94-08 (94/06,rec.Jun.) 8 p
•
e-Print:
- hep-ph/9406233
•
DOI:
- 10.1016/0370-2693(94)90382-4

Monte Carlo program KORALW-1.02 for W pair production at LEP-2 / NLC energies with Yennie-Frautschi-Suura exponentiation

M. Skrzypek
(
- Cracow, INP
)
,
S. Jadach
(
- Cracow, INP and
- CERN
)
,
W. Placzek
(
- Tennessee U.
)
,
Z. Was
(
- CERN and
- Cracow, INP
)

- Comput.Phys.Commun. 94 (1996) 216-248,
- Comput. Phys. Commun. 94 (1996) 216-248, and CERN Geneva - CERN-TH-95-205 (95/07,rec.Oct.) 42 p
•
DOI:
- 10.1016/0010-4655(95)00133-6

Initial state QED corrections to W pair production at LEP-2 / NLC: Monte Carlo versus semianalytical approach

M. Skrzypek
(
- Cracow, INP
)
,
S. Jadach
(
- Cracow, INP and
- CERN
)
,
M. Martinez
(
- Barcelona, Autonoma U.
)
,
W. Placzek
(
- Tennessee U.
)
,
Z. Was
(
- CERN and
- Cracow, INP
)

- Phys.Lett.B 372 (1996) 289-298
•
DOI:
- 10.1016/0370-2693(96)00080-9

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Search for extra dimensions in boson and fermion pair production in e+e−e^{+} e^{-}e+e− interactions at LEP

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Search for extra dimensions in boson and fermion pair production in $e^{+} e^{-}$ interactions at LEP