Search for contact interactions in deep inelastic $e^{+} p \to e^{+} X$ scattering at HERA

In a search for signatures of physics processes beyond the Standard Model, various eeqq vector contact-interaction hypotheses have been tested using the high-Q^2, deep inelastic neutral-current e^+p scattering data collected with the ZEUS detector at HERA. The data correspond to an integrated luminosity of 47.7pb-1 of e^+p interactions at 300GeV center-of-mass energy. No significant evidence of a contact-interaction signal has been found. Limits at the 95% confidence level are set on the contact-interaction amplitudes. The effective mass scales Lambda corresponding to these limits range from 1.7TeV to 5TeV for the contact-interaction scenarios considered.

Note:

27 pages including 7 figures; Correction 07/June/99: labels VV and VA in fig. 4 interchanged; Replaced 14/Jan/00: minor textual clarifications, reordering of figures 4-6; accepted by Eur.Phys.J.C Report-no: DESY-99-058

positron p: colliding beams
positron p: deep inelastic scattering
neutral current
momentum transfer: high
new interaction: search for
four-fermion interaction: vector
effective Lagrangian
cross section: momentum transfer
x-dependence
ZEUS

References(41)

Figures(7)

Comparison of ZEUS data with standard model predictions for $e^{+} p \to e^{+} X$ scattering at high x and $Q^{2}$

ZEUS

Collaboration

•

J. Breitweg
(
- Argonne
)

et al.

- Z.Phys.C 74 (1997) 207-220
•
e-Print:
- hep-ex/9702015
•
DOI:
- 10.1007/s002880050384

Observation of events at very high $Q^{2}$ in $e p$ collisions at HERA

H1

Collaboration

•

C. Adloff

et al.

- Z.Phys.C 74 (1997) 191-206
•
e-Print:
- hep-ex/9702012
•
DOI:
- 10.1007/s002880050383

Pursuing interpretations of the HERA large $Q^{2}$ data

Guido Altarelli
(
- CERN and
- Rome III U.
)
,
John R. Ellis
(
- CERN
)
,
G.F. Giudice
(
- CERN
)
,
S. Lola
(
- CERN
)
,
Michelangelo L. Mangano
(
- CERN
)

- Nucl.Phys.B 506 (1997) 3-28
•
e-Print:
- hep-ph/9703276
•
DOI:
- 10.1016/S0550-3213(97)88964-X

Contact interactions and high $Q^{2}$ events in $e^{+} p$ collisions at HERA

Vernon D. Barger
(
- Wisconsin U., Madison
)
,
King-man Cheung
(
- Texas U.
)
,
Kaoru Hagiwara
(
- Wisconsin U., Madison and
- KEK, Tsukuba and
- Tokyo U., ICEPP
)
,
D. Zeppenfeld
(
- Wisconsin U., Madison
)

- Phys.Lett.B 404 (1997) 147-152
•
e-Print:
- hep-ph/9703311
•
DOI:
- 10.1016/S0370-2693(97)00517-0

Global study of electron - quark contact interactions

Vernon D. Barger
(
- Wisconsin U., Madison
)
,
King-man Cheung
(
- Texas U.
)
,
Kaoru Hagiwara
(
- Wisconsin U., Madison and
- KEK, Tsukuba and
- Tokyo U., ICEPP
)
,
D. Zeppenfeld
(
- Wisconsin U., Madison
)

- Phys.Rev.D 57 (1998) 391-404
•
e-Print:
- hep-ph/9707412
•
DOI:
- 10.1103/PhysRevD.57.391

Four fermion effective interactions and recent data at HERA

Nicola Di Bartolomeo
(
- SISSA, Trieste
)
,
Marco Fabbrichesi
(
- INFN, Trieste and
- SISSA, Trieste
)

- Phys.Lett.B 406 (1997) 237-242
•
e-Print:
- hep-ph/9703375
•
DOI:
- 10.1016/S0370-2693(97)00678-3

Leptoquarks and compositeness scales from a contact interaction analysis of deep inelastic e+- p scattering at HERA

H1

Collaboration

•

S. Aid

et al.

- Phys.Lett.B 353 (1995) 578-588
•
e-Print:
- hep-ex/9504008
•
DOI:
- 10.1016/0370-2693(95)00611-N

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

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

Fermion pair production above the Z and search for new phenomena

Dimitri Bourilkov
(
- Zurich, ETH
)

•
e-Print:
- hep-ex/9806027

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

Limits on quark-lepton compositeness scales from dileptons produced in 1.8 TeV $p\bar{p}$ collisions

CDF

Collaboration

•

F. Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 79 (1997) 2198-2203
•
DOI:
- 10.1103/PhysRevLett.79.2198

Measurement of the high mass Drell-Yan cross-section and limits on quark electron compositeness scales

D0

Collaboration

•

B. Abbott

et al.

- Phys.Rev.Lett. 82 (1999) 4769-4774
•
e-Print:
- hep-ex/9812010
•
DOI:
- 10.1103/PhysRevLett.82.4769

An attempt of a theory of beta radiation. 1.

E. Fermi
(
- Rome U.
)

- Z.Phys. 88 (1934) 161-177
•
DOI:
- 10.1007/BF01351864

Trends to a Theory of beta Radiation. (In Italian)

E. Fermi
(
- Rome U.
)

- Nuovo Cim. 11 (1934) 1-19,
- Reprinted in *Bologna 1984, Proceedings, Fifty years of weak-interaction physics* 535-553
•
DOI:
- 10.1007/BF02959820

New Tests for Quark and Lepton Substructure

E. Eichten
(
- Fermilab and
- Chicago U., EFI
)
,
Kenneth D. Lane
(
- Ohio State U.
)
,
Michael E. Peskin
(
- SLAC
)

- Phys.Rev.Lett. 50 (1983) 811-814,
•
DOI:
- 10.1103/PhysRevLett.50.811

Effects of Compositeness in Deep Inelastic Scattering

R. Ruckl
(
- Munich, Max Planck Inst. and
- Munich U.
)

- Phys.Lett.B 129 (1983) 363-369
•
DOI:
- 10.1016/0370-2693(83)90682-2

Probing Lepton and Quark Substructure in Polarized $e^\mp N$ Scattering

R. Ruckl
(
- Munich, Max Planck Inst. and
- Munich U.
)

- Nucl.Phys.B 234 (1984) 91-105
•
DOI:
- 10.1016/0550-3213(84)90226-8

Measurement of parity nonconservation and an anapole moment in cesium

et al.

- Science 275 (1997) 1759-1763
•
DOI:
- 10.1126/science.275.5307.1759

Atomic parity violation in cesium and implications for new physics

Aldo Deandrea
(
- Marseille, CPT
)

- Phys.Lett.B 409 (1997) 277-282
•
e-Print:
- hep-ph/9705435
•
DOI:
- 10.1016/S0370-2693(97)00843-5

Atomic parity violation and the HERA anomaly

Leonardo Giusti
(
- Pisa, Scuola Normale Superiore and
- INFN, Pisa
)
,
Alessandro Strumia
(
- Pisa U. and
- INFN, Pisa
)

- Phys.Lett.B 410 (1997) 229-232
•
e-Print:
- hep-ph/9706298
•
DOI:
- 10.1016/S0370-2693(97)00982-9

Vertex Triggering Using Time Difference Measurements in the ZEUS Central Tracking Detector

N. Harnew
(
- Bristol U. and
- Oxford U. and
- Rutherford
)
,
G.P. Heath
(
- Bristol U. and
- Oxford U. and
- Rutherford
)
,
M.D. Jeffs
(
- Bristol U. and
- Oxford U. and
- Rutherford
)
,
J. Nash
(
- Bristol U. and
- Oxford U. and
- Rutherford
)
,
G. Salmon
(
- Bristol U. and
- Oxford U. and
- Rutherford
)

et al.

- Nucl.Instrum.Meth.A 279 (1989) 290-296
•
DOI:
- 10.1016/0168-9002(89)91096-6

The Performance of the Zeus central tracking detector z-by-timing electronics in a transputer based data acquisition system

et al.

- Nucl.Phys.B Proc.Suppl. 32 (1993) 181-188,
- In *Como 1992, Proceedings, Advanced technology and particle physics* 181-188,
- Nucl. Phys. B, Proc. Suppl. 32 (1993) 181-188) and Oxford Univ. - OUNP-92-14 (92,rec.Oct.) 8 p
•
DOI:
- 10.1016/0920-5632(93)90023-Y

The Design and construction of the ZEUS central tracking detector

ZEUS

Collaboration

•

B. Foster
(
- Bristol U.
)

et al.

- Nucl.Instrum.Meth.A 338 (1994) 254-283
•
DOI:
- 10.1016/0168-9002(94)91313-7

Design and construction of the ZEUS barrel calorimeter.

et al.

- Nucl.Instrum.Meth.A 309 (1991) 77-100
•
DOI:
- 10.1016/0168-9002(91)90094-7

1-25 of 41
1
2
25 / page

Search for contact interactions in deep inelastic e+p→e+Xe^{+} p \to e^{+} Xe+p→e+X scattering at HERA

Citations per year

Search for contact interactions in deep inelastic $e^{+} p \to e^{+} X$ scattering at HERA