Search for Contact Interactions in $e^{\pm}p$ Collisions at HERA - INSPIRE

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Search for Contact Interactions in $e^{\pm}p$ Collisions at HERA

H1

Collaboration

Jul, 2011

20 pages

Published in:

Phys.Lett.B 705 (2011) 52-58

e-Print:

1107.2478 [hep-ex]

DOI:

10.1016/j.physletb.2011.09.109

PDG: Scale Limits for Contact Interactions:

\Lambda\mathrm {({{\mathit e}} {{\mathit e}} {{\mathit q}} {{\mathit q}} )}

Report number:

DESY-11-114

View in:

reference search42 citations

Citations per year

Abstract: (Elsevier)

A search for physics beyond the Standard Model in neutral current deep inelastic scattering at high negative four-momentum transfer squared Q2 is performed in e±p collisions at HERA. The differential cross section dσ/dQ2 , measured using the full H1 data sample corresponding to an integrated luminosity of 446 pb−1 , is compared to the Standard Model prediction. No significant deviation is observed. Limits on various models predicting new phenomena at high Q2 are derived. For general four-fermion eeqq contact interaction models, lower limits on the compositeness scale Λ are set in the range 3.6 TeV to 7.2 TeV. Leptoquarks with masses MLQ and couplings λ are constrained to MLQ/λ>0.41–1.86 TeV and limits on squarks in R -parity violating supersymmetric models are derived. A lower limit on the gravitational scale in 4+n dimensions of MS>0.9 TeV is established for low-scale quantum gravity effects in models with large extra dimensions. For the light quark radius an upper bound of Rq<0.65⋅10−18 m is determined.

Note:

20 pages, 6 figures and 5 tables

positron p: deep inelastic scattering
new physics: search for
four-fermion interaction
electron p: deep inelastic scattering
neutral current
R parity: violation
differential cross section: measured
momentum transfer dependence
space-time: higher-dimensional
leptoquark: mass: lower limit

References(37)

Figures(7)

Search for new physics in $e^\pm q$ contact interactions at HERA

H1

Collaboration

•

C. Adloff

et al.

- Phys.Lett.B 568 (2003) 35-47
•
e-Print:
- hep-ex/0305015
•
DOI:
- 10.1016/j.physletb.2003.06.034

Search for compositeness, leptoquarks and large extra dimensions in $e q$ contact interactions at HERA

H1

Collaboration

•

C. Adloff

et al.

- Phys.Lett.B 479 (2000) 358-370
•
e-Print:
- hep-ex/0003002
•
DOI:
- 10.1016/S0370-2693(00)00332-4

Search for contact interactions, large extra dimensions and finite quark radius in e p collisions at HERA

ZEUS

Collaboration

•

S. Chekanov
(
- Argonne
)

et al.

- Phys.Lett.B 591 (2004) 23-41
•
e-Print:
- hep-ex/0401009
•
DOI:
- 10.1016/j.physletb.2004.03.081

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

ZEUS

Collaboration

•

J. Breitweg
(
- Argonne
)

et al.

- Eur.Phys.J.C 14 (2000) 239-254
•
e-Print:
- hep-ex/9905039

Constraints on electron quark contact interactions and implications to models of leptoquarks and extra $Z$ bosons

King-man Cheung
(
- Taiwan, Natl. Tsing Hua U.
)

- Phys.Lett.B 517 (2001) 167-176
•
e-Print:
- hep-ph/0106251
•
DOI:
- 10.1016/S0370-2693(01)00973-X

Search for Lepton Flavour Violation at HERA

H1

Collaboration

•

F.D. Aaron
(
- Bucharest, IFIN-HH and
- Bucharest U.
)

et al.

- Phys.Lett.B 701 (2011) 20-30
•
e-Print:
- 1103.4938
•
DOI:
- 10.1016/j.physletb.2011.05.023

Search for Lepton Flavour Violation at HERA

H1

Collaboration

•

F.D. Aaron
(
- Bucharest, IFIN-HH and
- Bucharest U.
)

et al.

- Phys.Lett.B 701 (2011) 20-30
•
e-Print:
- 1103.4938
•
DOI:
- 10.1016/j.physletb.2011.05.023

Search for Squarks in R-parity Violating Supersymmetry in ep Collisions at HERA

H1

Collaboration

•

F.D. Aaron
(
- Bucharest, IFIN-HH and
- Bucharest U.
)

et al.

- Eur.Phys.J.C 71 (2011) 1572
•
e-Print:
- 1011.6359
•
DOI:
- 10.1140/epjc/s10052-011-1572-y

Search for pair production of first or second generation leptoquarks in proton-proton collisions at $\sqrt{s}=7$ TeV using the ATLAS detector at the LHC

ATLAS

Collaboration

•

Georges Aad
(
- Freiburg U.
)

et al.

- Phys.Rev.D 83 (2011) 112006
•
e-Print:
- 1104.4481
•
DOI:
- 10.1103/PhysRevD.83.112006

Search for Pair Production of First-Generation Scalar Leptoquarks in $pp$ Collisions at $\sqrt{s}=7$ TeV

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.Lett. 106 (2011) 201802
•
e-Print:
- 1012.4031
•
DOI:
- 10.1103/PhysRevLett.106.201802

Search for pair production of first-generation leptoquarks in p anti-p collisions at s**(1/2) = 1.96-TeV

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Lett.B 681 (2009) 224-232
•
e-Print:
- 0907.1048
•
DOI:
- 10.1016/j.physletb.2009.10.016

Search for pair production of second generation scalar leptoquarks

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Lett.B 671 (2009) 224-232
•
e-Print:
- 0808.4023
•
DOI:
- 10.1016/j.physletb.2008.12.017

Search for Large extra spatial dimensions in the dielectron and diphoton channels in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.Lett. 102 (2009) 051601
•
e-Print:
- 0809.2813
•
DOI:
- 10.1103/PhysRevLett.102.051601

Measurement of dijet angular distributions at s**(1/2) = 1.96-TeV and searches for quark compositeness and extra spatial dimensions

D0

Collaboration

•

V.M. Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.Lett. 103 (2009) 191803
•
e-Print:
- 0906.4819
•
DOI:
- 10.1103/PhysRevLett.103.191803

Search for Large Extra Dimensions in the Diphoton Final State at the Large Hadron Collider

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 05 (2011) 085
•
e-Print:
- 1103.4279
•
DOI:
- 10.1007/JHEP05(2011)085

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

- Phys.Lett.B 191 422

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

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

R-parity violation at HERA

J. Butterworth
(
- Oxford U.
)
,
Herbert K. Dreiner
(
- Oxford U.
)

- Nucl.Phys.B 397 (1993) 3-34
•
e-Print:
- hep-ph/9211204
•
DOI:
- 10.1016/0550-3213(93)90334-L

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

Phenomenology, astrophysics and cosmology of theories with submillimeter dimensions and TeV scale quantum gravity

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

- Phys.Rev.D 59 (1999) 086004
•
e-Print:
- hep-ph/9807344
•
DOI:
- 10.1103/PhysRevD.59.086004

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