Inclusive production of charged hadrons in photon-photon collisions

The inclusive production of charged hadrons in the collisions of quasi-real photons e+e- -> e+e- +X has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass energies from 183 to 209 GeV. The differential cross-sections as a function of the transverse momentum and the pseudorapidity of the hadrons are compared to theoretical calculations of up to next-to-leading order (NLO) in the strong coupling constant alpha{s}. The data are also compared to a measurement by the L3 Collaboration, in which a large deviation from the NLO predictions is observed.

electron positron: colliding beams
exchange: two-photon
photon photon: inclusive reaction
hadron: photoproduction
differential cross section: transverse momentum
rapidity dependence
quantum chromodynamics: perturbation theory
OPAL
experimental results
CERN LEP Stor

References(31)

Figures(0)

Inclusive charged hadron production in two photon collisions at LEP

L3

Collaboration

•

P. Achard

et al.

- Phys.Lett.B 554 (2003) 105-114
•
e-Print:
- hep-ex/0301025
•
DOI:
- 10.1016/S0370-2693(03)00015-7

Inclusive jet production in photon-photon collisions at $\sqrt{s}$ = 130-GeV and 136-GeV

OPAL

Collaboration

•

K. Ackerstaff

et al.

- Z.Phys.C 73 (1997) 433-442
•
DOI:
- 10.1007/s002880050332

Dijet production in photon-photon collisions at $S^{(1/2)}$ (ee) = 161-GeV and 172-GeV

OPAL

Collaboration

•

G. Abbiendi

et al.

- Eur.Phys.J.C 10 (1999) 547-561
•
e-Print:
- hep-ex/9808027
•
DOI:
- 10.1007/s100529900139

Dijet production in photon-photon collisions at s(ee)**(1/2) from 189-GeV to 209-GeV

OPAL

Collaboration

•

G. Abbiendi

et al.

- Eur.Phys.J.C 31 (2003) 307-325
•
e-Print:
- hep-ex/0301013
•
DOI:
- 10.1140/epjc/s2003-01360-8

Inclusive jet production in two-photon collisions at LEP

L3

Collaboration

•

P. Achard

et al.

- Phys.Lett.B 602 (2004) 157-166
•
e-Print:
- hep-ex/0410012
•
DOI:
- 10.1016/j.physletb.2004.10.003

Inclusive production of charged hadrons and K0(S) mesons in photon-photon collisions

OPAL

Collaboration

•

K. Ackerstaff

et al.

- Eur.Phys.J.C 6 (1999) 253-264
•
e-Print:
- hep-ex/9808009
•
DOI:
- 10.1007/s100529801028

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

Precision luminosity for Z0 line shape measurements with a silicon tungsten calorimeter

OPAL

Collaboration

•

G. Abbiendi

et al.

- Eur.Phys.J.C 14 (2000) 373-425
•
e-Print:
- hep-ex/9910066
•
DOI:
- 10.1007/s100520000353

High-energy physics event generation with PYTHIA 5.7 and JETSET 7.4

Torbjorn Sjostrand
(
- CERN
)

- Comput.Phys.Commun. 82 (1994) 74-90,
- CERN Geneva - TH. 7111 (93/12,rec.Jan.94) 17 p. and e: CERN th-7111-93
•
DOI:
- 10.1016/0010-4655(94)90132-5

Photoproduction within the two component dual parton model. 1. Amplitudes and cross-sections

R. Engel
(
- Leipzig U. and
- Siegen U.
)

- Z.Phys.C 66 (1995) 203-214
•
DOI:
- 10.1007/BF01496594

e-Print:
- 0149.6594

Hadronic photon-photon interactions at high-energies

R. Engel
(
- Leipzig U. and
- Siegen U.
)
,
J. Ranft
(
- Annecy, LAPP
)

- Phys.Rev.D 54 (1996) 4244-4262
•
e-Print:
- hep-ph/9509373
•
DOI:
- 10.1103/PhysRevD.54.4244

Low and high mass components of the photon distribution functions

- Z.Phys.C 68 (1995) 607-624
•
e-Print:
- hep-ph/9503384
•
DOI:
- 10.1007/BF01565260

e-Print:
- 0156.5260

Parton structure of the photon beyond the leading order

- Phys.Rev.D 45 (1992) 3986-3994
•
DOI:
- 10.1103/PhysRevD.45.3986

Photonic parton distributions

- Phys.Rev.D 46 (1992) 1973-1979
•
DOI:
- 10.1103/PhysRevD.46.1973

The Monte Carlo program KORALZ, version 4.0, for the lepton or quark pair production at LEP / SLC energies

S. Jadach
(
- CERN and
- Cracow, INP
)
,
B.F.L. Ward
(
- Tennessee U. and
- SLAC
)
,
Z. Was
(
- CERN and
- Cracow, INP
)

- Comput.Phys.Commun. 79 (1994) 503-522
•
DOI:
- 10.1016/0010-4655(94)90190-2

Two Photon Processes at Very High-Energies

J.A.M. Vermaseren
(
- NIKHEF, Amsterdam
)

- Nucl.Phys.B 229 (1983) 347-371
•
DOI:
- 10.1016/0550-3213(83)90336-X

HERWIG: A Monte Carlo event generator for simulating hadron emission reactions with interfering gluons. Version 5.1 - April 1991

G. Marchesini
(
- Parma U. and
- INFN, Parma
)
,
B.R. Webber
(
- Cambridge U.
)
,
G. Abbiendi
(
- Padua U. and
- INFN, Padua
)
,
I.G. Knowles
(
- Glasgow U.
)
,
M.H. Seymour
(
- Cambridge U.
)

et al.

- Comput.Phys.Commun. 67 (1992) 465-508,
- Comput. Phys. Commun. 67 (1992) 465-508 and Hamburg DESY - DESY 91-048 (91/05,rec.Jul.) 49 p
•
DOI:
- 10.1016/0010-4655(92)90055-4