An experimental study of muon pair production in tagged two photon interactions

The process e + e − →e + e − μ + μ − has been studied in single-tag and double-tag configurations using the TOPAZ detector at TRISTAN. The data correspond to the integrated luminosity of 45.3pb − at center-of-mass energies ranging from 52 to 61.4 GeV. The observed events in both configurations have shown a good agreement with QED predictions in order α 4 . Although the AMY group reported an excess of e + e − →e + e − μ + μ − events in double-tag mode at low muon invariant mass region less than 1.0 GeV/c 2 , we did not observed such excess in our data.

electron positron: colliding beams
colliding beams: electron positron
electron positron: inelastic scattering
inelastic scattering: electron positron
exchange: two-photon
two-photon: exchange
photon photon: interaction
interaction: photon photon
muon: pair production
pair production: muon

References(24)

Figures(0)

An Experimental Study of $e^+ e^-$ Annihilation Into Four Leptons

CELLO

Collaboration

•

H.J. Behrend
(
- DESY
)

et al.

- Z.Phys.C 43 (1989) 1
•
DOI:
- 10.1007/BF02430605

Lepton Pair Production in Double Tagged Two Photon Interactions

JADE

Collaboration

•

W. Bartel
(
- DESY and
- Helsinki U. and
- Wuppertal U.
)

et al.

- Z.Phys.C 30 (1986) 545
•
DOI:
- 10.1007/BF01571802

Electroweak studies in e+ e- collisions: 12 < s**(1/2) < 46.78 GeV

MARK J

Collaboration

•

B. Adeva

et al.

- Phys.Rev.D 38 (1988) 2665-2678
•
DOI:
- 10.1103/PhysRevD.38.2665

Tagged Two Photon Production of Muon Pairs

PLUTO

Collaboration

•

Christoph Berger
(
- Aachen, Tech. Hochsch.
)

et al.

- Z.Phys.C 27 (1985) 249
•
DOI:
- 10.1007/BF01556614

Study of Four Lepton Final States in $e^+ e^-$ Interactions at $\sqrt{s}=29$ -{GeV}

et al.

- Phys.Rev.D 42 (1990) 2171-2179
•
DOI:
- 10.1103/PhysRevD.42.2171

Test of QED to fourth order by study of four lepton final states in e+ e- interactions at 29-GeV with the HRS detector

et al.

- Phys.Rev.D 42 (1990) 2180-2186
•
DOI:
- 10.1103/PhysRevD.42.2180

Observation of anomalous production of muon pairs in $e^+e^-$ annihilation into four lepton final states

AMY

Collaboration

•

Y.H. Ho
(
- Rochester U.
)

et al.

- Phys.Lett.B 244 (1990) 573-579
•
DOI:
- 10.1016/0370-2693(90)90364-C

The Topaz Inner Drift Chamber

et al.

- Nucl.Instrum.Meth.A 269 (1988) 513
•
DOI:
- 10.1016/0168-9002(88)90127-1

The Topaz Time Projection Chamber

et al.

- Nucl.Instrum.Meth.A 252 (1986) 423-430,
- Wire Chamber Conf.1986:0423
•
DOI:
- 10.1016/0168-9002(86)91217-9

- IEEE Trans.Nucl.Sci. 35 1

- Jap.J.Appl.Phys. 25 L440

A Laser Calibration System for the {KEK} Topaz Barrel {TOF} Counters. Its Performance and the Characteristics of Its Major Components

- Nucl.Instrum.Meth.A 254 (1987) 367-372,
- Nucl. Instrum. Methods A254 ( 1987) 367-372
•
DOI:
- 10.1016/0168-9002(87)90686-3

STUDY OF LIMITED STREAMER DRIFT TUBE PERFORMANCE

et al.

- Nucl.Instrum.Meth.A 225 (1984) 23-30
•
DOI:
- 10.1016/0167-5087(84)91333-4

TOPAZ BARREL ELECTROMAGNETIC CALORIMETER

et al.

- Nucl.Instrum.Meth.A 270 (1988) 11
•
DOI:
- 10.1016/0168-9002(88)90004-6

A Cathode Readout Gas Sampling Calorimeter With Conductive Plastic Tubes

et al.

- Nucl.Instrum.Meth.A 236 (1985) 55
•
DOI:
- 10.1016/0168-9002(85)90126-3

The Gas Sampling Electromagnetic Calorimeter Using Conductive Plastic Tubes

et al.

- Nucl.Instrum.Meth.A 256 (1987) 449
•
DOI:
- 10.1016/0168-9002(87)90288-9

The Topaz Luminosity Monitor at {KEK}

et al.

- Nucl.Instrum.Meth.A 271 (1988) 404-416
•
DOI:
- 10.1016/0168-9002(88)90299-9

TOPAZ TRIGGER SYSTEM

et al.

- Nucl.Instrum.Meth.A 269 (1988) 507
•
DOI:
- 10.1016/0168-9002(88)90126-X

Design and Performance of Topaz {TPC} Trigger

- IEEE Trans.Nucl.Sci. 35 (1988) 419-423,
- IEEE Trans. Nucl. Sci. 35 (1988) 419-423 and Tsukuba KEK - KEK-Prepr.-87-093 (87,rec.Nov.) 5 p
•
DOI:
- 10.1109/23.12756

Total and Visible Cross-sections for Multi - Lepton Events in $e^+ e^-$ Collisions

- Phys.Lett.B 148 (1984) 489-492
•
DOI:
- 10.1016/0370-2693(84)90744-5

Radiative Corrections to the Process $e^+ e^- \to e^+ e^- \mu^+ \mu^-$

- Nucl.Phys.B 253 (1985) 421,
- Preprint - BERENDS, F.A. (REC.JUL.84) 43p,
- Abstract Only In *Granlibakken 1984, Proceedings, Photon-photon Collisions*, 430
•
DOI:
- 10.1016/0550-3213(85)90540-1

Monte Carlo Simulation of Two Photon Processes. 1. Radiative Corrections to Multiperipheral e+ e- mu+ mu- Production

- Comput.Phys.Commun. 40 (1986) 271-284,
- Comput. Phys. Commun. 40 ( 1986) 271-284
•
DOI:
- 10.1016/0010-4655(86)90114-1

Monte Carlo Simulation of Two Photon Processes. 2. Complete Lowest Order Calculations for Four Lepton Production Processes in electron Positron Collisions

- Comput.Phys.Commun. 40 (1986) 285-307,
- Comput. Phys. Commun. 40 ( 1986) 285-307
•
DOI:
- 10.1016/0010-4655(86)90115-3

Monte Carlo Simulation of Two Photon Processes. 3. Complete Lowest Order Calculations for $e^+ e^- \to e^+ e^- \mu^+ \mu^-$ With Large Angle Tagging Conditions

- Comput.Phys.Commun. 40 (1986) 309-326,
- Comput. Phys. Commun. 40 ( 1986) 309-326
•
DOI:
- 10.1016/0010-4655(86)90116-5