H.C. Dehne

Deutsches Elektronen-Synchrotron DESY

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G. Knies

Deutsches Elektronen-Synchrotron DESY

W. Zimmermann

Deutsches Elektronen-Synchrotron DESY

G. Franke

Technical University of Darmstadt

L. Criegee

Université Paris Cité

B. Koppitz

TU Dresden

U. Timm

Deutsches Elektronen-Synchrotron DESY

G.G. Winter

Deutsches Elektronen-Synchrotron DESY

V. Blobel

Universität Hamburg

C. Grupen

University of Siegen

K. Derikum

Physikalisch-Technische Bundesanstalt

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Deutsches Elektronen-Synchrotron DESY

115

Universität Hamburg

European Organization for Nuclear Research

Westfälische Hochschule

University of Maryland, College Park

RWTH Aachen University

Hamburg Institut (Germany)

University of Bonn

University of Wuppertal

Stanford University

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Results from the Polarization Measurements in PETRA and Future Perspectives

Birkhäuser Basel eBooks (1981)

Hartmut Bremer H.C. Dehne H. C. Lewin H. Mais Ronny Neumann

In PETRA beam polarization was measured. The measurements show that the maximum degree of polarization achieved up to now does not exceed 60 percent. First and very preliminary measurements show that the polarization is destroyed by the beam-beam effect. The operational principle and the first results of a fast depolarizer are described and the program for future investigations is discussed.

Degree of polarization

10.1007/978-3-0348-6301-8_5

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Citations (1)

Evidence for heavy leptons from anomalous μe production in e+e− annihilation

Physics Letters B (1977)

J. Burmester L. Criegee H.C. Dehne K. Derikum R.C.E. Devenish

DESY

Annihilation

Electron–positron annihilation

Pair production

10.1016/0370-2693(77)90293-3

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Citations (41)

OBSERVATION OF QCD EFFECTS IN TRANSVERSE MOMENTA OF e⁺ e⁻ JETS

WORLD SCIENTIFIC eBooks (2019)

Ch. Berger H. Genzel R. Grigull W. Lackas F. Raupach

10.1142/9789811213908_0013

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Citations (0)

Measurement of the f0(1270) polarization in the J/ψ → f0 γ decay

Physics Letters B (1978)

G. Alexander L. Criegee H.C. Dehne K. Derikum R.C.E. Devenish

10.1016/0370-2693(78)90876-6

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Citations (18)

Inclusive Muon Production at c.m. Energies 12 to 31.6 GeV

Physical Review Letters (1980)

Ch. Berger H. Genzel R. Grigull W. Lackas F. Raupach

In this Letter, a measurement of inclusive muon production (${p}_{\ensuremath{\mu}}>2$ GeV/c) in ${e}^{+}{e}^{\ensuremath{-}}$ annihilation into hadrons at center-of-mass energies from $\sqrt{s}=12 \mathrm{to} 31.6$ GeV is reported. The results agree with the expected semileptonic decays from charmed and bottom mesons.

Annihilation

Electron–positron annihilation

Semileptonic decay

10.1103/physrevlett.45.1533

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Citations (7)

Results of Machine Physics Studies on {PETRA} in 1979

D. Degele R. Kose K. H. Hoffmann A. Hutton D. Trines

Source

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A study of jets in electron positron annihilation into hadrons in the energy range 3.1 to 9.5 GeV

Physics Letters B (1978)

Ch. Berger W. Lackas F. Raupach W. Wagner G. Alexander

Annihilation

Electron–positron annihilation

Sphericity

Pluto

10.1016/0370-2693(78)90377-5

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Citations (115)

Test of QED in the reactionse + e ??e + e ? ande + e ??? + ? ? at CMS energies from 9.4 to 31.6 GeV

Zeitschrift für Physik C (1980)

Ch. Berger H. Genzel R. Grigull W. Lackas F. Raupach

Bhabha scattering

Cut-off

Momentum (technical analysis)

Momentum transfer

10.1007/bf01421567

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Citations (9)

The Petra-Polarimeter

Birkhäuser Basel eBooks (1981)

Hartmut Bremer H.C. Dehne H. C. Lewin H. Mais Ronny Neumann

In PETRA the vertical beam polarization was measured using the following system: Circularly polarized photons are scattered by the electron beam. In the case of vertical polarization the vertical profile of the backscattered photons has asymmetries within an angle of 30 μrad. With such a system the degree of longitudinal polarization can also be detected whenever longitudinal polarization in the interaction region is required.

Polarimeter

Degree of polarization

Radial polarization

10.1007/978-3-0348-6301-8_55

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Citations (3)

NUMERICAL CALCULATIONS ON THE SMALL ANGLE SCATTERING LUMINOSITY MONITOR USED AT ADONE. Note No. 485.

H.C. Dehne M. Preger

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Citations (0)