Polarization phenomena of electrons and photons. I

Lipps, F.W.; Tolhoek, H.A.

doi:10.1016/s0031-8914(54)80018-8

Cited by 86 publications

(28 citation statements)

References 8 publications

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“…Co mpto n scatteri ng i s an i ncoherent pro cess whi ch i nvol ves i nelasti c scatteri ng of pho to ns by electro ns (Fi g. 3). The scatteri ng for p ol ari zed pho to ns fro m a sta ti onary free electro n i s describ ed by the cross-section wri tten as [29 ]:…”

Section: Table I Iimentioning

confidence: 99%

X-Ray Magnetic Circular Dichroism and Compton Scattering: Application to 5f Electron Systems

et al. 2001

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Section: Table I Iimentioning

confidence: 99%

X-Ray Magnetic Circular Dichroism and Compton Scattering: Application to 5f Electron Systems

et al. 2001

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“…32 The laser beam polarisation (P γ , typically 99.8%) was continuously monitored. The statistical accuracy on P e was of ±1% every three minutes.…”

Section: Measurement Of the Left-right Asymmetry (A Lr )mentioning

confidence: 99%

Asymmetries at the Z pole: The Quark and Lepton Quantum Numbers

Тенчини¹

2016

Advanced Series on Directions in High Energy Physics

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The impressive progress on the knowledge of lepton and quark electroweak couplings over the LEP and SLC decade is reviewed. The experimental methods for measuring the forward-backward asymmetry of charged-fermion pairproduction are described, for different fermion species. The precise measurements of the left-right asymmetry and of tau polarisation at the Z resonance are also reminded. After discussing the determination of the Weinberg electroweak mixing angle, lepton and quark couplings are extracted by combining asymmetry and polarisation measurements with measurements of partial decay widths of the Z boson, performed at LEP in the same years.

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“…The cross section for Compton scattering of circularly polarized photons off longitudinally polarized electrons can be written [11] in the laboratory frame as…”

Section: Polarized Compton Scatteringmentioning

confidence: 99%

The Longitudinal Polarimeter at HERA

Beckmann

Borissov

Brauksiepe

et al. 2002

Nuclear Instruments and Methods in Physics Research Section A:

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The design, construction and operation of a Compton back-scattering laser polarimeter at the HERA storage ring at DESY are described. The device measures the longitudinal polarization of the electron beam between the spin rotators at the HERMES experiment with a fractional systematic uncertainty of 1.6 %. A measurement of the beam polarization to an absolute statistical precision of 0.01 requires typically one minute when the device is operated in the multi-photon mode. The polarimeter also measures the polarization of each individual electron bunch to an absolute statistical precision of 0.06 in approximately five minutes. It was found that colliding and non-colliding bunches can have substantially different polarizations. This information is important to the collider experiments H1 and ZEUS for their future longitudinally polarized electron program because those experiments use the colliding bunches only.

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Polarization phenomena of electrons and photons. I

Cited by 86 publications

References 8 publications

X-Ray Magnetic Circular Dichroism and Compton Scattering: Application to 5f Electron Systems

X-Ray Magnetic Circular Dichroism and Compton Scattering: Application to 5f Electron Systems

Asymmetries at the Z pole: The Quark and Lepton Quantum Numbers

The Longitudinal Polarimeter at HERA

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