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SLAC E-158 is an experiment designed to make the first measurement of parity violation in Moller scattering. E-158 will measure the right-left cross-section asymmetry, A_LR^Moller, in the elastic scattering of a 45-GeV polarized electron…

The E158 experiment at SLAC has made the first measurement of parity violation in electron-electron (Moller) scattering. We report a preliminary result using 50% of the accumulated data sample for the right-left parity-violating…

High Energy Physics - Experiment · Physics 2019-08-14 M. Woods

Experiment E158 at SLAC can measure an azimuthal asymmetry in single-spin, transversely polarized Moller scattering, e^{-\uparrow} e^- -> e^- e^-, which arises from a QED rescattering phase. We recompute the leading-order (one-loop)…

High Energy Physics - Phenomenology · Physics 2014-11-17 Lance Dixon , Marc Schreiber

We compute a full set of the first order QED corrections to the parity-violating observables in polarized Moller scattering. We employ a covariant method of removing infrared divergences, computing corrections without introducing any…

High Energy Physics - Phenomenology · Physics 2007-05-23 Vladimir A. Zykunov , Juan Suarez , Brock A. Tweedie , Yury G. Kolomensky

The utility of polarized electron beams for precision electroweak studies is described. Parity violating Moller scattering asymmetries in e-e- --> e-e- are discussed. Effects of electroweak radiative corrections and the running…

High Energy Physics - Phenomenology · Physics 2015-06-25 Andrzej Czarnecki , William J. Marciano

We report a measurement of the parity-violating asymmetry in fixed target electron-electron (Moller) scattering: A_PV = -175 +/- 30 (stat.) +/- 20 (syst.) parts per billion. This first direct observation of parity nonconservation in Moller…

High Energy Physics - Experiment · Physics 2010-03-19 the SLAC E158 Collaboration , P. L. Anthony

The physics case and an experimental overview of the MOLLER (Measurement Of a Lepton Lepton Electroweak Reaction) experiment at the 12 GeV upgraded Jefferson Lab are presented. A highlight of the Fundamental Symmetries subfield of the 2007…

Nuclear Experiment · Physics 2014-12-04 MOLLER Collaboration , J. Benesch , P. Brindza , R. D. Carlini , J-P. Chen , E. Chudakov , S. Covrig , M. M. Dalton , A. Deur , D. Gaskell , A. Gavalya , J. Gomez , D. W. Higinbotham , C. Keppel , D. Meekins , R. Michaels , B. Moffit , Y. Roblin , R. Suleiman , R. Wines , B. Wojtsekhowski , G. Cates , D. Crabb , D. Day , K. Gnanvo , D. Keller , N. Liyanage , V. V. Nelyubin , H. Nguyen , B. Norum , K. Paschke , V. Sulkosky , J. Zhang , X. Zheng , J. Birchall , P. Blunden , M. T. W. Gericke , W. R. Falk , L. Lee , J. Mammei , S. A. Page , W. T. H. van Oers , K. Dehmelt , A. Deshpande , N. Feege , T. K. Hemmick , K. S. Kumar , T. Kutz , R. Miskimen , M. J. Ramsey-Musolf , S. Riordan , N. Hirlinger Saylor , J. Bessuille , E. Ihloff , J. Kelsey , S. Kowalski , R. Silwal , G. De Cataldo , R. De Leo , D. Di Bari , L. Lagamba , E. NappiV. Bellini , F. Mammoliti , F. Noto , M. L. Sperduto , C. M. Sutera , P. Cole , T. A. Forest , M. Khandekar , D. McNulty , K. Aulenbacher , S. Baunack , F. Maas , V. Tioukine , R. Gilman , K. Myers , R. Ransome , A. Tadepalli , R. Beniniwattha , R. Holmes , P. Souder , D. S. Armstrong , T. D. Averett , W. Deconinck , W. Duvall , A. Lee , M. L. Pitt , J. A. Dunne , D. Dutta , L. El Fassi , F. De Persio , F. Meddi , G. M. Urciuoli , E. Cisbani , C. Fanelli , F. Garibaldi , K. Johnston , N. Simicevic , S. Wells , P. M. King , J. Roche , J. Arrington , P. E. Reimer , G. Franklin , B. Quinn , A. Ahmidouch , S. Danagoulian , O. Glamazdin , R. Pomatsalyuk , R. Mammei , J. W. Martin , T. Holmstrom , J. Erler , Yu. G. Kolomensky , J. Napolitano , K. A. Aniol , W. D. Ramsay , E. Korkmaz , D. T. Spayde , F. Benmokhtar , A. Del Dotto , R. Perrino , S. Barkanova , A. Aleksejevs , J. Singh

The SLAC PES, developed in the early 1990s for the SLC, has been in continuous use since 1992, during which time it has undergone numerous upgrades. The upgrades include improved cathodes with their matching laser systems, modified…

Accelerator Physics · Physics 2009-11-07 J. E. Clendenin , A. Brachmann , T. Galetto , D. -A. Luh , T. Maruyama , J. Sodja , J. L. Turner

The SLAC Linear Collider has been colliding a polarized electron beam with an unpolarized positron beam at the Z^0 resonance for the SLD experiment since 1992. An electron beam polarization of close to 80% has been achieved for the…

High Energy Physics - Experiment · Physics 2007-05-23 M. Woods

For the 1994/95 run of the SLD experiment at SLAC, a Compton polarimeter measured the luminosity-weighted electron beam polarization to be (77.2 +- 0.5)%. This excellent accuracy is achieved by measuring the rate asymmetry of…

High Energy Physics - Experiment · Physics 2007-05-23 M. Woods , representing the SLD collaboration

Parity-violating asymmetries in polarized electron scattering have been interpreted as the asymmetries between opposite helicities of incoming fermion based on the approximation of the spin polarization operator. Here exact calculations of…

High Energy Physics - Phenomenology · Physics 2008-11-25 J. C. Yoon

The general features of the Moller scattering and its use as an electron polarimeter are described and studied in view of the planned future high energy e^+e^- linear colliders. In particular the study concentrates on the TESLA collider…

High Energy Physics - Experiment · Physics 2015-06-25 Gideon Alexander , Iuliana Cohen

The precision physics program of the ILC requires precise knowledge of the state of beam polarisation. In fact the Compton polarimeters intended for the ILC will have to measure the polarisation with error a factor of 2 smaller than the…

Instrumentation and Detectors · Physics 2014-11-20 Christoph Bartels , Anthony Hartin , Christian Helebrant , Daniela Kaefer , Jenny List

We present the first measurement of the left-right asymmetry in Bhabha scattering with a polarized electron beam. The effective electron vector and axial vector couplings to the Z0 are extracted from a combined analysis of the polarized…

High Energy Physics - Experiment · Physics 2012-08-27 the SLD Collaboration

We present a calculation of the complete $O(\alpha)$ electroweak radiative corrections to the Moller scattering process e^-e^- -> e^-e^-, including hard bremsstrahlung contributions. We study the effects of these corrections on both the…

High Energy Physics - Phenomenology · Physics 2009-11-07 F. J. Petriello

We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from the proton. The result is A = -15.05 +- 0.98(stat) +- 0.56(syst) ppm at the kinematic point theta_lab = 12.3 degrees and Q^2 =…

Nuclear Experiment · Physics 2010-05-27 HAPPEX collaboration , K. A. Aniol

An apparatus for measuring parity-violating asymmetries in gamma-ray emission following polarized cold neutron capture was constructed as a 1/10th scale test of the design for the forthcoming n+p->d+gamma experiment at LANSCE. The elements…

In 1992, L.G. Levchuk noted that the asymmetries measured in M\o ller scattering polarimeters could be significantly affected by the intrinsic momenta of the target electrons. This effect is largest in devices with very small acceptance or…

High Energy Physics - Experiment · Physics 2009-10-22 M. Swartz , H. R. Band , F. J. Decker , P. Emma , M. J. Fero , R. Frey , R. King , A. Lath , T. Limberg , R. Prepost , P. C. Rowson , B. A. Schumm , M. Woods , M. Zolotorev

In this paper, we study the effects of the unparticles on the parity-violating asymmetry for the low energy electron-electron scattering, $e^-e^-\to e^-e^-$. Using the data from the E158 experiment at SLAC we extract the limits on the…

High Energy Physics - Phenomenology · Physics 2009-02-23 K. O. Ozansoy

High-precision electroweak experiments such as parity-violating Moller scattering can provide indirect access to physics at multi-TeV scales and play an important complementary role to the LHC research program. However, before physics of…

High Energy Physics - Phenomenology · Physics 2013-01-09 A. Aleksejevs , S. Barkanova , E. Kuraev , V. Zykunov
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