Improved Direct Measurement of Leptonic Coupling Asymmetries with Polarized<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">Z</mml:mi></mml:math>Bosons

K, Abe; T, Abe; Адам, И.; Akimoto, H.; Aston, D.; Kg, Baird; Baltay, C.; Band, H. R.; Barklow, T.; Jm, Bauer; Bellodi, G.; Berger, Robert; Blaylock, G.; Bogart,; Gr, Bower; Je, Brau; Breidenbach, M.; Wm, Bugg; Burke, D. L.; Burnett, T. H.; Pn, Burrows; Calcaterra, A.; Cassell, R.; Chou, A.; Ho, Cohn; Ja, Coller; Mr, Convery; Cook,; Rf, Cowan; Crawford, G.; Cj, Damerell; Daoudi, M.; N, De Groot; R, de Sangro; Dn, Dong; Doser, M.; Dubois, R.; Erofeeva, I.; Eschenburg,; Etzion, E.; Fahey, S.; Falciai, D.; Fernández, J. P.; Flood, K. T.; Frey, R.; El, Hart; Hasuko, K.; Hertzbach, S. S.; Me, Huffer; Huynh, X.; Iwasaki, M.; Dj, Jackson; Jacques, P.; Jaros, J. A.; Jiang, ZY; As, Johnson; Johnson, _______; Kajikawa, R.; Kalelkar, M.; Hj, Kang; Rr, Kofler; Rs, Kroeger; Langston, M.; Dw, Leith; Lia,; Lin, C.; Mancinelli, G.; Manly, S.; Mantovani, G.; Tw, Markiewicz; Maruyama, T.; Ak, McKemey; Messner, R.; Kc, Moffeit; Tb, Moore; Morii, M.; Muller, D. R.; Murzin,; Narita, S.; Nauenberg, U.; Neal, H. A.; Nesom, G.; Oishi, N.; Onoprienko, D.; Ls, Osborne; Panvini, R. S.; Ch, Park; Peruzzi, I.; Piccolo, M.; Piemontese, L.; Rj, Plano; Prepost, R.; Cy, Prescott; Bn, Ratcliff; Reidy, J.; Pl, Reinertsen; Ls, Rochester; Pc, Rowson; Jj, Russell; Oh, S.; Schalk, T.; Schumm, B. A.; Schwiening, J.; Vv, Serbo; Shapiro, G.; Nb, Sinev; Snyder, J. A.; Staengle, H.; Stahl, A.; Stamer, P.; Steiner, H.; Su, D.; Suekane, F.; Sugiyama, A.; Suzuki, S.; Swartz, M.; Fe, Taylor; Thom, J.; Torrence, E.; Usher, T.; Va’vra, J.; Verdier, R.; Dl, Wagner; Ap, Waite; Walston, S.; Weidemann, A. W.; Er, Weiss; Whitaker, J. S.; Sh, Williams; Willocq, S.; Wilson, Robert S.; Wisniewski, W. J.; Jl, Wittlin; Woods, M.; Tr, Wright; Yamamoto, R. K.; Yashima, J.; Sj, Yellin; Cc, Young; Yuta, H.

doi:10.1103/physrevlett.86.1162

Cited by 35 publications

(6 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is advantageous because on the one hand A e is proportional to 1 − 4 sin 2 θ eff , and on the other hand sin 2 θ eff is numerically close to 1/4, which results in very high sensitivity to sin 2 θ eff . SLD was able to extract the final-state couplings A b , A c [21], A s [22], A τ and A µ [23] from combined left-right, forward-backward asymmetries, using…”

Section: The Effective Leptonic Weak Mixing Angle From the Z Polementioning

confidence: 99%

“…where, for example, σ f LF is the cross-section for left-handed polarized incident electrons to produce a fermion f traveling in the forward hemisphere. Polarized Bhabba scattering represents mostly a measurement of A LR but it also includes information about A e LR,F B , both of which providing the parameter A e [23]. A e is also proportional to the hadronic asymmetry ratio formed by the forward-backward charge asymmetry, A q F B , normalized to the left-right forward-backward charge asymmetry, A q LR,F B [24].…”

Section: The Effective Leptonic Weak Mixing Angle From the Z Polementioning

confidence: 99%

See 1 more Smart Citation

The weak neutral current

Erler

2013

Progress in Particle and Nuclear Physics

117

View full text Add to dashboard Cite

This is a review of electroweak precision physics with particular emphasis on low-energy precision measurements in the neutral current sector of the electroweak theory and includes future experimental prospects and the theoretical challenges one faces to interpret these observables. Within the minimal Standard Model they serve as determinations of the weak mixing angle which are competitive with and complementary to those obtained near the Z-resonance. In the context of new physics beyond the Standard Model these measurements are crucial to discriminate between models and to reduce the allowed parameter space within a given model. We illustrate this for the minimal supersymmetric Standard Model with or without R-parity.

show abstract

Section: The Effective Leptonic Weak Mixing Angle From the Z Polementioning

confidence: 99%

Section: The Effective Leptonic Weak Mixing Angle From the Z Polementioning

confidence: 99%

The weak neutral current

Erler

2013

Progress in Particle and Nuclear Physics

117

View full text Add to dashboard Cite

show abstract

“…The strongest M H constraints come from asymmetry measurements determining sin 2 θ eff W for leptons [10] at LEP 1 and the SLC [11,12], and from M W at LEP 2 and the Tevatron [13]. The two most precise determinations of sin 2 θ eff W deviate by about 3 σ from each other, but since both are statistics dominated we consider this in the following as a fluctuation.…”

Section: A Electroweak Precision Observablesmentioning

confidence: 99%

Mass of the Higgs boson in the standard electroweak model

Erler

2010

Phys. Rev. D

View full text Add to dashboard Cite

An updated global analysis within the Standard Model (SM) of all relevant electroweak precision and Higgs boson search data is presented with special emphasis on the implications for the Higgs boson mass, MH . Included are, in particular, the most recent results on the top quark and W boson masses, updated and significantly shifted constraints on the strong coupling constant, αs, from τ decays and other low energy measurements such as from atomic parity violation and neutrino deep inelastic scattering. The latest results from searches for Higgs production and decay at the Tevatron are incorporated together with the older constraints from LEP 2. I find a trimodal probability distribution for MH with a fairly narrow preferred 90% CL window, 115 GeV ≤ MH ≤ 148 GeV.

show abstract

“…Beam energy Polarization precision JLab GEp/GMp (1999) 5 1-4 GeV 60% 3% SLAC E154 DIS g1n (1997) 13 48 GeV 82% 2.4% HERMES g1n DIS (2007) 14 30 GeV 55% 2.9% SLAC 122 PV-DIS (1978) 7 16-22 GeV 37% 6% Bates SAMPLE (2000) 15 0.2 GeV 39% 4% MAMI PV-A4 (2004) 16 0.85 GeV 80% 2.1% JLab Qweak (2017) 11 1.2 GeV 88% 0.62% SLD A LR (2000) 17 46.5 GeV 75% 0.5% 1830004-3 Int. J. Mod.…”

Section: Polarimetry Experimentsmentioning

confidence: 99%

Precision electron beam polarimetry for next generation nuclear physics experiments

Aulenbacher

Chudakov

Gaskell

et al. 2018

Int. J. Mod. Phys. E

View full text Add to dashboard Cite

Polarized electron beams have played an important role in scattering experiments at moderate to high beam energies. Historically, these experiments have been primarily targeted at studying hadronic structure -from the quark contribution to the spin structure of protons and neutrons, to nucleon elastic form factors, as well as contributions to these elastic form factors from (strange) sea quarks. Other experiments have aimed to place constraints on new physics beyond the Standard Model. For most experiments, knowledge of the magnitude of the electron beam polarization has not been a limiting systematic uncertainty, with only moderately precise beam polarimetry requirements. However, a new generation of experiments will require extremely precise measurements of the beam polarization, significantly better than 1%. This paper will review standard electron beam polarimetry techniques and possible future technologies, with an emphasis on the ever-improving precision that is being driven by the requirements of electron scattering experiments.

show abstract

Improved Direct Measurement of Leptonic Coupling Asymmetries with PolarizedZBosons

Cited by 35 publications

References 21 publications

The weak neutral current

The weak neutral current

Mass of the Higgs boson in the standard electroweak model

Precision electron beam polarimetry for next generation nuclear physics experiments

Contact Info

Product

Resources

About