scholarly journals A liquid hydrogen target for the precision measurement of the weak mixing angle in Møller scattering at SLAC

2003 ◽  
Vol 498 (1-3) ◽  
pp. 90-100 ◽  
Author(s):  
J. Gao ◽  
K.K. Gustafsson ◽  
R. Carr ◽  
C.E. Jones ◽  
R.D. McKeown ◽  
...  
Keyword(s):  
Precision Measurement ◽  
Liquid Hydrogen ◽  
Weak Mixing Angle ◽  
Liquid Hydrogen Target ◽  
Weak Mixing ◽  
Hydrogen Target ◽  
Mixing Angle ◽  
Moller Scattering

scholarly journals Precision Measurement of the Weak Mixing Angle in Møller Scattering

2005 ◽  
Vol 95 (8) ◽  
Author(s):  
P. L. Anthony ◽  
R. G. Arnold ◽  
C. Arroyo ◽  
K. Bega ◽  
J. Biesiada ◽  
...  
Keyword(s):  
Precision Measurement ◽  
Weak Mixing Angle ◽  
Weak Mixing ◽  
Mixing Angle ◽  
Moller Scattering

PRECISION MEASUREMENTS OF PARITY VIOLATION AND THE WEAK MIXING ANGLE IN MØLLER SCATTERING

2005 ◽  
Vol 20 (15) ◽  
pp. 3359-3361
Author(s):  
◽  
WALED S. EMAM
Keyword(s):  
Precise Measurement ◽  
Target Electron ◽  
Fixed Target ◽  
Weak Mixing Angle ◽  
Weak Mixing ◽  
Weak Charge ◽  
Mixing Angle ◽  
Moller Scattering ◽  
The Standard Model

We report an observation of a parity-violating asymmetry in fixed target electron-electron (Møller) scattering at a four-momentum transfer Q2 = 0.03 ( GeV/c )2. This is a most precise measurement of parity nonconservation to date, and leads to a determination of the electron's weak charge and of the value of the effective weak mixing angle [Formula: see text], which is consistent with the Standard Model expectation at the current level of precision. The comparison between the measurements of the weak mixing angle at Q2 = 0.03 ( GeV/c )2 and at the Z0 pole establishes the running of sin 2θW with 6.5σ significance.

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