کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9845391 | 1526513 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A method for an improved measurement of the electron-antineutrino correlation in free neutron beta decay
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A method for an improved measurement of the electron-antineutrino correlation in free neutron beta decay A method for an improved measurement of the electron-antineutrino correlation in free neutron beta decay](/preview/png/9845391.png)
چکیده انگلیسی
The angular correlation between the beta electron and antineutrino in nuclear beta decay is characterized by the dimensionless parameter a. The value of a for free neutron decay, when combined with other neutron decay parameters, can be used to determine the weak vector and axial vector coupling constants gV and gA and test the validity and self-consistency of the Electroweak Standard Model. Previous experiments that measured a in neutron decay relied on precise proton spectroscopy and were limited by systematic effects at about the 5% level. We present a new approach to measuring a for which systematic uncertainties promise to be much smaller.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 545, Issues 1â2, 11 June 2005, Pages 181-193
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 545, Issues 1â2, 11 June 2005, Pages 181-193
نویسندگان
F.E. Wietfeldt, B.M. Fisher, C. Trull, G.L. Jones, B. Collet, L. Goldin, B.G. Yerozolimsky, R. Wilson, S. Balashov, Yu. Mostovoy, A. Komives, M. Leuschner, J. Byrne, F.B. Bateman, M.S. Dewey, J.S. Nico, A.K. Thompson,