کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8185503 | 1528090 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An Improved Measurement of Electron Antineutrino Disappearance at Daya Bay
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An Improved Measurement of Electron Antineutrino Disappearance at Daya Bay An Improved Measurement of Electron Antineutrino Disappearance at Daya Bay](/preview/png/8185503.png)
چکیده انگلیسی
The theory of neutrino oscillations explains changes in neutrino flavor, count rates, and spectra from solar, atmospheric, accelerator, and reactor neutrinos. These oscillations are characterized by three mixing angles and two mass-squared differences. The solar mixing angle, θ12, and the atmospheric mixing angle, θ23, have been well measured, but until recently the neutrino mixing angle θ13 was not well known. The Daya Bay experiment, located northeast of Hong Kong at the Guangdong Nuclear Power Complex in China, has made a precise measurement of electron antineutrino disappearance using six functionally-identical gadolinium-doped liquid scintillator-based detectors at three sites with distances between 364 and 1900 meters from six reactor cores. This proceeding describes the Daya Bay updated result, using 127 days of good run time collected between December 24, 2011 and May 11, 2012. For the far site, the ratio of the observed number of events to the expected number of events assuming no neutrino oscillation is 0.944±0.007(stat)±0.003(syst). A fit for θ13 in the three-neutrino framework yields sin22θ13=0.089±0.010(stat)±0.005(syst).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Proceedings Supplements - Volume 233, December 2012, Pages 96-101
Journal: Nuclear Physics B - Proceedings Supplements - Volume 233, December 2012, Pages 96-101
نویسندگان
David M. Webber, the Daya Bay Collaboration the Daya Bay Collaboration,