کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1831805 1027505 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimal detectors for WIMP and 0–ν ββ searches: Identical high-pressure xenon gas TPCs?
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Optimal detectors for WIMP and 0–ν ββ searches: Identical high-pressure xenon gas TPCs?
چکیده انگلیسی

A time projection chamber (TPC) filled with high-pressure gaseous xenon (HPXe)—instead of liquid xenon (LXe)—appears likely to offer both superior energy resolution for the 0–ν ββ decay search in 136Xe and superior γ-background rejection in the search for WIMPs. An augmentation to maximize the primary scintillation detection efficiency of the 0–ν ββ decay detector design will realize an optimum design for both purposes. In this scenario an attractive synergy exists: two identical HPXe TPCs differing only in isotopic content will provide significantly more robust evidence for the existence of either signal if present. A simple analysis of important factors that limit energy resolution leads to the conclusion that the optimal design for either next-generation search at the few hundred kg level is the same HPXe-based TPC. A careful measurement of the scintillation and ionization responses of HPXe to nuclear and electronic recoils is needed to test the claim of HPXe superiority to LXe for the combined goals.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 581, Issue 3, 1 November 2007, Pages 632–642
نویسندگان
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