Detector Bias Study for a CP Asymmetry Analysis in Rare B Meson Decays
- Authors
- Unno, Yuuji; Cheon, ByungGu
- Issue Date
- Nov-2010
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Meson decays; CP asymmetry; Detector bias
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.57, no.5, pp.1177 - 1182
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 57
- Number
- 5
- Start Page
- 1177
- End Page
- 1182
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/173491
- DOI
- 10.3938/jkps.57.1177
- ISSN
- 0374-4884
- Abstract
- We describe a detector bias analysis for the charge asymmetry between high momentum track combinations of K(+)pi(-) and K(-)pi(+) by using a D*(+)-tagged D(0) -> hh (h = K/pi) and K(S)(0)pi(0) sample based on the data set collected by the Belle detector at a asymmetric-energy e(+)e(-) collider named the KEKB factory. This detecor bias analysis is crucial for A(CP)(B(0) -> K(+)pi(-)) charge-parity (CP) asymmetry measurements to observe direct CP violation in rare B meson weak decays. We estimate the systematic error from detector bias to be -0.0053 +/- 0.0081.
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