Measurement of time-dependent CP asymmetry in B^0→K_S^0π^0γ decays

Aubert, B. and Cheng, C. H. and Doll, D. A. and Echenard, B. and Fang, F. and Hitlin, D. G. and Narsky, I. and Piatenko, T. and Porter, F. C. (2008) Measurement of time-dependent CP asymmetry in B^0→K_S^0π^0γ decays. Physical Review D, 78 (7). Art. No. 071102. ISSN 2470-0010. doi:10.1103/PhysRevD.78.071102. https://resolver.caltech.edu/CaltechAUTHORS:20100623-105110660

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Abstract

We measure the time-dependent CP asymmetry in B^0→K_S^0π^0γ decays for two regions of K_S^0-π^0 invariant mass, m(KS0π0), using the final BABAR data set of 467×10^6 BB pairs collected at the PEP-II e^+e^- collider at SLAC. We find 339±24 B^0→K^(*0)γ candidates and measure S_(K*γ)=-0.03±0.29±0.03 and C_(K*_γ)=-0.14±0.16±0.03. In the range 1.1<m(K_S^0π^0)<1.8 GeV/c^2 we find 133±20 B^0→K_S^0π^0γ candidates and measure S_(KS^0π^0γ)=-0.78±0.59±0.09 and C_(KS^0π^0γ)=-0.36±0.33±0.04. The uncertainties are statistical and systematic, respectively.

Item Type:

Article

Related URLs:

URL	URL Type	Description
http://dx.doi.org/10.1103/PhysRevD.78.071102	DOI	Article
http://link.aps.org/doi/10.1103/PhysRevD.78.071102	Publisher	Article

ORCID:

Author	ORCID
Cheng, C. H.	0000-0002-8382-0447
Hitlin, D. G.	0000-0003-4028-6982
Porter, F. C.	0000-0003-1948-8889

Additional Information:

© 2008 The American Physical Society. Received 19 July 2008; published 13 October 2008. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MEC (Spain), and STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation.

Funders:

Funding Agency	Grant Number
Department of Energy	UNSPECIFIED
NSF	UNSPECIFIED
Natural Sciences and Engineering Research Council (Canada)	UNSPECIFIED
Commissariat à l'Énergie Atomique (French Atomic Energy Commission)	UNSPECIFIED
Centre National de la Recherche Scientifique (National Center for Scientific Research, France) Institut National de Physique Nucléaire et Physique des Particules (France)	UNSPECIFIED
Bundesministerium für Bildung und Forschung (German: Federal Ministry of Education and Research; Bonn, Germany)	UNSPECIFIED
Deutsche Forschungsgemeinschaft (German Research Council)	UNSPECIFIED
Istituto Nazionale di Fisica Nucleare, Italy	UNSPECIFIED
Foundation for Fundamental Research on Matter (The Netherlands)	UNSPECIFIED
Research Council of Norway	UNSPECIFIED
Ministry of Education and Science of the Russian Federation	UNSPECIFIED
Ministerio de Educación y Ciencia (Spain: Ministry for Education and Science)	UNSPECIFIED
Science and Technology Facilities Council (UK)	UNSPECIFIED
Marie Curie EIF (European Union)	UNSPECIFIED
A. P. Sloan Foundation	UNSPECIFIED

Issue or Number:

Classification Code:

PACS: 13.20.He, 11.30.Er, 14.40.Nd

DOI:

10.1103/PhysRevD.78.071102

Record Number:

CaltechAUTHORS:20100623-105110660

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20100623-105110660

Usage Policy:

No commercial reproduction, distribution, display or performance rights in this work are provided.

ID Code:

18770

Collection:

CaltechAUTHORS

Deposited By:

Ruth Sustaita

Deposited On:

23 Jun 2010 20:33

Last Modified:

08 Nov 2021 23:46

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