CP asymmetry references used by the Charm Subgroup

CP asymmetries in D0 decay modes

Year Experiment CP Asymmetry in the decay mode D0 to π+π- [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2010 CDF M.J. Morello (CDF Collab.), Preprint (CHARM 2010). +0.0022 ± 0.0024 ± 0.0011
2008 BELLE M. Staric et al. (BELLE Collab.), Phys. Lett. B 670, 190 2008). +0.0043 ± 0.0052 ± 0.0012
2008 BABAR B. Aubert et al. (BABAR Collab.), Phys. Rev. Lett. 100, 061803 (2008). -0.0024 ± 0.0052 ± 0.0022
2002 CLEO S.E. Csorna et al. (CLEO Collab.), Phys. Rev. D 65, 092001 (2002). +0.019 ± 0.032 ± 0.008
2000 FOCUS J.M. Link et al. (FOCUS Collab.), Phys. Lett. B 491, 232 (2000). +0.048 ± 0.039 ± 0.025
1998 E791 E.M. Aitala et al. (E791 Collab.), Phys. Lett. B 421, 405 (1998). -0.049 ± 0.078 ± 0.030
. . COMBOS average +0.0020 ± 0.0022
Year Experiment CP Asymmetry in the decay mode D0 to π0π0 [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2001 CLEO G. Bonvicini et al. (CLEO Collab.), Phys. Rev. D 63, 071101 (2001). +0.001 ± 0.048
Year Experiment CP Asymmetry in the decay mode D0 to K0sπ0 [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2011 BELLE B.R. Ko et al. (BELLE Collab.), arXiv:1101.3365v2 (2011). -0.0028 ± 0.0019 ± 0.0010
2001 CLEO G. Bonvicini et al. (CLEO Collab.), Phys. Rev. D 63, 071101 (2001). +0.001 ± 0.013
. . COMBOS average -0.0027 ± 0.0021
Year Experiment CP Asymmetry in the decay mode D0 to K0s&eta [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2011 BELLE B.R. Ko et al. (BELLE Collab.), arXiv:1101.3365v2 (2011). +0.0054 ± 0.0051 ± 0.0016
Year Experiment CP Asymmetry in the decay mode D0 to K0sη' [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2011 BELLE B.R. Ko et al. (BELLE Collab.), arXiv:1101.3365v2 (2011). +0.0098 ± 0.0067 ± 0.0014
Year Experiment CP Asymmetry in the decay mode D0 to K0sK0s [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2001 CLEO G. Bonvicini et al. (CLEO Collab.), Phys. Rev. D 63, 071101 (2001). -0.23 ± 0.19
Year Experiment CP Asymmetry in the decay mode D0 to K+K- [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2011 CDF A. Di Canto (CDF Collab.), Preprint (BEAUTY 2011). -0.0024 ± 0.0022 ± 0.0010
2008 BELLE M. Staric et al. (BELLE Collab.), Phys. Lett. B 670, 190 (2008). -0.0043 ± 0.0030 ± 0.0011
2008 BABAR B. Aubert et al. (BABAR Collab.), Phys. Rev. Lett. 100, 061803 (2008). +0.0000 ± 0.0034 ± 0.0013
2002 CLEO S.E. Csorna et al. (CLEO Collab.), Phys. Rev. D 65, 092001 (2002). +0.000 ± 0.022 ± 0.008
2000 FOCUS J.M. Link et al. (FOCUS Collab.), Phys. Lett. B 491, 232 (2000). -0.001 ± 0.022 ± 0.015
1998 E791 E.M. Aitala et al. (E791 Collab.), Phys. Lett. B 421, 405 (1998). -0.010 ± 0.049 ± 0.012
1995 CLEO J.E. Bartelt et al. (CLEO Collab.), Phys. Rev. D 52, 4860 (1995). +0.080 ± 0.061
1994 E687 P.L. Frabetti et al. (E687 Collab.), Phys. Rev. D 50, 2953 (1994). +0.024 ± 0.084
. . COMBOS average -0.0023 ± 0.0017
Year Experiment CP Asymmetry in the decay mode D0 to π+π-π0 [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2008 BABAR B. Aubert et al. (BABAR Collab.), Phys. Rev. D 78, 051102 (2008). -0.0031 ± 0.0041 ± 0.0017
2008 BELLE K. Arinstein et al. (BELLE Collab.), Phys. Lett. B 662, 102 (2008). +0.0043 ± 0.0130
2005 CLEO D. Cronin-Hennessy et al. (CLEO Collab.), Phys. Rev. D 72, 031102 (2005). +0.01 (+0.09 -0.07) ± 0.05
. . COMBOS average -0.0023 ± 0.0042
Year Experiment CP Asymmetry in the decay mode D0 to K-π+π0 [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2007 CLEO-c S. Dobbs et al. (CLEO Collab.), Phys. Rev. D 76, 112001 (2007). +0.002 ± 0.004 ± 0.008
2001 CLEO S. Kopp et al. (CLEO Collab.), Phys. Rev. D 63, 092001 (2001). -0.031 ± 0.086
. . COMBOS average +0.0016 ± 0.0089
Year Experiment CP Asymmetry in the decay mode D0 to K+π-π0 [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2005 BELLE X.C. Tian et al. (BELLE Collab.), Phys. Rev. Lett. 95, 231801 (2005). -0.006 ± 0.053
2001 CLEO G. Brandenburg et al. (CLEO Collab.), Phys. Rev. Lett. 87, 071802 (2001). +0.09 (+0.25 -0.22)
. . COMBOS average -0.0014 ± 0.0517
Year Experiment CP Asymmetry in the decay mode D0 to K0sπ+π- [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2004 CLEO D.M. Asner et al. (CLEO Collab.), Phys. Rev. D 70, 091101 (2004). -0.009 ± 0.021 (+0.016 -0.057)
Year Experiment CP Asymmetry in the decay mode D0 to K-K+π0 [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2008 BABAR B. Aubert et al. (BABAR Collab.), Phys. Rev. D 78, 051102 (2008). +0.0100 ± 0.0167 ± 0.0025
Year Experiment CP Asymmetry in the decay mode D0 to K+π-π+π- [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2005 BELLE X.C. Tian et al. (BELLE Collab.), Phys. Rev. Lett. 95, 231801 (2005). -0.018 ± 0.044
Year Experiment CP Asymmetry in the decay mode D0 to K+K-π+π- [Γ(D0)-Γ(D0bar)]/[Γ(D0)+Γ(D0bar)]
2005 FOCUS J.M. Link et al. (FOCUS Collab.), Phys. Lett. B 622, 239 (2005). -0.082 ± 0.056 ± 0.047

CP LIFETIME asymmetries in D0 decay modes
see link Results for D0-D0bar Mixing (assuming CP conservation) for more details.

Year Experiment CP Lifetime asymmetry in the decay modes D0 to K+K- and π+π- [τ(D0bar)-τ(D0)]/[τ(D0bar)+τ(D0)]
2008 BABAR B. Aubert et al. (BABAR Collab.), Phys. Rev. D 78, 011105 (2008). +0.00260 ± 0.00360 ± 0.00080
2007 BELLE M. Staric et al. (BELLE Collab.), Phys. Rev. Lett. 98, 211803 (2007). +0.00010 ± 0.00300 ± 0.00150
. . COMBOS average +0.00123 ± 0.00248

CP asymmetries in D+ decay modes

Year Experiment CP Asymmetry in the decay mode D+ to μ+ν [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
2008 CLEO-c B.I. Eisenstein et al. (CLEO Collab.), Phys. Rev. D 78, 052003 (2008). +0.08 ± 0.08
Year Experiment CP Asymmetry in the decay mode D+ to K0sπ+ [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
2011 BABAR P. del Amo Sanchez et al. (BABAR Collab.), Phys. Rev. D 83, 071103 (2011). -0.0044 ± 0.0013 ± 0.0010
2010 BELLE B.R. Ko et al. (BELLE Collab.), Phys. Rev. Lett. 104, 181602 (2010). -0.0071 ± 0.0019 ± 0.0020
2007 CLEO-c S. Dobbs et al. (CLEO Collab.), Phys. Rev. D 76, 112001 (2007). -0.006 ± 0.010 ± 0.003
2002 FOCUS J.M. Link et al. (FOCUS Collab.), Phys. Rev. Lett. 88, 041602 (2002). -0.016 ± 0.015 ± 0.009
. . COMBOS average -0.0052 ± 0.0014
Year Experiment CP Asymmetry in the decay mode D+ to K0sK+ [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
2010 BELLE B.R. Ko et al. (BELLE Collab.), Phys. Rev. Lett. 104, 181602 (2010). -0.0016 ± 0.0058 ± 0.0025
2002 FOCUS J.M. Link et al. (FOCUS Collab.), Phys. Rev. Lett. 88, 041602 (2002). +0.071 ± 0.061 ± 0.012
. . COMBOS average -0.0009 ± 0.0063
Year Experiment CP Asymmetry in the decay mode D+ to π+π-π+ [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
1997 E791 E.M. Aitala et al. (E791 Collab.), Phys. Lett. B 403, 377 (1997). -0.017 ± 0.042
Year Experiment CP Asymmetry in the decay mode D+ to K-π+π+ [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
2007 CLEO-c S. Dobbs et al. (CLEO Collab.), Phys. Rev. D 76, 112001 (2007). -0.005 ± 0.004 ± 0.009
Year Experiment CP Asymmetry in the decay mode D+ to K0sπ+π0 [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
2007 CLEO-c S. Dobbs et al. (CLEO Collab.), Phys. Rev. D 76, 112001 (2007). +0.003 ± 0.009 ± 0.003
Year Experiment CP Asymmetry in the decay mode D+ to K+K-π+ [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
2008 CLEO-c P. Rubin et al. (CLEO Collab.), Phys. Rev. D 78, 072003 (2008). -0.0003 ± 0.0084 ± 0.0029
2005 BABAR B. Aubert et al. (BABAR Collab.), Phys. Rev. D71, 091101 (2005). +0.014 ± 0.010 ± 0.008
2000 FOCUS J.M. Link et al. (FOCUS Collab.), Phys. Lett. B 491, 232 (2000). +0.006 ± 0.011 ± 0.005
1997 E791 E.M. Aitala et al. (E791 Collab.), Phys. Lett. B 403, 377 (1997). -0.014 ± 0.029
1994 E687 P.L. Frabetti et al. (E687 Collab.), Phys. Rev. D 50, 2953 (1994). -0.031 ± 0.068
. . COMBOS average +0.0039 ± 0.0061
Year Experiment CP Asymmetry in the decay mode D+ to K-π+π+π0 [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
2007 CLEO-c S. Dobbs et al. (CLEO Collab.), Phys. Rev. D 76, 112001 (2007). +0.010 ± 0.009 ± 0.009
Year Experiment CP Asymmetry in the decay mode D+ to K0sπ+π+π- [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
2007 CLEO-c S. Dobbs et al. (CLEO Collab.), Phys. Rev. D 76, 112001 (2007). +0.001 ± 0.011 ± 0.006
Year Experiment CP Asymmetry in the decay mode D+ to K0sK+π+π- [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
2005 FOCUS J.M. Link et al. (FOCUS Collab.), Phys. Lett. B 622, 239 (2005). -0.042 ± 0.064 ± 0.022

CP asymmetries in Ds decay modes

Year Experiment CP Asymmetry in the decay mode Ds+ to μ+ν [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2009 CLEO-c J.P. Alexander et al. (CLEO Collab.), Phys. Rev. D 79, 052001 (2009). +0.048 ± 0.061
Year Experiment CP Asymmetry in the decay mode Ds+ to π+η [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2008 CLEO-c J.P. Alexander et al. (CLEO Collab.), Phys. Rev. Lett. 100, 161804 (2008). -0.082 ± 0.052 ± 0.008
Year Experiment CP Asymmetry in the decay mode Ds+ to π+η' [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2008 CLEO-c J.P. Alexander et al. (CLEO Collab.), Phys. Rev. Lett. 100, 161804 (2008). -0.055 ± 0.037 ± 0.012
Year Experiment CP Asymmetry in the decay mode Ds+ to K0sπ+ [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2010 BELLE B.R. Ko et al. (BELLE Collab.), Phys. Rev. Lett. 104, 181602 (2010). +0.0545 ± 0.0250 ± 0.0033
2007 CLEO-c G.S. Adams et al. (CLEO Collab.), Phys. Rev. Lett. 99, 191805 (2007). +0.27 ± 0.11
. . COMBOS average +0.0653 ± 0.0246
Year Experiment CP Asymmetry in the decay mode Ds+ to K+π0 [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2007 CLEO-c G.S. Adams et al. (CLEO Collab.), Phys. Rev. Lett. 99, 191805 (2007). +0.02 ± 0.29
Year Experiment CP Asymmetry in the decay mode Ds+ to K+η [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2007 CLEO-c G.S. Adams et al. (CLEO Collab.), Phys. Rev. Lett. 99, 191805 (2007). -0.20 ± 0.18
Year Experiment CP Asymmetry in the decay mode Ds+ to K+η' [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2007 CLEO-c G.S. Adams et al. (CLEO Collab.), Phys. Rev. Lett. 99, 191805 (2007). -0.17 ± 0.37
Year Experiment CP Asymmetry in the decay mode Ds+ to K+K0s [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2010 BELLE B.R. Ko et al. (BELLE Collab.), Phys. Rev. Lett. 104, 181602 (2010). +0.0012 ± 0.0036 ± 0.0022
2008 CLEO-c J.P. Alexander et al. (CLEO Collab.), Phys. Rev. Lett. 100, 161804 (2008). +0.049 ± 0.021 ± 0.009
. . COMBOS average +0.0028 ± 0.0041
Year Experiment CP Asymmetry in the decay mode Ds+ to π+π+π- [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2008 CLEO-c J.P. Alexander et al. (CLEO Collab.), Phys. Rev. Lett. 100, 161804 (2008). +0.020 ± 0.046 ± 0.007
Year Experiment CP Asymmetry in the decay mode Ds+ to K+π+π- [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2008 CLEO-c J.P. Alexander et al. (CLEO Collab.), Phys. Rev. Lett. 100, 161804 (2008). +0.112 ± 0.070 ± 0.009
Year Experiment CP Asymmetry in the decay mode Ds+ to K+K-π+ [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2008 CLEO-c J.P. Alexander et al. (CLEO Collab.), Phys. Rev. Lett. 100, 161804 (2008). +0.003 ± 0.011 ± 0.008
Year Experiment CP Asymmetry in the decay mode Ds+ to K0sK-π+π+ [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2008 CLEO-c J.P. Alexander et al. (CLEO Collab.), Phys. Rev. Lett. 100, 161804 (2008). -0.007 ± 0.036 ± 0.011
Year Experiment CP Asymmetry in the decay mode Ds+ to K+K-π+π0 [Γ(Ds+)-Γ(Ds-)]/[Γ(Ds+)+Γ(Ds-)]
2008 CLEO-c J.P. Alexander et al. (CLEO Collab.), Phys. Rev. Lett. 100, 161804 (2008). -0.059 ± 0.042 ± 0.012

Last modified 20 June 2011. Send comments to D. Pedrini