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)]
2008 BELLE M. Staric et al. (BELLE Collab.), Preprint arXiv:0807.0148 (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
2005 CDF D. Acosta et al. (CDF Collab.), Phys. Rev. Lett. 94, 122001 (2005). +0.010 ± 0.013 ± 0.006
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), Erratum-ibid. B495: 443 (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 +0.0022 ± 0.0037
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)]
2001 CLEO G. Bonvicini et al. (CLEO Collab.), Phys. Rev. D 63, 071101 (2001). +0.001 ± 0.013
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)]
2008 BELLE M. Staric et al. (BELLE Collab.), Preprint arXiv:0807.0148 (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
2005 CDF D. Acosta et al. (CDF Collab.), Phys. Rev. Lett. 94, 122001 (2005). +0.020 ± 0.012 ± 0.006
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), Erratum-ibid. B495: 443 (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 -0.0016 ± 0.0023
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.), Preprint arXiv:0802.4035 (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). +0.001 (+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.), Preprint arXiv:0802.4035 (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)]
2007 BELLE M. Staric et al. (BELLE Collab.), Phys. Rev. Lett. 98, 211803 (2007). +0.00010 ± 0.00300 ± 0.00150
2007 BABAR B. Aubert et al. (BABAR Collab.), Preprint arXiv:0712.2249 (2007). +0.00260 ± 0.00360 ± 0.00080
. . COMBOS average +0.00123 ± 0.00248

CP asymmetries in D+ decay modes

Year Experiment CP Asymmetry in the decay mode D+ to K0sπ+ [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
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), Erratum-ibid. 88: 159903(2002). -0.016 ± 0.015 ± 0.009
. . COMBOS average -0.0086 ± 0.0090
Year Experiment CP Asymmetry in the decay mode D+ to K0sK+ [Γ(D+)-Γ(D-)]/[Γ(D+)+Γ(D-)]
2002 FOCUS J.M. Link et al. (FOCUS Collab.), Phys. Rev. Lett. 88, 041602 (2002), Erratum-ibid. 88: 159903(2002). +0.071 ± 0.061 ± 0.012
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-)]
2007 CLEO-c S. Dobbs et al. (CLEO Collab.), Phys. Rev. D 76, 112001 (2007). -0.001 ± 0.015 ± 0.008
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), Erratum-ibid. B495: 443 (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 +0.0059 ± 0.0075
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

Last modified 15 Jul 2008. Send comments to D. Pedrini