Using U spin to extract $\gamma$ from charmless $B \to PPP$ decays - INSPIRE

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Using U spin to extract $\gamma$ from charmless $B \to PPP$ decays

Bhubanjyoti Bhattacharya
(
- Montreal U.
)
,
David London
(
- Montreal U.
)

Mar 2, 2015

15 pages

Published in:

JHEP 04 (2015) 154

Published: Apr 28, 2015

e-Print:

1503.00737 [hep-ph]

DOI:

10.1007/JHEP04(2015)154

Report number:

UdeM-GPP-TH-15-240,
UDEM-GPP-TH-15-240

View in:

ADS Abstract Service

reference search21 citations

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Abstract: (Springer)

Some years ago, a method was proposed for measuring the CP-violating phase γ using pairs of two-body decays that are related by U-spin reflection (d ↔ s). In this paper we adapt this method to charmless B → PPP decays. Time-dependent Dalitz-plot analyses of these three-body decays are required for the measurement of the mixing-induced CP asymmetries. However, isobar analyses of the decay amplitudes are not necessary. A potential advantage of using three-body decays is that the effects of U-spin breaking may be reduced by averaging over the Dalitz plot. This can be tested independently using the measurements of direct CP asymmetries and branching ratios in three-body charged B decays.

Note:

16 pages, no figures; Revised text; Version accepted for publication in JHEP

B-Physics
CP violation
CP: violation
phase: CP
asymmetry: CP
B: decay
Dalitz plot
time dependence
final state: (0charm)
B --> K0(S) pi+ pi-

References(33)

Figures(0)

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