• Corpus ID: 118692110

# Nonleptonic Charm Decays and CP Violation

@article{Bhattacharya2012NonleptonicCD,
title={Nonleptonic Charm Decays and CP Violation},
author={Bhubanjyoti Bhattacharya and Michael Gronau and Jonathan L Rosner},
journal={arXiv: High Energy Physics - Phenomenology},
year={2012}
}
• Published 26 July 2012
• Physics
• arXiv: High Energy Physics - Phenomenology
In this talk we briefly present a flavor-SU(3) technique to study branching ratios and direct CP asymmetries $D$-meson decays. The first part of the talk is meant to set up a foundation, based on previous work, to deal with flavor-SU(3) amplitudes and relative strong phases. In addition, we present a model for dealing with SU(3)-breaking in branching ratio measurements of SCS $D^0$ decays. In the second part of the talk we make use of a proposal for an enhanced CP-violating penguin in the SM…
5 Citations

## Figures and Tables from this paper

### Direct CP Violation in Nonleptonic Charm Decays

LHCb, CDF and most recently Belle have observed a large difference between direct CP asymmetries in $D^0\to K^+K^-$ and $D^0\to\pi^+\pi^-$. We use the measured value of $\Delta A_{CP}$ to constrain

### Shift in weak phase γ due to CP asymmetries in D decays to two pseudoscalar mesons

• Physics
• 2013
A difference of several tenths of a percent has been observed between the direct CP asymmetries of $D^0\to K^+K^-$ and $D^0\to \pi^+\pi^-$. It has been noted recently that CP asymmetries in such

### Sum Rules of Charm CP Asymmetries beyond the SU(3)_{F} Limit.

• Physics
Physical review letters
• 2015
New sum rules are found between direct CP asymmetries in D meson decays with coefficients that can be determined from a global fit to branching ratio data and consistently include first-order SU(3)_{F} breaking in the topological amplitudes extracted from the branching ratios.

### Flavor SU(3) in Cabibbo-favored D-meson decays

• Physics
Journal of High Energy Physics
• 2021
Abstract Model-independent description of nonleptonic decays of charmed mesons is a challenging task due to large nonperturbative effects of strong interactions on the transition amplitudes. We

### The Belle II Physics Book

• Physics
Progress of Theoretical and Experimental Physics
• 2020
We present the physics program of the Belle II experiment, located on the intensity frontier SuperKEKB e+e- collider. Belle II collected its first collisions in 2018, and is expected to operate for

## References

SHOWING 1-10 OF 43 REFERENCES

### Direct CP Violation in D -> hh Decays

Evidence of CP violation in the charm sector has been observed recently by the LHCb and CDF Collaborations. The issue of whether it can be accommodated within the standard model (SM) is examined in

### Direct CP Violation in D Decays in view of LHCb and CDF Results

• Physics
• 2012
The LHCb and CDF Collaborations have recently reported evidence for a CP asymmetry around -0.7% in $\Delta A_{CP}$, the difference between $A_{CP}(D^0 \to K^+ K^-)$ and $A_{CP}(D^0 \to \pi^+\pi^-)$.

### Two-body hadronic charmed meson decays

• Materials Science
• 2010
In this work we study the two-body hadronic charmed meson decays, including both the $PP$ and $VP$ modes. The latest experimental data are first analyzed in the diagrammatic approach. The magnitudes

### Size of direct CP violation in singly Cabibbo-suppressed D decays

• Physics
• 2012
The first experimental evidence for direct CP violation in charm-quark decays has recently been presented by the LHCb collaboration in the difference between the D -> K+ K- and D -> pi+ pi-

### Direct CP violation in two-body hadronic charmed meson decays

• Materials Science, Physics
• 2012
Motivated by the recent observation of $CP$ violation in the charm sector by LHCb, we study direct $CP$ asymmetries in the standard model (SM) for the singly Cabibbo-suppressed two-body hadronic

### SU(3) symmetry breaking and CP violation in D -> PP decays

• Physics
• 2012
Evidence of CP violation in the charm sector has been observed recently by the LHCb and CDF Collaborations. Adopting the topological diagram approach, we study flavor SU(3) symmetry breaking effects

### On CP asymmetries in two-, three- and four-body D decays

• Physics
• 2012
A bstractIndirect and direct CP violations have been established in KL and Bd decays. They have been found in two-body decay channels — with the exception of KL → π+π−e+e− transitions. Evidence for

### Relating direct CP violation in D decays and the forward-backward asymmetry in tt[over ¯] production.

• Physics
Physical review letters
• 2012
It is shown that a minimal model, with an extra scalar doublet, previously suggested to explain the top data, gives a contribution to CP violation in charm decays that is of the right size.