Measurement of the D→ππ branching fractions
Using data from CLEO II at the Cornell Electron Storage Ring we provide a new measurement of the branching fraction for D0→π+π-, and we present the first measurements of D0→π0π0 and of D+→π+π0, which is due to an isospin changing ΔI=3/2 transition. From these data we extract the ratio of isospin amp...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | text |
| Language: | English |
| Published: |
Institutional Knowledge at Singapore Management University
1993
|
| Subjects: | |
| Online Access: | https://ink.library.smu.edu.sg/sis_research/5799 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Singapore Management University |
| Language: | English |
| id |
sg-smu-ink.sis_research-6802 |
|---|---|
| record_format |
dspace |
| spelling |
sg-smu-ink.sis_research-68022021-02-25T09:24:02Z Measurement of the D→ππ branching fractions SELEN, M.; et al., THULASIDAS, M. Using data from CLEO II at the Cornell Electron Storage Ring we provide a new measurement of the branching fraction for D0→π+π-, and we present the first measurements of D0→π0π0 and of D+→π+π0, which is due to an isospin changing ΔI=3/2 transition. From these data we extract the ratio of isospin amplitudes A2/A0, and the cosine of the relative phase δ=δ2-δ0 between these amplitudes, for D→ππ decays. Unlike the situation in kaon decay where A2 is strongly suppressed, we find A2/A0=0.72±0.13±0.11 and cosδ=0.14±0.13±0.09. 1993-01-01T08:00:00Z text https://ink.library.smu.edu.sg/sis_research/5799 info:doi/10.1103/PhysRevLett.71.1973 Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Databases and Information Systems |
| institution |
Singapore Management University |
| building |
SMU Libraries |
| continent |
Asia |
| country |
Singapore Singapore |
| content_provider |
SMU Libraries |
| collection |
InK@SMU |
| language |
English |
| topic |
Databases and Information Systems |
| spellingShingle |
Databases and Information Systems SELEN, M.; et al., THULASIDAS, M. Measurement of the D→ππ branching fractions |
| description |
Using data from CLEO II at the Cornell Electron Storage Ring we provide a new measurement of the branching fraction for D0→π+π-, and we present the first measurements of D0→π0π0 and of D+→π+π0, which is due to an isospin changing ΔI=3/2 transition. From these data we extract the ratio of isospin amplitudes A2/A0, and the cosine of the relative phase δ=δ2-δ0 between these amplitudes, for D→ππ decays. Unlike the situation in kaon decay where A2 is strongly suppressed, we find A2/A0=0.72±0.13±0.11 and cosδ=0.14±0.13±0.09. |
| format |
text |
| author |
SELEN, M.; et al., THULASIDAS, M. |
| author_facet |
SELEN, M.; et al., THULASIDAS, M. |
| author_sort |
SELEN, M.; et al., |
| title |
Measurement of the D→ππ branching fractions |
| title_short |
Measurement of the D→ππ branching fractions |
| title_full |
Measurement of the D→ππ branching fractions |
| title_fullStr |
Measurement of the D→ππ branching fractions |
| title_full_unstemmed |
Measurement of the D→ππ branching fractions |
| title_sort |
measurement of the d→ππ branching fractions |
| publisher |
Institutional Knowledge at Singapore Management University |
| publishDate |
1993 |
| url |
https://ink.library.smu.edu.sg/sis_research/5799 |
| _version_ |
1770575596815908864 |