Study of D0- D̄0 mixing and D0 doubly Cabibbo-suppressed decays
Using a sample of four million hadronic Z events collected in ALEPH from 1991 to 1995, the decays D∗+→D0πs+, with D0 decaying to K−π+ or to K+π−, are studied. The relative branching ratio B(D0→K+π−)/B(D0→K−π+) is measured to be 1.84±0.59(stat.) ±0.34(syst.)%. The two possible contributions to the D0...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | text |
| Language: | English |
| Published: |
Institutional Knowledge at Singapore Management University
1998
|
| Subjects: | |
| Online Access: | https://ink.library.smu.edu.sg/sis_research/5839 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Singapore Management University |
| Language: | English |
| id |
sg-smu-ink.sis_research-6842 |
|---|---|
| record_format |
dspace |
| spelling |
sg-smu-ink.sis_research-68422021-03-12T08:06:03Z Study of D0- D̄0 mixing and D0 doubly Cabibbo-suppressed decays BARATE, R. THULASIDAS, M. Using a sample of four million hadronic Z events collected in ALEPH from 1991 to 1995, the decays D∗+→D0πs+, with D0 decaying to K−π+ or to K+π−, are studied. The relative branching ratio B(D0→K+π−)/B(D0→K−π+) is measured to be 1.84±0.59(stat.) ±0.34(syst.)%. The two possible contributions to the D0→K+π− decay, doubly Cabibbo-suppressed decays and D0–D̄0 mixing, are disentangled by measuring the proper-time distribution of the reconstructed D0's. Assuming no interference between the two processes, the upper limit obtained on the mixing rate is 0.92% at95%CL. The possible effect of interference between the two amplitudes is also assessed. 1998-09-17T07:00:00Z text https://ink.library.smu.edu.sg/sis_research/5839 info:doi/10.1016/S0370-2693(98)00946-0 Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Computer Sciences 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 |
Computer Sciences Databases and Information Systems |
| spellingShingle |
Computer Sciences Databases and Information Systems BARATE, R. THULASIDAS, M. Study of D0- D̄0 mixing and D0 doubly Cabibbo-suppressed decays |
| description |
Using a sample of four million hadronic Z events collected in ALEPH from 1991 to 1995, the decays D∗+→D0πs+, with D0 decaying to K−π+ or to K+π−, are studied. The relative branching ratio B(D0→K+π−)/B(D0→K−π+) is measured to be 1.84±0.59(stat.) ±0.34(syst.)%. The two possible contributions to the D0→K+π− decay, doubly Cabibbo-suppressed decays and D0–D̄0 mixing, are disentangled by measuring the proper-time distribution of the reconstructed D0's. Assuming no interference between the two processes, the upper limit obtained on the mixing rate is 0.92% at95%CL. The possible effect of interference between the two amplitudes is also assessed. |
| format |
text |
| author |
BARATE, R. THULASIDAS, M. |
| author_facet |
BARATE, R. THULASIDAS, M. |
| author_sort |
BARATE, R. |
| title |
Study of D0- D̄0 mixing and D0 doubly Cabibbo-suppressed decays |
| title_short |
Study of D0- D̄0 mixing and D0 doubly Cabibbo-suppressed decays |
| title_full |
Study of D0- D̄0 mixing and D0 doubly Cabibbo-suppressed decays |
| title_fullStr |
Study of D0- D̄0 mixing and D0 doubly Cabibbo-suppressed decays |
| title_full_unstemmed |
Study of D0- D̄0 mixing and D0 doubly Cabibbo-suppressed decays |
| title_sort |
study of d0- d̄0 mixing and d0 doubly cabibbo-suppressed decays |
| publisher |
Institutional Knowledge at Singapore Management University |
| publishDate |
1998 |
| url |
https://ink.library.smu.edu.sg/sis_research/5839 |
| _version_ |
1770575610922401792 |