Search for D0-D0bar Mixing
We report on a search for D0-D0bar mixing made by a study of the `wrong-sign' process D0 -> K+pi-. The data come from an integrated luminosity of e+e- collisions at sqrt{s} of about 10 GeV consisting of 9.0 1/fb recorded with the CLEO-II.V detector. We measure the time-integrated rate of the...
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| creator | Nelson, Harry N |
| description | We report on a search for D0-D0bar mixing made by a study of the `wrong-sign'
process D0 -> K+pi-. The data come from an integrated luminosity of e+e-
collisions at sqrt{s} of about 10 GeV consisting of 9.0 1/fb recorded with the
CLEO-II.V detector. We measure the time-integrated rate of the `wrong-sign'
process D0 -> K+pi-, relative to that of the Cabibbo-favored process D0bar ->
K+pi-, to be R_ws=(0.34+-0.07+-0.06)%. We study that rate as a function of the
decay time of the D0, to distinguish the rate of direct
doubly-Cabibbo-suppressed decay from D0-D0bar mixing. The amplitudes that
describe D0-D0bar mixing, x' and y', are consistent with zero. The
one-dimensional limits, at the 95% C.L., that we determine are (1/2)x'^2 |
| doi_str_mv | 10.48550/arxiv.hep-ex/9909028 |
| format | Article |
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process D0 -> K+pi-. The data come from an integrated luminosity of e+e-
collisions at sqrt{s} of about 10 GeV consisting of 9.0 1/fb recorded with the
CLEO-II.V detector. We measure the time-integrated rate of the `wrong-sign'
process D0 -> K+pi-, relative to that of the Cabibbo-favored process D0bar ->
K+pi-, to be R_ws=(0.34+-0.07+-0.06)%. We study that rate as a function of the
decay time of the D0, to distinguish the rate of direct
doubly-Cabibbo-suppressed decay from D0-D0bar mixing. The amplitudes that
describe D0-D0bar mixing, x' and y', are consistent with zero. The
one-dimensional limits, at the 95% C.L., that we determine are (1/2)x'^2<0.05%,
and -5.9% < y' < 0.3%. All results are preliminary.</description><identifier>DOI: 10.48550/arxiv.hep-ex/9909028</identifier><language>eng</language><subject>Physics - High Energy Physics - Experiment ; Physics - High Energy Physics - Phenomenology</subject><creationdate>1999-09</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,782,887</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/hep-ex/9909028$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.hep-ex/9909028$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Nelson, Harry N</creatorcontrib><title>Search for D0-D0bar Mixing</title><description>We report on a search for D0-D0bar mixing made by a study of the `wrong-sign'
process D0 -> K+pi-. The data come from an integrated luminosity of e+e-
collisions at sqrt{s} of about 10 GeV consisting of 9.0 1/fb recorded with the
CLEO-II.V detector. We measure the time-integrated rate of the `wrong-sign'
process D0 -> K+pi-, relative to that of the Cabibbo-favored process D0bar ->
K+pi-, to be R_ws=(0.34+-0.07+-0.06)%. We study that rate as a function of the
decay time of the D0, to distinguish the rate of direct
doubly-Cabibbo-suppressed decay from D0-D0bar mixing. The amplitudes that
describe D0-D0bar mixing, x' and y', are consistent with zero. The
one-dimensional limits, at the 95% C.L., that we determine are (1/2)x'^2<0.05%,
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process D0 -> K+pi-. The data come from an integrated luminosity of e+e-
collisions at sqrt{s} of about 10 GeV consisting of 9.0 1/fb recorded with the
CLEO-II.V detector. We measure the time-integrated rate of the `wrong-sign'
process D0 -> K+pi-, relative to that of the Cabibbo-favored process D0bar ->
K+pi-, to be R_ws=(0.34+-0.07+-0.06)%. We study that rate as a function of the
decay time of the D0, to distinguish the rate of direct
doubly-Cabibbo-suppressed decay from D0-D0bar mixing. The amplitudes that
describe D0-D0bar mixing, x' and y', are consistent with zero. The
one-dimensional limits, at the 95% C.L., that we determine are (1/2)x'^2<0.05%,
and -5.9% < y' < 0.3%. All results are preliminary.</abstract><doi>10.48550/arxiv.hep-ex/9909028</doi><oa>free_for_read</oa></addata></record> |
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| identifier | DOI: 10.48550/arxiv.hep-ex/9909028 |
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| language | eng |
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| subjects | Physics - High Energy Physics - Experiment Physics - High Energy Physics - Phenomenology |
| title | Search for D0-D0bar Mixing |
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