A study of D sup 0 - D sup 0 mixing

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1988

OSTI ID:7274150

Browder, T E

We present a study of D{sup 0} mixing from Fermilab experiment E691, using events of the type D{sup *+} {yields} {pi}{sup +}D{sup 0}, with D{sup 0} {yields} K{sup +}{pi}{sup {minus}} and D{sup 0} {yields} K{sup +}{pi}{sup {minus}}{pi}{sup +}{pi}{sup {minus}}. The charge of the bachelor pion tags the charm quantum number of the D{sup 0} meson at production. The decay time is used to separate mixing from doubly Cabibbo-suppressed decays. We observed no evidence for mixing in either mode. Combining the results from the two decay modes, we find r{sub M} = 0.0005 {plus minus} .0020 or r{sub M} < .0037 at the 90% confidence level, where r{sub M} is the ratio of wrong sign decays from mixing to right sign decays. We also present limits on doubly Cabibbo suppressed decays and consider the effect of possible interference.

• Research Organization: California Univ., Santa Barbara, CA (USA)
• OSTI ID: 7274150
• Country of Publication: United States
• Language: English

Related Subjects

640300* -- Atomic
Molecular &amp; Chemical Physics
645100 -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
BOSONS
CABIBBO ANGLE
CHARM PARTICLES
CHARMED MESONS
D MESONS
DATA
DATA ANALYSIS
DECAY
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
HADRONS
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
MESONS
NUMERICAL DATA
PIONS
PRODUCTION
PSEUDOSCALAR MESONS