Study of the decay D0 → K+π-

被引：25

作者：

Link, JM ^{[1
]}

Reyes, M

Yager, PM

Anjos, JC

Bediaga, I

Göbel, C

Magnin, J

Massafferi, A

de Miranda, JM

Pepe, IM

dos Reis, AC

Simao, FRA

Carrillo, S

Casimiro, E

Sánchez-Hernández, A

Uribe, C

Vazquez, F

Cinquini, L

Cumalat, JP

O'Reilly, B

Ramirez, JE

Vaandering, EW

Butler, JN

Cheung, HWK

Gaines, I

Garbincius, PH

Garren, LA

Gottschalk, E

Kasper, PH

Kreymer, AE

Kutschke, R

Bianco, S

Fabbri, FL

Sarwar, S

Zallo, A

Cawlfield, C

Kim, DY

Rahimi, A

Wiss, J

Gardner, R

Chung, YS

Kang, JS

Ko, BR

Kwak, JW

Lee, KB

Park, H

Alimonti, C

Boschini, M

Caccianiga, B

D'Angelo, P

机构：

[1] Univ Calif Davis, Davis, CA 95616 USA

[2] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[3] CINVESTAV, Mexico City 07000, DF, Mexico

[4] Univ Colorado, Boulder, CO 80309 USA

[5] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA

[6] Lab Nazl Frascati, I-00044 Frascati, Italy

[7] Ist Nazl Fis Nucl, I-00044 Frascati, Italy

[8] Univ Illinois, Urbana, IL 61801 USA

[9] Indiana Univ, Bloomington, IN 47405 USA

[10] Korea Univ, Seoul 136701, South Korea

[11] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[12] Univ Milan, Milan, Italy

[13] Univ N Carolina, Asheville, NC 28804 USA

[14] Dipartimento Fis Nucl & Teor, Pavia, Italy

[15] Ist Nazl Fis Nucl, I-27100 Pavia, Italy

[16] Univ Puerto Rico, Mayaguez, PR 00681 USA

[17] Univ S Carolina, Columbia, SC 29208 USA

[18] Univ Tennessee, Knoxville, TN 37996 USA

[19] Vanderbilt Univ, Nashville, TN 37235 USA

[20] Univ Wisconsin, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.86.2955

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a large sample of photoproduced charm mesons from the FOCUS experiment at Fermilab (FNAL-E831), we observe the decay D-0 --> K+ pi (-) with a signal yield of 149 +/- 31 events compared to a similarly cut sample consisting of 36760 +/- 195 D-0 --> K- pi (+) events. We use the observed ratio of D-0 --> K+ pi (-) to D-0 --> K- pi (+) (0.404 +/- 0.085 +/- 0.025)% to obtain a relationship between the D-0 mixing and doubly Cabibbo suppressed decay parameters.

引用

页码：2955 / 2958

页数：4

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