Study of the Cabibbo-suppressed decay modes D0→π-π+ and D0→K-K+

被引：33

作者：

Link, JM ^{[1
]}

Reyes, M

Yager, PM

Anjos, JC

Bediaga, I

Göbel, C

Magnin, J

Massafferri, A

de Miranda, JM

Pepe, IM

dos Reis, AC

Carrillo, S

Casimiro, E

Cuautle, E

Sánchez-Hernández, A

Uribe, C

Vázquez, F

Agostino, L

Cinquini, L

Cumalat, JP

O'Reilly, B

Ramirez, JE

Segoni, I

Wahl, M

Butler, JN

Cheung, HWK

Chiodini, G

Gaines, I

Garbincius, PH

Garren, LA

Gottschalk, E

Kasper, PH

Kreymer, AE

Kutschke, R

Benussi, L

Bianco, S

Fabbri, FL

Zallo, A

Cawlfield, C

Kim, DY

Rahimi, A

Wiss, J

Gardner, R

Kryemadhi, A

Chang, CH

Chung, YS

Kang, JS

Ko, BR

Kwak, JW

Lee, KB

机构：

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

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

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

[4] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy

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

[6] Univ Milan, Milan, Italy

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

[8] Kyungpook Natl Univ, Taegu 702701, South Korea

[9] Korea Univ, Seoul 136701, South Korea

[10] Indiana Univ, Bloomington, IN 47405 USA

[11] Univ Illinois, Urbana, IL 61801 USA

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

[13] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[14] Univ Colorado, Boulder, CO 80309 USA

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

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

[17] Univ Wisconsin, Madison, WI 53706 USA

[18] Vanderbilt Univ, Nashville, TN 37235 USA

[19] Univ Tennessee, Knoxville, TN 37996 USA

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

来源：

PHYSICS LETTERS B | 2003年 / 555卷 / 3-4期

基金：

新加坡国家研究基金会; 美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(03)00053-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement for the branching ratios of the Cabibbo-suppressed decay modes D-0 --> pi(-)pi(+) and D-0 --> K-K+. We measured: Gamma(D-0 --> K-K+)/Gamma(D-0 --> pi(-)pi(+)) = 2.81 +/- 0.10(stat) +/- 0.06(syst), Gamma(D-0 --> K-K+)/Gamma(D-0 --> K(-)pi(+)) = 0.0993 +/- 0.0014(stat) +/- 0.0014(syst), and Gamma(D-0 --> pi(-)pi(+))/Gamma(D-0 --> K(-)pi(+)) = 0.0353 +/- 0.0012(stat) +/- 0.0006(syst). These values have been combined with other experimental data to extract the ratios of isospin amplitudes and the phase shifts for the D --> KK and D --> pipi decay channels. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：167 / 173

页数：7

共 23 条

[1] Branching fractions for D0→K+K- and D0→π+π-, and a search for CP violation in D0 decays [J].

Aitala, EM ;

Amato, S ;

Anjos, JC ;

Appel, JA ;

Ashery, D ;

Banerjee, S ;

Bediaga, I ;

Blaylock, G ;

Bracker, SB ;

Burchat, PR ;

Burnstein, RA ;

Carter, T ;

Carvalho, HS ;

Copty, NJ ;

Cremaldi, LM ;

Darling, C ;

Denisenko, K ;

Fernandez, A ;

Fox, G ;

Gagnon, P ;

Gobel, C ;

Gounder, K ;

Halling, AM ;

Herrera, G ;

Hurvits, G ;

James, C ;

Kasper, PA ;

Kwan, S ;

Langs, DC ;

Leslie, J ;

Lundberg, B ;

MayTal-Beck, S ;

Meadows, B ;

Neto, JRTD ;

Milburn, RH ;

de Miranda, JM ;

Napier, A ;

Nguyen, A ;

d'Oliveira, AB ;

O'Shaughnessy, K ;

Peng, KC ;

Perera, LP ;

Purohit, MV ;

Quinn, B ;

Radeztsky, S ;

Rafatian, A ;

Reay, NW ;

Reidy, JJ ;

dos Reis, AC ;

Rubin, HA .

PHYSICS LETTERS B, 1998, 421 (1-4) :405-411

[2] EXCLUSIVE NONLEPTONIC DECAYS OF D-MESONS, DS-MESONS AND B-MESONS [J].

BAUER, M ;

STECH, B ;

WIRBEL, M .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1987, 34 (01) :103-115

[3] Analysis of D+->K-S((0))K+ and D+->K-S((0))pi(+) [J].

Bishai, M ;

Fast, J ;

Gerndt, E ;

Hinson, JW ;

Menon, N ;

Miller, DH ;

Shibata, EI ;

Shipsey, IPJ ;

Yurko, M ;

Gibbons, L ;

Johnson, SD ;

Kwon, Y ;

Roberts, S ;

Thorndike, EH ;

Jessop, CP ;

Lingel, K ;

Marsiske, H ;

Perl, ML ;

Schaffner, SF ;

Ugolini, D ;

Wang, R ;

Zhou, X ;

Coan, TE ;

Fadeyev, V ;

Korolkov, I ;

Maravin, Y ;

Narsky, I ;

Shelkov, V ;

Staeck, J ;

Stroynowski, R ;

Volobouev, I ;

Ye, J ;

Artuso, M ;

Efimov, A ;

Frasconi, F ;

Gao, M ;

Goldberg, M ;

He, D ;

Kopp, S ;

Moneti, GC ;

Mountain, R ;

Mukhin, Y ;

Schuh, S ;

Skwarnicki, T ;

Stone, S ;

Viehhauser, G ;

Xing, X ;

Bartelt, J ;

Csorna, SE ;

Jain, V .

PHYSICAL REVIEW LETTERS, 1997, 78 (17) :3261-3265

[4] Nonleptonic decays and lifetimes of charm and beauty particles [J].

Browder, TE ;

Honscheid, K ;

Pedrini, D .

ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 1996, 46 :395-469

[5] 1/N EXPANSION FOR EXCLUSIVE AND INCLUSIVE CHARM DECAYS [J].

BURAS, AJ ;

GERARD, JM ;

RUCKL, R .

NUCLEAR PHYSICS B, 1986, 268 (01) :16-48

[6] FINAL-STATE-INTERACTION AND SU(3)-BREAKING EFFECTS IN D(0)-]PI-PI-BAR,KKBAR [J].

CHAU, LL ;

CHENG, HY .

PHYSICS LETTERS B, 1992, 280 (3-4) :281-286

[7]

Csorna SE, 2002, PHYS REV D, V65, DOI 10.1103/PhysRevD.65.092001

[8]

CZARNECKI A, 1992, PHYS C, V54, P411

[9]

DONOGHUE JF, 1992, DYNAMICS STANDARD MO, P510

[10] DESCRIPTION AND PERFORMANCE OF THE FERMILAB-E687 SPECTROMETER [J].

FRABETTI, PL ;

GIORDANO, V ;

MOLINARI, G ;

BOGART, CW ;

CHEUNG, HWK ;

COTEUS, P ;

CULY, S ;

CUMALAT, JP ;

DALLAPICCOLA, C ;

ERDOS, E ;

GINKEL, J ;

JOHNS, W ;

SCHULTZ, G ;

BUTLER, JN ;

CIHANGIR, S ;

COTTARAMUSINO, A ;

CURRIER, R ;

DAVENPORT, F ;

GAINES, I ;

GARBINCIUS, PH ;

GOURLAY, SA ;

HARDING, DJ ;

HANSEN, S ;

JUSTICE, R ;

KEPHART, K ;

KASPER, P ;

KREYMER, A ;

LEBRUN, P ;

SHUKLA, S ;

BIANCO, S ;

FABBRI, FL ;

GIARDONI, M ;

PASSAMONTI, L ;

RUSSO, V ;

SPALLONE, A ;

ZALLO, A ;

CULBERTSON, R ;

DIESBURG, M ;

JAROSS, G ;

LINGEL, K ;

SHELDON, PD ;

WISS, J ;

ALIMONTI, G ;

BELLINI, G ;

CAVALETTI, WR ;

DANGELO, P ;

DICORATO, M ;

GIAMMARCHI, MG ;

INZANI, P ;

LEVERARO, F .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1992, 320 (03) :519-547

← 1 2 3 →