Measurement of the Ds+ lifetime -: art. no. 052003

被引：7

作者：

Link, JM ^{[1
]}

Yager, PM

Anjos, JC

Bediaga, I

Castromonte, C

Machado, AA

Magnin, J

Massafferi, A

de Miranda, JM

Pepe, IM

Polycarpo, E

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

Segoni, I

Stenson, K

Butler, JN

Cheung, HWK

Chiodini, G

Gaines, I

Garbincius, PH

Garren, LA

Gottschalk, E

Kasper, PH

Kreymer, AE

Kutschke, R

Wang, M

Benussi, L

Bertani, M

Bianco, S

Fabbri, FL

Pacetti, S

Zallo, A

Reyes, M

Cawlfield, C

Kim, DY

Rahimi, A

Wiss, J

Gardner, R

Kryemadhi, A

Chung, YS

Kang, JS

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] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

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

[7] Univ Guanajuato, Guanajuato 37150, Mexico

[8] Univ Illinois, Urbana, IL 61801 USA

[9] Indiana Univ, Bloomington, IN 47405 USA

[10] Korea Univ, Seoul 136701, South Korea

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

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

[13] Univ Milan, I-20133 Milan, Italy

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

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

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

[17] Pontificia Univ Catolica Rio de Janeiro, Rio De Janeiro, Brazil

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

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

[20] Univ Tennessee, Knoxville, TN 37996 USA

[21] Vanderbilt Univ, Nashville, TN 37235 USA

[22] Univ Wisconsin, Madison, WI 53706 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.95.052003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A high statistics measurement of the D-s(+) lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis of the two decay modes, D-s(+)->phi(1020)pi(+) and D-s(+)->(K) over bar*(892)K-0(+), used for the measurement. The measured lifetime is 507.4 +/- 5.5(stat)+/- 5.1(syst) fs using 8961 +/- 105 D-s(+)->phi(1020)pi(+) and 4680 +/- 90 D-s(+)->(K) over bar*(892)K-0(+) decays. This is a significant improvement over the present world average.

引用

页数：5

共 21 条

[1] Measurement of the Ds lifetime [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, NK ;

Cremaldi, LM ;

Darling, C ;

Denisenko, K ;

Fernandez, A ;

Fox, GF ;

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 ;

Mihalcea, D ;

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 .

PHYSICS LETTERS B, 1999, 445 (3-4) :449-454

[2]

[Anonymous], RIV NUOVO CIM

[3]

Bellini G, 1997, PHYS REP, V289, P2

[4] Aspects of heavy-quark theory [J].

Bigi, I ;

Shifman, M ;

Uraltsev, N .

ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 1997, 47 :591-661

[5] WEAK ANNIHILATION AND THE END-POINT SPECTRUM IN SEMILEPTONIC B-DECAYS [J].

BIGI, II ;

URALTSEV, NG .

NUCLEAR PHYSICS B, 1994, 423 (01) :33-55

[6] D(S) LIFETIME, M(B), M(C) AND VERTICAL-BAR-V(CB)VERTICAL-BAR IN THE HEAVY-QUARK EXPANSION [J].

BIGI, II ;

URALTSEV, NG .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1994, 62 (04) :623-631

[7]

BIGI II, HEPPH0112155

[8] Measurement of charm meson lifetimes [J].

Bonvicini, G ;

Cinabro, D ;

Greene, R ;

Perera, LP ;

Zhou, GJ ;

Chan, S ;

Eigen, G ;

Lipeles, E ;

Schmidtler, M ;

Shapiro, A ;

Sun, WM ;

Urheim, J ;

Weinstein, AJ ;

Würthwein, F ;

Jaffe, DE ;

Masek, G ;

Paar, HP ;

Potter, EM ;

Prell, S ;

Sharma, V ;

Asner, DM ;

Eppich, A ;

Gronberg, J ;

Hill, TS ;

Korte, CM ;

Lange, DJ ;

Morrison, RJ ;

Nelson, HN ;

Nelson, TK ;

Roberts, D ;

Tajima, H ;

Behrens, BH ;

Ford, WT ;

Gritsan, A ;

Krieg, H ;

Roy, J ;

Smith, JG ;

Alexander, JP ;

Baker, R ;

Bebek, C ;

Berger, BE ;

Berkelman, K ;

Boisvert, V ;

Cassel, DG ;

Crowcroft, DS ;

Dickson, M ;

von Dombrowski, S ;

Drell, PS ;

Dumas, DJ ;

Ecklund, KM .

PHYSICAL REVIEW LETTERS, 1999, 82 (23) :4586-4590

[9]

CHEUNG HW, HEPEX9912021

[10]

Cheung HWK, 2002, AIP CONF PROC, V618, P321, DOI 10.1063/1.1478851

← 1 2 3 →