Measurement of absolute hadronic branching fractions of D mesons and e+e-→D(D)over-bar cross sections at Ec.m.=3773 MeV -: art. no. 121801

被引：80

作者：

He, Q

Muramatsu, H

Park, CS

Park, W

Thorndike, EH

Coan, TE

Gao, YS

Liu, F

Artuso, M

Boulahouache, C

Blusk, S

Butt, J

Dambasuren, E

Dorjkhaidav, O

Li, J

Menaa, N

Mountain, R

Nandakumar, R

Randrianarivony, K

Redjimi, R

Sia, R

Skwarnicki, T

Stone, S

Wang, JC

Zhang, K

Csorna, SE

Bonvicini, G

Cinabro, D

Dubrovin, M

Briere, RA

Chen, GP

Chen, J

Ferguson, T

Tatishvili, G

Vogel, H

Watkins, ME

Rosner, JL

Adam, NE

Alexander, JP

Berkelman, K

Cassel, DG

Crede, V

Duboscq, JE

Ecklund, KM

Ehrlich, R

Fields, L

Gibbons, L

Gittelman, B

Gray, R

Gray, SW

机构：

[1] Univ Rochester, Rochester, NY 14627 USA

[2] So Methodist Univ, Dallas, TX 75275 USA

[3] Syracuse Univ, Syracuse, NY 13244 USA

[4] Vanderbilt Univ, Nashville, TN 37235 USA

[5] Wayne State Univ, Detroit, MI 48202 USA

[6] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[7] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[8] Cornell Univ, Ithaca, NY 14853 USA

[9] Univ Florida, Gainesville, FL 32611 USA

[10] George Mason Univ, Fairfax, VA 22030 USA

[11] Univ Illinois, Urbana, IL 61801 USA

[12] Carleton Univ, Ottawa, ON K1S 5B6, Canada

[13] Univ Kansas, Lawrence, KS 66045 USA

[14] Luther Coll, Decorah, IA 52101 USA

[15] Univ Minnesota, Minneapolis, MN 55455 USA

[16] Northwestern Univ, Evanston, IL 60208 USA

[17] SUNY Albany, Albany, NY 12222 USA

[18] Univ Oklahoma, Norman, OK 73019 USA

[19] Univ Pittsburgh, Pittsburgh, PA 15260 USA

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

[21] Purdue Univ, W Lafayette, IN 47907 USA

[22] Rensselaer Polytech Inst, Troy, NY 12180 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.95.121801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using 55.8 pb(-1) of e(+)e(-) collisions recorded at the psi(3770) resonance with the CLEO-c detector at CESR, we determine absolute hadronic branching fractions of charged and neutral D mesons using a double tag technique. Among measurements for three D-0 and six D+ modes, we obtain reference branching fractions B(D-0-> K(-)pi(+))=(3.91 +/- 0.08 +/- 0.09)% and B(D+-> K(-)pi(+)pi(+))=(9.5 +/- 0.2 +/- 0.3)%, where the uncertainties are statistical and systematic, respectively. Final state radiation is included in these branching fractions by allowing for additional, unobserved, photons in the final state. Using a determination of the integrated luminosity, we also extract the cross sections sigma(e(+)e(-)-> D-0(D) over bar (0))=(3.60 +/- 0.07(-0.05)(+0.07)) nb and sigma(e(+)e(-) -> D+D-)=(2.79 +/- 0.07(-0.04)(+0.10)) nb.

引用

页数：6

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