CHARM MESON PRODUCTION IN 600 GEV/C PI-EMULSION INTERACTIONS

被引：37

作者：

KODAMA, K

USHIDA, N

MOKHTARANI, A

PAOLONE, VS

VOLK, JT

WILCOX, JO

YAGER, PM

EDELSTEIN, RM

FREYBERGER, AP

GIBAUT, DB

LIPTON, RJ

NICHOLS, WR

POTTER, DM

RUSS, JS

ZHANG, C

ZHANG, Y

JANG, HI

KIM, JY

KIM, TI

LIM, IT

PAC, MY

BALLER, BR

STEFANSKI, RJ

NAKAZAWA, K

CHUNG, KS

CHUNG, SH

KIM, DC

PARK, IG

PARK, MS

SONG, JS

YOON, CS

CHIKAWA, M

ABE, T

FUJII, T

FUJIOKA, G

FUJIWARA, K

FUKUSHIMA, H

HARA, T

TAKAHASHI, Y

TARUMA, K

TSUZUKI, Y

YOKOYAMA, C

CHANG, SD

CHEON, BG

CHO, JH

KANG, JS

KIM, CO

KIM, KY

KIM, TY

LEE, JC

机构：

[1] CHONMAN NATL UNIV,KWANGJU 500757,SOUTH KOREA

[2] GYEONGSANG NATL UNIV,JINJU 660300,SOUTH KOREA

[3] UNIV KOREA,SEOUL 136701,SOUTH KOREA

[4] SCI EDUC INST OSAKA PREFECTURE,OSAKA 558,JAPAN

[5] WONKWANG UNIV,IRI 570749,SOUTH KOREA

[6] TOHO UNIV,FUNABASHI,CHIBA 274,JAPAN

[7] UTSUNOMIYA UNIV,UTSUNOMIYA,TOCHIGI 321,JAPAN

[8] UNIV CALIF DAVIS,DAVIS,CA 95616

[9] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213

[10] FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510

[11] GIFU UNIV,GIFU 50111,JAPAN

[12] KINKI UNIV,HIGASHIOSAKA,OSAKA 577,JAPAN

[13] KOBE UNIV,KOBE 657,JAPAN

[14] NAGOYA UNIV,NAGOYA,AICHI 464,JAPAN

[15] OHIO STATE UNIV,COLUMBUS,OH 43210

[16] OKAYAMA UNIV,OKAYAMA 700,JAPAN

[17] UNIV OKLAHOMA,NORMAN,OK 73019

[18] OSAKA CITY UNIV,OSAKA 558,JAPAN

[19] NAGOYA INST TECHNOL,NAGOYA,AICHI 466,JAPAN

来源：

PHYSICS LETTERS B | 1992年 / 284卷 / 3-4期

基金：

日本学术振兴会; 美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(92)90462-D

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present total and differential cross sections for charm mesons produced in 600 GeV/c pi--emulsion interactions. Fits to d2-sigma/dx(F) dp(T)2 is-proportional-to (1 - Absolute value of x(F))(n)exp(- bp(T)2) for 676 electronically reconstructed D mesons with x(F) > 0 give n=4.25+/-0.24 (stat.) +/-0.23 (syst.) and b=0.76+/-0.03+/-0.03 (GeV/c)-2. The total inclusive D+ and D0 cross sections are sigma(pi--N-->D+/-; x(F) > 0)=8.66+/-0.46+/-1.96-mu-b/nucleon and sigma(pi--N-->D0/D0BAR; x(F) > 0)=22.05+/-1.37+/-4.82-mu-b/nucleon, where a linear dependence on the mean atomic weight of the target is assumed. These results are compared to next-to-leading order QCD predictions.

引用

页码：461 / 470

页数：10

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