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Measurement of beauty hadron pair production in 600 GeV/c π− emulsion interactions

Authors :
K. Kodama
N. Ushida
A. Mokhtarani
V.S. Paolone
J.T. Volk
J.O. Wilcox
P.M. Yager
R.M. Edelstein
A.P. Freyberger
D.B. Gibaut
R.J. Lipton
W.R. Nichols
D.M. Potter
J.S. Russ
C. Zhang
Y. Zhang
H.I. Jang
J.Y. Kim
T.I. Kim
I.T. Lim
M.Y. Pac
B.R. Baller
R.J. Stefanski
K. Nakazawa
K.S. Chung
S.H. Chung
D.C. Kim
I.G. Park
M.S. Park
J.S. Song
C.S. Yoon
M. Chikawa
T. Abe
T. Fujii
K. Fujiwara
H. Fukushima
T. Hara
Y. Takahashi
K. Taruma
Y. Tsuzuki
C. Yokoyama
S.D. Chang
B.G. Cheon
J.H. Cho
J.S. Kang
C.O. Kim
K.Y. Kim
T.Y. Kim
J.C. Lee
S.B. Lee
G.Y. Lim
S.W. Nam
T.S. Shin
K.S. Sim
J.K. Woo
Y. Isokane
Y. Tsuneoka
S. Aoki
A. Gauthier
K. Hoshino
H. Kitamura
M. Kobayashi
M. Miyanashi
K. Nakamura
Y. Nakamura
S. Nakanishi
K. Niu
K. Niwa
M. Nomura
H. Tajima
S. Yoshida
M. Aryal
J.M. Dunlea
S.G. Frederiksen
S. Kuramata
B.G. Lundberg
G.A. Olevnik
N.W. Reay
K. Reibel
R.A. Sidwell
N.R. Stanton
K. Moriyama
H. Shibata
G.R. Kalbfleisch
P. Skubic
J.M. Snow
S.E. Willis
O. Kusumoto
T. Okusawa
M. Teranaka
T. Tominaga
T. Yoshida
H. Yuuki
H. Okabe
J. Yokota
M. Adachi
M. Kazuno
E. Niu
H. Shibuya
S. Watanabe
I. Ohtsuka
Y. Sato
I. Tezuka
S.Y. Bahk
S.K. Kim
Source :
Physics Letters B. 303:359-367
Publication Year :
1993
Publisher :
Elsevier BV, 1993.

Abstract

We report on the production characteristics and total cross section for 9 beauty hadron pairs produced by a 600 GeV/ c π − beam, the first such information in this energy region. The events were detected in the hybrid emulsion spectrometer of Fermilab Experiment E653. The measured pair cross section for all χ F , assuming linear A dependence, is 33±11 (stat.)±6(syst.) nb/nucleon. Fits of the inclusive single-hadron production distribution to the forms d σ d χ F ∝ (1−|χ F −χ 0 |) n and d σ d p T 2 ∝ exp (−bp t 2 ) give n=5.0 −2.1−1.7 +2.7+1.7 , χ 0 =0.06 −0.07−0.03 +0.06+0.02 , and b=0.13 −0.04−0.02 +0.05+0.02 ( GeV /c −2 . .The pairs tend to be produced back-to-back.

Details

ISSN :
03702693
Volume :
303
Database :
OpenAIRE
Journal :
Physics Letters B
Accession number :
edsair.doi...........19974eca348f74c0fdde17de4e28e410
Full Text :
https://doi.org/10.1016/0370-2693(93)91446-t