Chinese Physics C > 1987, Vol. 11 > Issue(5): 596-602

ANALYSIS OF HADRONIC EVENTS

DONG Bao-Zhong^,

Institute of High Energy Physics, Academia Sinica, Beijing

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In this paper I summarize some results obtained from analyses of hadronic final state events. The analyzed data sample comes from Mark-J collaboration and covers an energy range from √ S=12GeV to √ S=46.78GeV. The integrated luminosity is 128.06Pb ^－1. We can search for production of open top quarks and toponium by measuring the total hadronic crossection R =3.85±0.02±0.12 was measured in the above mentioned energy range. It is consistent with R≈3.9 as expected from QCD for five different quark flavors. We search for the narrow bound states of the toponium from 39.79GeV to 46.78GeV. The most prominent resonance signal is at a c.m. energy √ S=45.12±0.04GeV and results in an upper limit of B _h .Γ _ee≤3.00keV(95% C.L.).

References

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DONG Bao-Zhong. ANALYSIS OF HADRONIC EVENTS[J]. Chinese Physics C, 1987, 11(5): 596-602.

DONG Bao-Zhong. ANALYSIS OF HADRONIC EVENTS[J]. Chinese Physics C, 1987, 11(5): 596-602. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

ANALYSIS OF HADRONIC EVENTS

DONG Bao-Zhong^,

Corresponding author:DONG Bao-Zhong,

Institute of High Energy Physics, Academia Sinica, Beijing

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1987-10-05

Abstract:In this paper I summarize some results obtained from analyses of hadronic final state events. The analyzed data sample comes from Mark-J collaboration and covers an energy range from √S=12GeV to √S=46.78GeV. The integrated luminosity is 128.06Pb^－1. We can search for production of open top quarks and toponium by measuring the total hadronic crossection R =3.85±0.02±0.12 was measured in the above mentioned energy range. It is consistent with R≈3.9 as expected from QCD for five different quark flavors. We search for the narrow bound states of the toponium from 39.79GeV to 46.78GeV. The most prominent resonance signal is at a c.m. energy √ S=45.12±0.04GeV and results in an upper limit of B _h .Γ _ee≤3.00keV(95% C.L.).