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《中国物理C》(英文)编辑部
2024年10月30日

ANALYSIS OF HADRONIC EVENTS

  • 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 Bh.Γee≤3.00keV(95% C.L.).
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  • [1] K. G. Chetyrkin et al., Phys. Lett., 85B(1979), 227.M. Dine and 3. Sapierstein, Phys. Lett., 43(1979), 668.W. Celmaster and R. Gonsalves, Phys. Lett, 44(1980), 560.[2] R. Budny, Phys. Lett., 55B(1975), 227.J . Ellis and M. K. Gaillard, "Physics With Very High Energy e e Colliding Beams", CERN 76-18(21).[3] 3. D. Jackson and D. L. Scharre, Nucl. Insrrum. Meth., B128(1975), 13.[4] M. Krammer et al., DESY 80/25(1980).[5] J. P. Leveille. Proc. Z Theory, Ithaca, N. Y. 1981, p241.S. Pakvasa et al., Phys. Rev., D20(1979), 2862.
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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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ANALYSIS OF HADRONIC EVENTS

    Corresponding author: DONG Bao-Zhong,
  • Institute of High Energy Physics, Academia Sinica, Beijing

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 Bh.Γee≤3.00keV(95% C.L.).

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