J/ψ pair production at the Tevatron with <I>s</I>=1.96 TeV

QIAO Cong-Feng; SUN Li-Ping

doi:10.1088/1674-1137/37/3/033105

Chinese Physics C> 2013, Vol. 37> Issue(3) : 033105 DOI: 10.1088/1674-1137/37/3/033105

J/ψ pair production at the Tevatron with s=1.96 TeV

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Abstract：
We study the m J/ψ pair production issue at the Fermilab Tevatron Run II with a center-of-mass energy of √s=1.96 TeV. Both the color-singlet and color-octet production mechanisms are considered. Our results show that the transverse momentum (p_T) scaling behaviors of the double m J/ψ differential cross-sections in the color-singlets and color-octets deviate distinctively from each other while p_T is larger than 8 GeV, and with a luminosity of 5 fb^-1, the m J/ψ pair events from the color-singlet scheme are substantially measurable in the Tevatron experiments, even with a certain lower transverse momentum cut. Hence the Tevatron is still a possible platform to check the heavy quarkonium production mechanism.

References

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Braaten E, Fleming S, Leibovich A K. Phys. Rev. D, 2001, 63: 094006[2] Cho P. Leibovich. Phys. Rev. D, 1996, 53: 150[3] Bodwin G T, Braaten E, Lepage G P. Phys. Rev. D, 1995, 51: 1125[4] QIAO Cong-Feng. Phys. Rev. D, 2002, 66: 057504[5] QIAO Cong-Feng, SUN Li-Ping, SUN Peng. J. Phys. G, 2010, 37: 075019[6] Bodwin G T, Braaten E, Lepage G P. Phys. Rev. D, 1992, 46: R3703; Braaten E, Fleming S. Phys. Rev. Lett., 1995, 74: 3327[7] Barger V, Fleming S, Phillips R J N. Phys. Lett. B, 1996, 371: 111[8] LAI H L et al. (CTEQ collaboration). Eur. Phys. J. C, 2000, 12: 375

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QIAO Cong-Feng and SUN Li-Ping. J/ψ pair production at the Tevatron with s=1.96 TeV[J]. Chinese Physics C, 2013, 37(3): 033105. doi: 10.1088/1674-1137/37/3/033105

QIAO Cong-Feng and SUN Li-Ping. J/ψ pair production at the Tevatron with s=1.96 TeV[J]. Chinese Physics C, 2013, 37(3): 033105. doi: 10.1088/1674-1137/37/3/033105 shu

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Received: 2012-05-31
Revised: 2012-06-07

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沈阳化工大学材料科学与工程学院沈阳 110142

J/ψ pair production at the Tevatron with s=1.96 TeV

QIAO Cong-Feng
SUN Li-Ping

Received Date: 2012-05-31
Accepted Date: 2012-06-07
Available Online: 2013-03-05

Abstract: We study the m J/ψ pair production issue at the Fermilab Tevatron Run II with a center-of-mass energy of √s=1.96 TeV. Both the color-singlet and color-octet production mechanisms are considered. Our results show that the transverse momentum (p_T) scaling behaviors of the double m J/ψ differential cross-sections in the color-singlets and color-octets deviate distinctively from each other while p_T is larger than 8 GeV, and with a luminosity of 5 fb^-1, the m J/ψ pair events from the color-singlet scheme are substantially measurable in the Tevatron experiments, even with a certain lower transverse momentum cut. Hence the Tevatron is still a possible platform to check the heavy quarkonium production mechanism.