Probing Noncommutative Space-Time Scale Using γγ→Z at ILC

HE Xiao-Gang; LI Xue-Qian

Chinese Physics C> 2007, Vol. 31> Issue(9) : 844-848

Probing Noncommutative Space-Time Scale Using γγ→Z at ILC

HE Xiao-Gang ,
LI Xue-Qian ^,

Department of Physics and Center for Theoretical Sciences, Taiwan University, Taipei, China2 Department of Physics, Nankai University, Tianjin 300071, China

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In this talk we report our work on testing Noncommutative Space-Time Scale Using γγ→Z at ILC. In ordinary space-time theory, decay of a spin-1 particle into two photons is strictly forbidden due to the Yang's Theorem. With noncommutative space-time this process can occur. This process thus provides an important probe for noncommutative space-time. The γγ collision mode at the ILC provides an ideal place to carry out such a study. Assuming an integrated luminosity of 500fb^－1, we show that the constraint which can be achieved on Γ(Z→γγ) is three to four orders of magnitude better than the current bound of 5.2×10^－5GeV. The noncommutative scale can be probed up to a few TeVs.

References

[1]

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HE Xiao-Gang and LI Xue-Qian. Probing Noncommutative Space-Time Scale Using γγ→Z at ILC[J]. Chinese Physics C, 2007, 31(9): 844-848.

HE Xiao-Gang and LI Xue-Qian. Probing Noncommutative Space-Time Scale Using γγ→Z at ILC[J]. Chinese Physics C, 2007, 31(9): 844-848. shu

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Received: 2007-04-25
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Probing Noncommutative Space-Time Scale Using γγ→Z at ILC

Corresponding author: LI Xue-Qian,

Department of Physics and Center for Theoretical Sciences, Taiwan University, Taipei, China2 Department of Physics, Nankai University, Tianjin 300071, China

Received Date: 2007-04-25

Accepted Date: 1900-01-01

Available Online: 2007-09-05

Abstract: In this talk we report our work on testing Noncommutative Space-Time Scale Using γγ→Z at ILC. In ordinary space-time theory, decay of a spin-1 particle into two photons is strictly forbidden due to the Yang's Theorem. With noncommutative space-time this process can occur. This process thus provides an important probe for noncommutative space-time. The γγ collision mode at the ILC provides an ideal place to carry out such a study. Assuming an integrated luminosity of 500fb^－1, we show that the constraint which can be achieved on Γ(Z→γγ) is three to four orders of magnitude better than the current bound of 5.2×10^－5GeV. The noncommutative scale can be probed up to a few TeVs.

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Probing Noncommutative Space-Time Scale Using γγ→Z at ILC

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