New g－2 experiment at J-PARC

Tsutomu Mibe; for the; PARC g

doi:10.1088/1674-1137/34/6/022

Chinese Physics C> 2010, Vol. 34> Issue(6) : 745-748 DOI: 10.1088/1674-1137/34/6/022

New g－2 experiment at J-PARC

KEK, High Energy Accelerator Research Organization, 1-1, Oho, Tsukuba, Ibaraki, 305-0801, Japan

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Abstract：
A new measurement of the anomalous magnetic moment of the positive muon a_μ is proposed with a novel technique utilizing an ultra-cold muon beam accelerated to 300 MeV/c and a 66 cm-diameter muon storage ring without focusing-electric field. This measurement will be complimentary to the previous measurement that achieved 0.54 ppm accuracy with the magic energy of 3.1 GeV in a 14 m diameter storage ring. The proposed experiment aims to achieve the sensitivity down to 0.1 ppm.

References

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. Miller J P et al. Rep. Prog. Phys., 2007, 70: 7952. Bennett G W et al. Phys. Rev. Lett., 2004, 92: 161802;Phys. Rev. D, 2006, 73: 0720033. Roberts B L et al. in these proceedings4. Teubner T et al. in these proceedings5. Davier M et al. in these proceedings6. Hertzog D, Roberts B L et al. Proposal submitted to Fer-milab7. Charpak G et al. Phys. Lett., 1962, 1: 168. Bailey J et al. Nuovo Cimento A, 1972, 9: 3699. Bailey J et al. Nucl. Phys. B, 1979, 150: 110. http:j-parc.jp/index-e.html11. Janissen A C et al. Phys. Rev. A, 1990, 42: 16112. Woodle K A et al. Z. Phys. D, 1988, 9: 5913. Marshall G M et al. Phys. lett. A, 1978, 65: 35114. TRIUMF experiment S1249, approved in 200915. Nagamine K et al. Phys. Rev. Lett., 1995, 74: 481116. Bakule P et al. Nucl. Instrum. Meth. B., 2008, 266: 33517. Konopinski E J. Annu. Rev. Nucl. Sci., 1959, 9: 9918. The J-PARC g-2 collaboration, proposal submitted to J-PARC PAC, 2009

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Tsutomu Mibe, for the and PARC g. New g－2 experiment at J-PARC[J]. Chinese Physics C, 2010, 34(6): 745-748. doi: 10.1088/1674-1137/34/6/022

Tsutomu Mibe, for the and PARC g. New g－2 experiment at J-PARC[J]. Chinese Physics C, 2010, 34(6): 745-748. doi: 10.1088/1674-1137/34/6/022 shu

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Received: 2010-02-22
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

New g－2 experiment at J-PARC

Corresponding author: Tsutomu Mibe,

KEK, High Energy Accelerator Research Organization, 1-1, Oho, Tsukuba, Ibaraki, 305-0801, Japan

Received Date: 2010-02-22
Accepted Date: 1900-01-01
Available Online: 2010-06-05

Abstract:

A new measurement of the anomalous magnetic moment of the positive muon a_μ is proposed with a novel technique utilizing an ultra-cold muon beam accelerated to 300 MeV/c and a 66 cm-diameter muon storage ring without focusing-electric field. This measurement will be complimentary to the previous measurement that achieved 0.54 ppm accuracy with the magic energy of 3.1 GeV in a 14 m diameter storage ring. The proposed experiment aims to achieve the sensitivity down to 0.1 ppm.