PROTON DECAY RATE AND THE PROTON WAVEFUNCTION

  • The pionic two body decay process of the proton is discussed in the SU(5) grand unification theory by using the field-current relation of the composite particle and the soft pion approximations. We connect the proton decay process with the J/ψ→pp decay amplitude and determine the wavefunction at the origin from the experimental value of the decay rate J/ψ→pp, hence we can obtain the value of the proton decay lifetime. In order to estimate the uncertainty of the proton decay lifetime due to the proton wavefunction at the origin, the lower bound of it is analysed by using an interesting model. If taking ΛMS=200 MeV, it will be a serious test for the minimal SU(5) grand unified gauge theory. It should be noted that this method which connect the proton decay process with other relavant processes will be very useful to determine the proton decay lifetime.
  • 加载中
  • [1] A. J. Buras, J. Ellis, M. K.Gaillard and D. V. Nanopoulos, Nucl. Phys., B135 (1978). 66; T.Goldman and D. A. Ross, Nucl. phys., B171 (1980), 273; M. B. Gavela, A. Le Yaouanc, L.Ohrer, D. Dene and J. C. Raynal., Phys. Lett., 98B (1981), 51 and Phys. Rev., D23 (1981),1580.[2] A. Din, G. Girari and P. Sorba, Phys. Lett., 91B (1980), 77; J. F. Donoghue, Phys. Lett., 92B(1980). 99; E. Golowich, Phys. Rev., D22 (1980), 1148.[3] 勾亮, 郝春, 高能物理与核物理,7(1983),437.[4] Tomazaws, Phys. Rev. Lett., 46 (1981). 463; V. S. Berezinsky, B. L. Ioffe and Ya. I. Kogan,Phys. Lett., 105B (1981). 33.[5] 见[1].[6] L. Hall, Nucl. Phys., B178 (1981). 75; H. A. welden and A. Zee, Nucl. Phys., B173 (1980),169; J. Ellis, M. K. Gaillard and D. V. Nanopoulos, Phys. Lett., 88B (1980), 320.[7] 何柞麻, 黄涛,《中国科学》, 18(1975), 502; 何柞麻, 黄涛, 《科学通报》, 21(1976), 35; HO Tso-hsiu ,Huang Tao, Phys. Rev., D22 (1980), 744.[8] R. P. Feynman. M. Kislinger and F. Ravndal Phys. Rev., D3 (1971). 2706; R. Lipes. Phys.Rev., D5 (1972), 2849.[9] G. P. Lepage, S. J. Brodsky, Tao Huang, P. B. Mackenzie CLNS-82-522 (1982) Published in the Proceedings of the Banff Summerr Institute on Particles and Fields, edited by A. Capri and A. N. Kamal (Plenum Press, 1982).[10] S. J. Brodsky, G. P. Lepage, Phys. Rev., D24 (1981), 1808.[11] 5. J. Brodsky Tao Huang, G. P. Lepage SLAC-PUB-2868 Published in "Quarks and Nuclear Forces" edited by D. Fries and B. Zeitnitz, Springfield (1982).[12] S. J. Brodsky, G. P. Lepage, Phys. Rev. D24 (1981), 2848.[13] S. J. Brodsky, G. P. Lepage, Phys. Lett 87B (1979), 359.[14] S L. Brodsky, Tao Huang and G. P. Lepaae Published in the Proceedings of the SLAC Summer Institute on Particle Physica (1981).[15] T. Goldman and D. A. Ross, Nucl. Phys., B171(1980), 273; J. Ellis et al., Nucl. Phys., B176(1980), 61; C. H. Llewellyn Smith, G. G. Boss and J. Wheater, Nucl. Phys., B177(1981), 263;W. J. Marciano and A. Sirlin, Phys. Ilev. Lett., 46(1981), 163.[16] A. J. Buras, Rapporteur talk at the 1981 Bonn Symposium on Lepton and Photon Interactions at High Energies.[17] 印度一日本组在廿一届高能物理会议上的报告(1982, 7)
  • 加载中

Get Citation
GOU Liang and HUANG Tao. PROTON DECAY RATE AND THE PROTON WAVEFUNCTION[J]. Chinese Physics C, 1984, 8(1): 45-51.
GOU Liang and HUANG Tao. PROTON DECAY RATE AND THE PROTON WAVEFUNCTION[J]. Chinese Physics C, 1984, 8(1): 45-51. shu
Milestone
Received: 1982-11-23
Revised: 1900-01-01
Article Metric

Article Views(2359)
PDF Downloads(491)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

PROTON DECAY RATE AND THE PROTON WAVEFUNCTION

    Corresponding author: GOU Liang,

Abstract: The pionic two body decay process of the proton is discussed in the SU(5) grand unification theory by using the field-current relation of the composite particle and the soft pion approximations. We connect the proton decay process with the J/ψ→pp decay amplitude and determine the wavefunction at the origin from the experimental value of the decay rate J/ψ→pp, hence we can obtain the value of the proton decay lifetime. In order to estimate the uncertainty of the proton decay lifetime due to the proton wavefunction at the origin, the lower bound of it is analysed by using an interesting model. If taking ΛMS=200 MeV, it will be a serious test for the minimal SU(5) grand unified gauge theory. It should be noted that this method which connect the proton decay process with other relavant processes will be very useful to determine the proton decay lifetime.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return