Chinese Physics C > 1991, Vol. 15 > Issue(5): 473-476

A Harbour for Strong CP Problem——Heavy Quarks

WU Dan-Di^,,
HUANG Zheng

Institute of High Energy Physics,Academia Sinica,Beijing 1000391 Department of Physics,Simon Fraser University Burnaby B.C.Canada V5A 1S6

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Abstract：
Missing points in previous literature about strong CP are remarked.Emphasis is put on vacuum alignment with heavy quark taking into account.After obtaining the master equations of vacuum alignment,we point out that mC ^d=0 is the sufficient and necessary condition for =0,where m is the mass of a quark and C ^dthe dynamical condensate of the same quark.People have discussed the scenario with a vanishing u quark mass.We propose here a different scenario with C ^d=0 where C ^dis the dynamical condensate of a heavy quark.

References

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Z. Huang, K. S. Viswanathan and D. D., Wu, Simon Fraser Preprint, SFU-July-90-1, TO Be punlished; Z. Huang and D. D. Wu, SFU-July-90-2, Comm. Theo. iPhys/i. (Beijing), in press.[2] R. Dashen, iPhys/i. iRev/i, D3(1971), 1879.[3] R. Crewther, in Field theoretical, Methods in Partical Physics, NATO Advance Study Institute, Kaiser-slautern, Germany, 1979, ed. W. Ruhl(Plenum Press, New York and London, 1980); P. Di Vecchia and G. Veneziano, iPhys/i, B171(1980), 253; E. Witten, Ann. phys. (NY)128(1980), 363. G't Hooft, iPhys/i. Rep., 142(1986), 357, see Eq.(2.27).[4] Z. Huang and D. D. WU, SFU-July-90-3.[5] B. McKellar and D. D. Wu, in preoaration.

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WU Dan-Di and HUANG Zheng. A Harbour for Strong CP Problem——Heavy Quarks[J]. Chinese Physics C, 1991, 15(5): 473-476.

WU Dan-Di and HUANG Zheng. A Harbour for Strong CP Problem——Heavy Quarks[J]. Chinese Physics C, 1991, 15(5): 473-476. shu

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Received: 1900-01-01
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

A Harbour for Strong CP Problem——Heavy Quarks

WU Dan-Di^,
HUANG Zheng

Corresponding author:WU Dan-Di,

Institute of High Energy Physics,Academia Sinica,Beijing 1000391 Department of Physics,Simon Fraser University Burnaby B.C.Canada V5A 1S6

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1991-05-05

Abstract:Missing points in previous literature about strong CP are remarked.Emphasis is put on vacuum alignment with heavy quark taking into account.After obtaining the master equations of vacuum alignment,we point out that mC^d=0 is the sufficient and necessary condition for =0,where m is the mass of a quark and C ^dthe dynamical condensate of the same quark.People have discussed the scenario with a vanishing u quark mass.We propose here a different scenario with C ^d=0 where C ^dis the dynamical condensate of a heavy quark.