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Phys. Rev. D 71, 011502(R) (2005) [4 pages]

Zero mode effect in the 1-+ four quark states

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Z. F. Zhang1 and H. Y. Jin1,2
1Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Zhejiang Province, People's Republic of China
2CTP, Institute of Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

Received 16 November 2004; published 12 January 2005

We calculate the masses of the 1-+ four quark states which decay dominantly into ρπ and ηπ, respectively, by QCD sum rules approach. We include the zero mode contribution and find it plays an important role in the sum rules. We predict that the masses of the states ηπ and ρπ both are 1.4–1.5 GeV. This is close to the experimental candidates π1(1370) and π1(1440).

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.71.011502
DOI:
10.1103/PhysRevD.71.011502
PACS:
12.38.Lg, 12.39.Mk
 
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