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つくばリポジトリ (Tulips-R) >
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Physical review D >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/2241/89313
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| Title: | Lattice QCD calculation of the proton decay matrix element in the continuum limit |
| Authors: | Tsutsui, N.
Aoki, S.
Fukugita, M.
Hashimoto, S.
Ishikawa, K-I.
Ishizuka, N.
Iwasaki, Y.
Kanaya, K.
Kaneko, T.
Kuramashi, Y.
Okawa, M.
Onogi, T.
Taniguchi, Y.
Ukawa, A.
Yoshié, T.
岩崎, 洋一
宇川, 彰 |
| Issue Date: | Dec-2004 |
| Publisher: | American Physical Society |
| Journal Title: | Physical review D |
| Volume: | 70 |
| Issue: | 11 |
| Start Page: | 111501 |
| DOI: | 10.1103/PhysRevD.70.111501 |
| Abstract: | We present a quenched lattice QCD calculation of the alpha and beta parameters of the proton decay matrix element. The simulation is carried out using the Wilson quark action at three values of the lattice spacing in the range a[approximate]0.1-0.064 fm to study the scaling violation effect. We find only mild scaling violation when the lattice scale is determined by the nucleon mass. We obtain in the continuum limit, |alpha(NDR,2 GeV)|=0.0090(09)(+5-19) GeV3 and |beta(NDR,2 GeV)|=0.0096(09)(+6-20) GeV3 with alpha and beta in a relatively opposite sign, where the first error is statistical and the second is due to the uncertainty in the determination of the physical scale. |
| URI: | http://hdl.handle.net/2241/89313 |
| Rights: | ©2004 The American Physical Society |
| Text Version: | publisher |
| Appears in Collections: | Physical review D
岩崎 洋一 (Iwasaki Yoichi)
宇川 彰 (Ukawa Akira)
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