Continuum limit of proton decay matrix elements in quenched lattice QCD
Nuclear Physics B Proceedings Supplements Volume 129-130
Page 284-286
published_at 2004
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| File | |
| Title ( eng ) |
Continuum limit of proton decay matrix elements in quenched lattice QCD
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| Creator |
CP-PACS Collaboration
JLQCD Collaboration
Tsutsui N
Aoki S
Fukugita M
Hashimoto S
Ishikawa T
Ishizuka N
Iwasaki Y
Kanaya K
Kaneko T
Kuramashi Y
Onogi T
Taniguch N
Ukawa A
Yoshié T
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| Source Title |
Nuclear Physics B Proceedings Supplements
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| Volume | 129-130 |
| Start Page | 284 |
| End Page | 286 |
| Abstract |
We present a lattice QCD calculation of the parameters α and β which are necessary in the theoretical estimation of the proton lifetime in grand unified theories (GUTs) using chiral lagrangian approach. The simulation is carried out using the Wilson quark action at three gauge coupling constants in the quenched approximation. We obtain |α(2GeV)|=0.0091(08)(-19+10)GeV3 and |β(2GeV)| = 0.0098(08) (-20+10)GeV3 in the continuum limit where the first error is statistical and the second one is due to scale setting.
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| NDC |
Physics [ 420 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
Elsevier Science B.V.
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| Date of Issued | 2004 |
| Rights |
Copyright (c) 2004 Elsevier Science B.V.
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| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0920-5632
[DOI] 10.1016/S0920-5632(03)02557-X
[DOI] http://dx.doi.org/10.1016/S0920-5632(03)02557-X
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