Revisiting coupling selection rules in heterotic orbifold models
Revisiting coupling selection rules in heterotic orbifold models
复制标题
重新审视杂种优势轨道模型中的耦合选择规则
DOI:
10.1007/jhep05(2012)008
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发表时间:
2012
影响因子:
5.4
通讯作者:
I. Zavala
中科院分区:
文献类型:
--
作者:
T. Kobayashi;S. L. Parameswaran;S. Ramos-Sanchez;I. Zavala
We study L-point couplings between twisted sector fields in heterotic orbifold compactifications, using conformal field theory. Selection rules provide an easy way to identify which couplings are non-vanishing. Those used in the current literature are gauge invariance, R-charge conservation and the space group selection rule, but they are not the whole story. We revive and refine a fourth selection rule, due to symmetries in the underlying torus lattice, and introduce a fifth one, due to the existence or not of classical worldsheet instanton solutions to mediate the couplings. We consider briefly the phenomenological consequences of the additional rules, in particular for recent orbifold constructions whose field content correspond to that of the MSSM. The structure of the exotic mass matrices is unaltered and many dimension-5 proton-decay operators vanish.
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DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
I. Antoniadis;E. Gava;K. Narain;T. R. Taylor
通讯作者:
T. R. Taylor
影响因子:
4.4
作者:
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通讯作者:
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影响因子:
8.6
作者:
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通讯作者:
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DOI:
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发表时间:
1993
期刊:
影响因子:
--
作者:
D. Bailin;A. Love;W. Sabra
通讯作者:
W. Sabra
DOI:
10.1073/pnas.95.19.11039
发表时间:
1998-10
影响因子:
11.1
作者:
Brian R. Greene;David R. Morrison;Joseph Polchinski
通讯作者:
Brian R. Greene;David R. Morrison;Joseph Polchinski