有哪些信誉好的足球投注网站- 1、本文档共5页，可阅读全部内容。
- 2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
- 3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
查看更多
On Possibility of Higgs Mechanism Break Down Due to the Instantons
a
r
X
i
v
:
h
e
p
-
p
h
/
0
0
0
8
2
5
3
v
1
2
4
A
u
g
2
0
0
0
ON POSSIBILITY OF HIGGS MECHANISM BREAK
DOWN DUE TO THE INSTANTONS
Roman G. Shulyakovsky
Institute of Physics, National Academy of Sciences of Belarus,
F.Scorina av.,68, Minsk 220072
BELARUS
e-mail: shul@dragon.bas-net.by
ABSTRACT
Two-dimensional Abelian Higgs model is considered. It is shown that Higgs
mechanism of the gauge bosons masses generating is broken in presence of in-
stantons. It is supposed that discussion can be generalized into the standard
model of electroweak interactions.
1 Introduction
It is well known that some field theories (including QCD and Weinberg-Salam
model) have the degenerated vacuum structure on the classical level [1]. Un-
equivalent classical vacua are characterized by different Chern-Simons numbers
N and separated by the energy barriers. Amplitude of the tunneling through
these barriers is nonzero if the theory admits instantons [2, 3] (classical finite-
action Euclidean solutions). Thus classical degeneration disappears due to the
instantons. The correct vacuum state is approximately linear combination of
the naive classical vacua with different N .
Ordinary perturbative theory corresponds to the N = 0. It is quite naturally
that taking into account of the another vacua with N 6= 0 leads to the essential
consequences. Let us remind the most important of them.
1. Instantons lead to the charge confinement in the 2-dimensional Abelian
Higgs model [4] and 3-dimensional non-Abelian Higgs model [5].
2.In the electroweak theory instantons induce baryon and lepton numbers
violation [3] which can be connected with the matter and antimatter asymmetry
of the Universe [6].
3.In QCD instantons lead to the quark and gluon condensates formation,
spontaneously break chiral symmetry, solve U(1)-problem [3]. It was suggested
1
that QCD-instantons can be produced in deep-inelastic scattering [7] and iden-
tified by means of the analysis of the final states at HERA(DESY) [8].
We would
您可能关注的文档
- Meal&Restaurants.ppt
- Meal_Plan_Brochure_2010-2011.pdf
- Measure mucertainty.pdf
- Measurement of Charm and Beauty Photoproduction at HERA using D μ Correlations.pdf
- Measurement of Branching Fractions and Charge Asymmetries for Exclusive B Decays to Charmon.pdf
- Measurement of charm fragmentation ratios and fractions in photoproduction at HERA.pdf
- Measurement of D+- production and the charm contribution to F_2 in deep inelastic scatterin.pdf
- Measuring V_ub in Inclusive B Decays to Charm.pdf
- meat science.pdf
- Meat protein.pdf
文档评论（0）