Non-perturbative processes at high energies in weakly coupled theories: Multi-instantons set an early limit

Michele Maggiore; Mikhail Shifman

doi:10.1016/0550-3213(92)90234-3

Non-perturbative processes at high energies in weakly coupled theories: Multi-instantons set an early limit

Michele Maggiore, Mikhail Shifman

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

We study the role of multi-instanton configurations in the multiparticle production at high energies in the standard model. A critical point s_∞ is found where one, two, three, etc. instanton-anti-instanton pairs give comparable contributions to the total cross section. For energies above this point the instanton approximation collapses. It is found that at the critical point the total cross section is still exponentially small.

Original language	English (US)
Pages (from-to)	177-190
Number of pages	14
Journal	Nuclear Physics, Section B
Volume	371
Issue number	1-2
DOIs	https://doi.org/10.1016/0550-3213(92)90234-3
State	Published - Mar 2 1992

Bibliographical note

Funding Information:
The authors are grateful to V. Chernyak, M. Marinov and A. Vainshtein for useful discussions. It is a pleasure to thank L. Glazman who draw our attention to ref. \[29\].The work of M.M. was supported by a grant from Istituto Nazionale di Fisica Nucleare (INFN).

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Copyright 2014 Elsevier B.V., All rights reserved.

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title = "Non-perturbative processes at high energies in weakly coupled theories: Multi-instantons set an early limit",

abstract = "We study the role of multi-instanton configurations in the multiparticle production at high energies in the standard model. A critical point s∞ is found where one, two, three, etc. instanton-anti-instanton pairs give comparable contributions to the total cross section. For energies above this point the instanton approximation collapses. It is found that at the critical point the total cross section is still exponentially small.",

author = "Michele Maggiore and Mikhail Shifman",

note = "Funding Information: The authors are grateful to V. Chernyak, M. Marinov and A. Vainshtein for useful discussions. It is a pleasure to thank L. Glazman who draw our attention to ref. \[29\].The work of M.M. was supported by a grant from Istituto Nazionale di Fisica Nucleare (INFN). Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

year = "1992",

month = mar,

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doi = "10.1016/0550-3213(92)90234-3",

language = "English (US)",

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pages = "177--190",

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T1 - Non-perturbative processes at high energies in weakly coupled theories

T2 - Multi-instantons set an early limit

AU - Maggiore, Michele

AU - Shifman, Mikhail

N1 - Funding Information: The authors are grateful to V. Chernyak, M. Marinov and A. Vainshtein for useful discussions. It is a pleasure to thank L. Glazman who draw our attention to ref. \[29\].The work of M.M. was supported by a grant from Istituto Nazionale di Fisica Nucleare (INFN). Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 1992/3/2

Y1 - 1992/3/2

N2 - We study the role of multi-instanton configurations in the multiparticle production at high energies in the standard model. A critical point s∞ is found where one, two, three, etc. instanton-anti-instanton pairs give comparable contributions to the total cross section. For energies above this point the instanton approximation collapses. It is found that at the critical point the total cross section is still exponentially small.

AB - We study the role of multi-instanton configurations in the multiparticle production at high energies in the standard model. A critical point s∞ is found where one, two, three, etc. instanton-anti-instanton pairs give comparable contributions to the total cross section. For energies above this point the instanton approximation collapses. It is found that at the critical point the total cross section is still exponentially small.

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U2 - 10.1016/0550-3213(92)90234-3

DO - 10.1016/0550-3213(92)90234-3

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AN - SCOPUS:0013216949

SN - 0550-3213

VL - 371

SP - 177

EP - 190

JO - Nuclear Physics, Section B

JF - Nuclear Physics, Section B

IS - 1-2

ER -

Non-perturbative processes at high energies in weakly coupled theories: Multi-instantons set an early limit

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