Soft partons in QCD

John C. Collins; George Sterman

doi:10.1016/0550-3213(81)90370-9

Soft partons in QCD

John C. Collins, George Sterman

Physics

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

119 Scopus citations

Abstract

The role of partons with momenta much less than the c.m. energy is studied in general n-particle inclusive annihilation cross sections. The cancellation of non-factorizing logarithms associated with these partons is demonstrated in physical gauges. This is seen to be equivalent to cancellation of a set of infrared divergences in the massless limit. Connections with cut vertices and more complicated processes are discussed.

Original language	English (US)
Pages (from-to)	172-188
Number of pages	17
Journal	Nuclear Physics, Section B
Volume	185
Issue number	1
DOIs	https://doi.org/10.1016/0550-3213(81)90370-9
State	Published - Jul 13 1981

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/0550-3213(81)90370-9

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title = "Soft partons in QCD",

abstract = "The role of partons with momenta much less than the c.m. energy is studied in general n-particle inclusive annihilation cross sections. The cancellation of non-factorizing logarithms associated with these partons is demonstrated in physical gauges. This is seen to be equivalent to cancellation of a set of infrared divergences in the massless limit. Connections with cut vertices and more complicated processes are discussed.",

author = "Collins, {John C.} and George Sterman",

note = "Funding Information: 1 Research supported by the US Department of Energy under contract number DE-AC02-80ER10712 A000. 2 Supported in part by the National Science Foundation grant no. PHY-79-06376A01.",

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AU - Sterman, George

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N2 - The role of partons with momenta much less than the c.m. energy is studied in general n-particle inclusive annihilation cross sections. The cancellation of non-factorizing logarithms associated with these partons is demonstrated in physical gauges. This is seen to be equivalent to cancellation of a set of infrared divergences in the massless limit. Connections with cut vertices and more complicated processes are discussed.

AB - The role of partons with momenta much less than the c.m. energy is studied in general n-particle inclusive annihilation cross sections. The cancellation of non-factorizing logarithms associated with these partons is demonstrated in physical gauges. This is seen to be equivalent to cancellation of a set of infrared divergences in the massless limit. Connections with cut vertices and more complicated processes are discussed.

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Soft partons in QCD

Abstract

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