Spectral analysis of gluonic pole matrix elements

Leonard Gamberg; Asmita Mukherjee; Piet Mulders

doi:10.3360/dis.2008.226

Spectral analysis of gluonic pole matrix elements

Leonard Gamberg, Asmita Mukherjee, Piet Mulders

Division of Science (Berks)

Research output: Contribution to conference › Paper › peer-review

Abstract

We use a spectator framework to investigate the spectral properties of quark-quark-gluon correlators and use this to study gluonic pole matrix elements. Such matrix elements appear in principle both for distribution functions such as the Sivers function and fragmentation functions such as the Collins function. We find that the contribution of the gluonic pole matrix element in fragmentation functions vanishes. This outcome is important in the study of universality for fragmentation functions.

Original language	English (US)
DOIs	https://doi.org/10.3360/dis.2008.226
State	Published - 2008
Event	16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008 - London, United Kingdom Duration: Apr 7 2008 → Apr 11 2008

Other

Other	16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008
Country/Territory	United Kingdom
City	London
Period	4/7/08 → 4/11/08

All Science Journal Classification (ASJC) codes

Radiation

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10.3360/dis.2008.226

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title = "Spectral analysis of gluonic pole matrix elements",

abstract = "We use a spectator framework to investigate the spectral properties of quark-quark-gluon correlators and use this to study gluonic pole matrix elements. Such matrix elements appear in principle both for distribution functions such as the Sivers function and fragmentation functions such as the Collins function. We find that the contribution of the gluonic pole matrix element in fragmentation functions vanishes. This outcome is important in the study of universality for fragmentation functions.",

author = "Leonard Gamberg and Asmita Mukherjee and Piet Mulders",

year = "2008",

doi = "10.3360/dis.2008.226",

language = "English (US)",

note = "16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008 ; Conference date: 07-04-2008 Through 11-04-2008",

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T1 - Spectral analysis of gluonic pole matrix elements

AU - Gamberg, Leonard

AU - Mukherjee, Asmita

AU - Mulders, Piet

PY - 2008

Y1 - 2008

N2 - We use a spectator framework to investigate the spectral properties of quark-quark-gluon correlators and use this to study gluonic pole matrix elements. Such matrix elements appear in principle both for distribution functions such as the Sivers function and fragmentation functions such as the Collins function. We find that the contribution of the gluonic pole matrix element in fragmentation functions vanishes. This outcome is important in the study of universality for fragmentation functions.

AB - We use a spectator framework to investigate the spectral properties of quark-quark-gluon correlators and use this to study gluonic pole matrix elements. Such matrix elements appear in principle both for distribution functions such as the Sivers function and fragmentation functions such as the Collins function. We find that the contribution of the gluonic pole matrix element in fragmentation functions vanishes. This outcome is important in the study of universality for fragmentation functions.

UR - http://www.scopus.com/inward/record.url?scp=85088721275&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85088721275&partnerID=8YFLogxK

U2 - 10.3360/dis.2008.226

DO - 10.3360/dis.2008.226

M3 - Paper

AN - SCOPUS:85088721275

T2 - 16th International Workshop on Deep-Inelastic Scattering and Related Topics, DIS 2008

Y2 - 7 April 2008 through 11 April 2008

ER -

Spectral analysis of gluonic pole matrix elements

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