Anomalous evolution of nonsinglet nucleon structure functions

Richard D. Ball; Vincenzo Barone; Stefano Forte; Marco Genovese

doi:10.1016/0370-2693(94)91096-0

Anomalous evolution of nonsinglet nucleon structure functions

Richard D. Ball
, Vincenzo Barone
, Stefano Forte
, Marco Genovese

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

Abstract

We calculate the scale dependence of nonsinglet nucleon structure functions. Due to anomalous axial symmetry breaking alarge flavour asymmetry of the quark-antiquark sea is generated nonperturbatively. This produces a strong scale dependenceof the nonsinglet structure function in an intermediate range of Q². Evolving nonperturbatively a pure valence distributionfrom an infrared scale we can thus compute F₂^p-F₂ⁿ as measured by the NMC, and give detailed predictions for its Q²dependence at fixed x. We also compare our results with Drell-Yan data.

Original language	English
Pages (from-to)	505-513
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	329
Issue number	4
DOIs	https://doi.org/10.1016/0370-2693(94)91096-0
Publication status	Published - 23 Jun 1994
Externally published	Yes

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title = "Anomalous evolution of nonsinglet nucleon structure functions",

abstract = "We calculate the scale dependence of nonsinglet nucleon structure functions. Due to anomalous axial symmetry breaking alarge flavour asymmetry of the quark-antiquark sea is generated nonperturbatively. This produces a strong scale dependenceof the nonsinglet structure function in an intermediate range of Q2. Evolving nonperturbatively a pure valence distributionfrom an infrared scale we can thus compute F2p-F2n as measured by the NMC, and give detailed predictions for its Q2dependence at fixed x. We also compare our results with Drell-Yan data.",

author = "Ball, \{Richard D.\} and Vincenzo Barone and Stefano Forte and Marco Genovese",

note = "Funding Information: I On leave from a Royal Society University Research Fellowship. 2 On leave from INFN, Sezione di Torino, Italy",

year = "1994",

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doi = "10.1016/0370-2693(94)91096-0",

language = "English",

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journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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T1 - Anomalous evolution of nonsinglet nucleon structure functions

AU - Ball, Richard D.

AU - Barone, Vincenzo

AU - Forte, Stefano

AU - Genovese, Marco

N1 - Funding Information: I On leave from a Royal Society University Research Fellowship. 2 On leave from INFN, Sezione di Torino, Italy

PY - 1994/6/23

Y1 - 1994/6/23

N2 - We calculate the scale dependence of nonsinglet nucleon structure functions. Due to anomalous axial symmetry breaking alarge flavour asymmetry of the quark-antiquark sea is generated nonperturbatively. This produces a strong scale dependenceof the nonsinglet structure function in an intermediate range of Q2. Evolving nonperturbatively a pure valence distributionfrom an infrared scale we can thus compute F2p-F2n as measured by the NMC, and give detailed predictions for its Q2dependence at fixed x. We also compare our results with Drell-Yan data.

AB - We calculate the scale dependence of nonsinglet nucleon structure functions. Due to anomalous axial symmetry breaking alarge flavour asymmetry of the quark-antiquark sea is generated nonperturbatively. This produces a strong scale dependenceof the nonsinglet structure function in an intermediate range of Q2. Evolving nonperturbatively a pure valence distributionfrom an infrared scale we can thus compute F2p-F2n as measured by the NMC, and give detailed predictions for its Q2dependence at fixed x. We also compare our results with Drell-Yan data.

UR - https://www.scopus.com/pages/publications/0000514651

U2 - 10.1016/0370-2693(94)91096-0

DO - 10.1016/0370-2693(94)91096-0

M3 - Article

SN - 0370-2693

VL - 329

SP - 505

EP - 513

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4

ER -

Anomalous evolution of nonsinglet nucleon structure functions

Abstract

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