The BFKL-Regge factorization and F2b, F2c, FL at HERA: physics implications of nodal properties of the BFKL eigenfunctions View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2009-11-17

AUTHORS

K. Fiore, N. N. Nikolaev, V. R. Zoller

ABSTRACT

The asymptotic freedom is known to split the leading-log BFKL pomeron into a series of isolated poles in the complex angular momentum plane. One of our earlier findings was that the subleading hard BFKL exchanges decouple from such experimentally important observables as small-x charm F2c, beauty F2b and the longitudinal structure functions of the proton at moderately large Q2. For instance, we predicted precocious BFKL asymptotics of F2c(x, Q2) with intercept of the rightmost BFKL pole aIP(0) − 1 = ΔIP ≈ 0.4. On the other hand, the small-x open beauty photo- and electro-production probes the vacuum exchange for much smaller color dipoles which entails significant subleading vacuum pole corrections to the small-x behavior. In view of the accumulation of the experimental data on small-xF2c and F2b we extend our 1999 predictions to the kinematical domain covered by new HERA measurements. Our parameter-free results agree well with the determination of F2c, FL and published H1 results F2b on but slightly overshoot the very recent (2008, preliminary) H1 results on F2b. More... »

PAGES

319

References to SciGraph publications

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URI

http://scigraph.springernature.com/pub.10.1134/s0021364009170020

DOI

http://dx.doi.org/10.1134/s0021364009170020

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1043994445


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