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Braun, V. M. ; Kivel, N. ; Strohmaier, M. ; Vladimirov, A. A.

Electroproduction of tensor mesons in QCD

Braun, V. M., Kivel, N., Strohmaier, M. and Vladimirov, A. A. (2016) Electroproduction of tensor mesons in QCD. Journal of High Energy Physics 2016 (6), p. 39.

Date of publication of this fulltext: 25 Apr 2018 13:34
Article
DOI to cite this document: 10.5283/epub.37202


Abstract

Due to multiple possible polarizations hard exclusive production of tensor mesons by virtual photons or in heavy meson decays offers interesting possibilities to study the helicity structure of the underlying short-distance process. Motivated by the first measurement of the transition form factor gamma*gamma -> f(2)(1270) at large momentum transfers by the BELLE collaboration we present an ...

Due to multiple possible polarizations hard exclusive production of tensor mesons by virtual photons or in heavy meson decays offers interesting possibilities to study the helicity structure of the underlying short-distance process. Motivated by the first measurement of the transition form factor gamma*gamma -> f(2)(1270) at large momentum transfers by the BELLE collaboration we present an improved QCD analysis of this reaction in the framework of collinear factorization including contributions of twist-three quark-antiquark-gluon operators and an estimate of soft end-point corrections using light-cone sum rules. The results appear to be in good agreement with the data, in particular the predicted scaling behavior is reproduced in all cases.



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Details

Item typeArticle
Journal or Publication TitleJournal of High Energy Physics
Publisher:Springer
Place of Publication:NEW YORK
Volume:2016
Number of Issue or Book Chapter:6
Page Range:p. 39
Date7 June 2016
Additional Information (public)SCOAP3
InstitutionsPhysics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun
Identification Number
ValueType
10.1007/JHEP06(2016)039DOI
KeywordsTWIST DISTRIBUTION AMPLITUDES; FREE GAUGE-THEORIES; CONE SUM-RULES; FORM-FACTORS; PI-PI; QUANTUM CHROMODYNAMICS; EXCLUSIVE PROCESSES; GAMMA-ASTERISK; VECTOR-MESONS; DISTRIBUTIONS; QCD Phenomenology; NLO Computations
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-372029
Item ID37202

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