Global analysis of fragmentation functions for pions and kaons and their uncertainties

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We present new sets of pion and kaon fragmentation functions obtained in next-to-leading order combined analyses of single-inclusive hadron production in electron-positron annihilation, proton-proton collisions, and deep-inelastic lepton-proton scattering with either pions or kaons identified in the...

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Autor principal: De Florian, D.
Otros Autores: Sassot, R., Stratmann, M.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2007
Acceso en línea:Registro en Scopus
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Biblioteca Central Dr. Luis F. Leloir (FCEN) de Universidad de Buenos Aires
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100 1 |a De Florian, D. 
245 1 0 |a Global analysis of fragmentation functions for pions and kaons and their uncertainties 
260 |c 2007 
270 1 0 |m De Florian, D.; Departamento de Fisica, Universidad de Buenos Aires, Pabellon 1, (1428) Buenos Aires, Argentina; email: deflo@df.uba.ar 
506 |2 openaire  |e Política editorial 
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520 3 |a We present new sets of pion and kaon fragmentation functions obtained in next-to-leading order combined analyses of single-inclusive hadron production in electron-positron annihilation, proton-proton collisions, and deep-inelastic lepton-proton scattering with either pions or kaons identified in the final state. At variance with all previous fits, the present analyses take into account data where hadrons of different electrical charge are identified, which allow one to discriminate quark from antiquark fragmentation functions without the need of nontrivial flavor symmetry assumptions. The resulting sets are in good agreement with all data analyzed, which cover a much wider kinematical range than in previous fits. An extensive use of the Lagrange multiplier technique is made in order to assess the uncertainties in the extraction of the fragmentation functions and the synergy from the complementary data sets in our global analysis. © 2007 The American Physical Society.  |l eng 
593 |a Departamento de Fisica, Universidad de Buenos Aires, Pabellon 1, (1428) Buenos Aires, Argentina 
593 |a Radiation Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan 
700 1 |a Sassot, R. 
700 1 |a Stratmann, M. 
773 0 |d 2007  |g v. 75  |k n. 11  |p Phys Rev D Part Fields Gravit Cosmol  |x 15507998  |t Physical Review D - Particles, Fields, Gravitation and Cosmology 
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856 4 0 |u https://doi.org/10.1103/PhysRevD.75.114010  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_15507998_v75_n11_p_DeFlorian  |y Handle 
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