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We study twist expansions for parton fragmentation functions based on the definition of the twist as an invariant matrix element of a light-cone, bilocal operator. The results are then applied to a method which might be used to extract higher twist e
Externí odkaz:
http://arxiv.org/abs/nucl-th/0505060
Autor:
Battistoni, Giuseppe, Broggi, Francesco, Brugger, Markus, Campanella, Mauro, Carboni, Massimo, Empl, Anton, Fassò, Alberto, Gadioli, Ettore, Cerutti, Francesco, Ferrari, Alfredo, Ferrari, Anna, Lantz, Matthias, Mairani, Andrea, Margiotta, M., Morone, Cristina, Muraro, Silvia, Parodi, Katia, Patera, Vincenzo, Pelliccioni, Mauricio, Pinsky, Larry, Ranft, Johannes, Roesler, Stefan, Rollet, Sofia, Sala, Paola R., Santana, Mario, Sarchiapone, Lucia, Sioli, Massimiliano, Smirnov, George, Sommerer, Florian, Theis, Christian, Trovati, Stefania, Villari, R., Vincke, Heinz, Vincke, Helmut, Vlachoudis, Vasilis, Vollaire, Joachim, Zapp, Neil
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, B 2011 269(24):2850-2856