European Physical Journal C: Particles and Fields European Physical Journal C: Particles and Fields, 2012, 72, 1844 (35 p.). ⟨10.1140/epjc/s10052-011-1844-6⟩ Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP European Physical Journal C, 72, 1, pp. 1844 Digibug: Repositorio Institucional de la Universidad de Granada Universidad de Granada (UGR) The European Physical Journal. C, Particles and Fields, Vol. 72, No 1844 (2012) P. 35 SEDICI (UNLP) Universidad Nacional de La Plata instacron:UNLP European Physical Journal C, 72, 1844 European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2012, 72, 1844 (35 p.). ⟨10.1140/epjc/s10052-011-1844-6⟩ Springer Digibug. Repositorio Institucional de la Universidad de Granada instname The European physical journal / C 72, 1844 (2012). doi:10.1140/epjc/s10052-011-1844-6 European Physical Journal C. Particles and Fields European Physical Journal C, 72(1):1844. Springer New York