RT Journal Article T1 Velocity fluctuations of fission fragment. A1 Llanes Estrada, Felipe José A1 Martínez Carmona, Belén A1 Muñoz Martínez, José L. AB We propose event by event velocity fluctuations of nuclear fission fragments as an additional interesting observable that gives access to the nuclear temperature in an independent way from spectral measurements and relates the diffusion and friction coefficients for the relative fragment coordinate in Kramers-like models (in which some aspects of fission can be understood as the diffusion of a collective variable through a potential barrier). We point out that neutron emission by the heavy fragments can be treated in effective theory if corrections to the velocity distribution are needed. PB World Scientific Publ. Co. SN 0218-3013 YR 2016 FD 2016-02 LK https://hdl.handle.net/20.500.14352/24428 UL https://hdl.handle.net/20.500.14352/24428 LA eng NO © 2016 World Scientific Publishing Co Pte Ltd.The work of FJLE relied on the Spanish Excellence Network on Hadronic Physics FIS2014-57026-REDT, and grants UCM:910309, MINECO:FPA2014-53375-C2-1-P. He also thanks the Department of Energy's Institute for Nuclear Theory at the University of Washington for its partial support and hospitality, particularly George Bertsch for advising on the manuscript. NO Ministerio de Economía y Competitividad (MINECO), España NO Spanish Excellence Network on Hadronic Physics (Hadronet) NO Universidad Complutense de Madrid (UCM) NO Department of Energy's Institute for Nuclear Theory (University of Washington) DS Docta Complutense RD 18 abr 2025