TY - JOUR
T1 - Soft-collinear messengers
T2 - A new mode in soft-collinear effective theory
AU - Becher, Thomas
AU - Hill, Richard J.
AU - Neubert, Matthias
PY - 2004
Y1 - 2004
N2 - It is argued that soft-collinear effective theory for processes involving both soft and collinear partons, such as exclusive B-meson decays, should include a new mode in addition to soft and collinear ones. These “soft-collinear messengers” can interact with both soft and collinear particles without taking them far off-shell. They thus can communicate between the soft and collinear sectors of the theory. The relevance of the new mode is demonstrated with an explicit example, and the formalism incorporating the corresponding quark and gluon fields into the effective Lagrangian is developed.
AB - It is argued that soft-collinear effective theory for processes involving both soft and collinear partons, such as exclusive B-meson decays, should include a new mode in addition to soft and collinear ones. These “soft-collinear messengers” can interact with both soft and collinear particles without taking them far off-shell. They thus can communicate between the soft and collinear sectors of the theory. The relevance of the new mode is demonstrated with an explicit example, and the formalism incorporating the corresponding quark and gluon fields into the effective Lagrangian is developed.
UR - https://www.scopus.com/pages/publications/1942477312
UR - https://www.scopus.com/pages/publications/1942477312#tab=citedBy
U2 - 10.1103/PhysRevD.69.054017
DO - 10.1103/PhysRevD.69.054017
M3 - Article
AN - SCOPUS:1942477312
SN - 1550-7998
VL - 69
SP - 13
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 5
ER -