TY - JOUR
T1 - P-wave contribution to third-order top-quark pair production near threshold
AU - Beneke, M.
AU - Piclum, J.
AU - Rauh, T.
N1 - Funding Information:
This work has been supported by the DFG Sonderforschungsbereich/Transregio 9 “Computergestützte Theoretische Teilchenphysik”, the Gottfried Wilhelm Leibniz programme of the Deutsche Forschungsgemeinschaft (DFG) , and the DFG cluster of excellence “Origin and Structure of the Universe”.
PY - 2014/3
Y1 - 2014/3
N2 - The next-to-leading order (NLO) P-wave Coulomb Green function contributes at third-order to top-pair production in e +e - collisions near threshold. In this paper we compute the NLO P-wave Green function in dimensional regularization, as required for a consistent combination with non-resonant production of the W+W-bb- final state, and present a phenomenological analysis of the P-wave contribution. We further briefly discuss squark production near threshold and top-pair production in γγ collisions, where no S-wave contribution is present, and the P-wave thus constitutes the dominant production process.
AB - The next-to-leading order (NLO) P-wave Coulomb Green function contributes at third-order to top-pair production in e +e - collisions near threshold. In this paper we compute the NLO P-wave Green function in dimensional regularization, as required for a consistent combination with non-resonant production of the W+W-bb- final state, and present a phenomenological analysis of the P-wave contribution. We further briefly discuss squark production near threshold and top-pair production in γγ collisions, where no S-wave contribution is present, and the P-wave thus constitutes the dominant production process.
UR - http://www.scopus.com/inward/record.url?scp=84893407705&partnerID=8YFLogxK
U2 - 10.1016/j.nuclphysb.2014.01.015
DO - 10.1016/j.nuclphysb.2014.01.015
M3 - Article
AN - SCOPUS:84893407705
SN - 0550-3213
VL - 880
SP - 414
EP - 434
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 1
ER -