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Unintegrated parton distributions and electroweak boson production at hadron colliders | | G. Watt
; A.D. Martin
; M.G. Ryskin
; | | Date: |
9 Sep 2003 | | Journal: | Phys.Rev. D70 (2004) 014012; Erratum-ibid. D70 (2004) 079902 DOI: 10.1103/PhysRevD.70.014012 | | Subject: | hep-ph | | Abstract: | We describe the use of doubly-unintegrated parton distributions in hadron-hadron collisions, using the (z,k_t)-factorisation prescription where the transverse momentum of the incoming parton is generated in the last evolution step. We apply this formalism to calculate the transverse momentum (P_T) distributions of produced W and Z bosons and compare the predictions to Tevatron Run 1 data. We find that the observed P_T distributions can be generated almost entirely by the leading order q_1 q_2 -> W,Z subprocesses, using known and universal doubly-unintegrated quark distributions. We also calculate the P_T distribution of the Standard Model Higgs boson at the LHC, where the dominant production mechanism is by gluon-gluon fusion. | | Source: | arXiv, hep-ph/0309096 | | Services: | Forum | Review | PDF | Favorites | |
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