Photon pairs: Quantum chromodynamics continuum and the Higgs boson

Pramana

Edmond L Berger1¹ 

[1] High Energy Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA$$

关键词: Higgs;    photon pairs;    quantum chromodynamics.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

A new QCD calculation is summarized for the transverse momentum distribution of photon pairs produced by QCD subprocesses, including all-orders soft-gluon resummation valid at next-to-next-to-leading logarithmic accuracy. Resummation is needed to obtain reliable predictions in the range of transverse momentum where the cross-section is the largest. Results are compared with data from the Fermilab Tevatron and predictions are made for the large hadron collider. The QCD continuum is shown to have a softer spectrum than the Higgs boson signal at the LHC.

【 授权许可】

Unknown