Quark-mass effects for jet production in e+e− collisions at the next-to-leading order: results and applications
نویسندگان
چکیده
We present a detailed description of our calculation of next-to-leading order QCD corrections to heavy quark production in e+e− collisions including mass effects. In particular, we study the observables Rbl 3 and D bl 2 in the E, EM, JADE and DURHAM jet-clustering algorithms and show how one can use these observables to obtain mb(mZ) from data at the Z peak. PACS number(s): 12.15.Ff,12.38.Bx,13.87.Ce,14.65.Fy
منابع مشابه
Heavy quark mass effects in ee into three jets
Next-to-leading order calculation for three jet heavy quark production in ee collisions, including complete quark mass effects, is reviewed. Its applications at LEP/SLC are also discussed. to be published in the Proceedings of the High Energy Physics International Euroconference on Quantum Chromodinamics (QCD ’98), Montpellier, France, 3-9 Jul 1998. Ed. S. Narison, Nucl Phys. B (Proc. Suppl.). ...
متن کاملNLO CALCULATIONS OF THE THREE-JET HEAVY QUARK PRODUCTION IN e+e−-ANNIHILATION: STATUS AND APPLICATIONS∗
Next-to-leading order calculations for heavy quark three-jet production in e+eannihilation are reviewed. Their applications for the measurement of the b-quark mass at LEP/SLC and for the test of flavour independence of the strong coupling constant are discussed. to be published in the Proceedings of the XXIX International Conference on High Energy Physics, Vancouver, B.C. Canada, July 23-29, 19...
متن کاملThe top quark jet-function at two loops
Far above threshold the production process e+e− → tt̄ can be analyzed using effective field theories. In this talk we consider the invariant mass distribution of top-jets and report about our computation of the two-loop heavy quark jet-function. This is a key part of a next-to-next-to-leading order analysis, and already allows for a resummation of all large logs which effect the shape of the top...
متن کاملTop Quark Pair + Jet Production at Next-to-leading Order: Nlo Qcd Corrections to Gg → T ¯ Tg Top Quark Pair + Jet Production at Next-to-leading Order: Nlo Qcd Corrections to Gg → T ¯ Tg
The reaction pp/p ¯ p → t ¯ t +jet+X is an important background process for Higgs boson searches in the mass range below 200 GeV. Apart from that it is also an ideal laboratory for precision measurements in the top quark sector. Both applications require a solid theoretical prediction, which can be achieved only through a full next-to-leading order (NLO) calculation. In this work we describe th...
متن کاملNNLO results for heavy quark and direct photon production near threshold
Heavy quark and direct photon production in hadronic collisions are processes of great interest. The discovery of the top has increased efforts in the calculation of heavy quark production cross sections while direct photon production is important for determinations of gluon distributions. Near threshold for the production of the final state in these processes one can resum logarithmic correcti...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1999