Energy–energy correlation in electron–positron annihilation at NNLL + NNLO accuracy
نویسندگان
چکیده
منابع مشابه
Moments of event shapes in electron-positron annihilation at NNLO
This article gives the perturbative NNLO results for the moments of the most commonly used event shape variables associated to three-jet events in electron-positron annihilation: Thrust, heavy jet mass, wide jet broadening, total jet broadening, C parameter and the Durham three-to-two jet transition variable.
متن کاملTop Quark Total and Differential Cross Sections at Nnlo and Nnll
The top quark production cross section at the Tevatron receives contributions from the threshold region where there are potentially large corrections. Near threshold for the production of the tt̄ pair, there is restricted phase space for real gluon emission. This results in an incomplete cancellation of infrared divergences between real and virtual graphs which manifests itself in large logarith...
متن کاملNNLO corrections to 2-jet observables in electron-positron annihilation
I report on a numerical program, which can be used to calculate any infra-red safe twojet observable in electron-positron annihilation to next-to-next-to-leading order in the strong coupling constant αs. The calculation is based on the subtraction method. The result for the two-jet cross section is compared to the literature.
متن کاملNNLO moments of event shapes in e + e − annihilation
We compute the next-to-next-to-leading order (NNLO) QCD corrections to the first five moments of six event shape variables related to three-particle final states in electron-positron annihilation; the thrust, the heavy jet mass, the C-parameter, the wide and total jet broadenings and the three-to-two-jet transition parameter in the Durham algorithm Y3. The NNLO corrections to the first moment a...
متن کاملNNLO corrections to event shapes in e + e − annihilation
We compute the next-to-next-to-leading order (NNLO) QCD corrections to the six most important event shape variables related to three-particle final states in electronpositron annihilation. The corrections are sizeable for all variables, however their magnitude is substantially different for different observables. We observe that the NNLO corrections yield a considerably better agreement between...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2017
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-017-5320-9