Second-order QCD corrections to event shape distributions in deep inelastic scattering
نویسندگان
چکیده
منابع مشابه
Higher order QCD corrections to charged-lepton deep-inelastic scattering and global fits of parton distributions
We study the perturbative QCD corrections to heavy-quark structure functions of charged-lepton deep-inelastic scattering and their impact on global fits of parton distributions. We include the logarithmically enhanced terms near threshold due to soft gluon resummation in the QCD corrections at next-to-next-to-leading order. We demonstrate that this approximation is sufficient to describe the av...
متن کاملPower Corrections to Event Shapes in Deep Inelastic Scattering ∗
We investigate the power-suppressed corrections to the mean values of various quantities that characterise the shapes of final states in deep inelastic lepton scattering. Our method is based on an analysis of one-loop Feynman graphs containing a massive gluon, which is equivalent to the evaluation of leading infrared renormalon contributions. As in e + e − annihilation, we find that the leading...
متن کاملInvestigation of Power Corrections to Event Shape Variables measured in Deep - Inelastic Scattering
Deep-inelastic ep scattering data, taken with the H1 detector at HERA, are used to study the event shape variables thrust, jet broadening, jet mass, C parameter and two kinds of differential two-jet rate. The data cover a large range of the four-momentum transfer Q, which is considered to be the relevant energy scale, between 7GeV and 100GeV. The Q dependences of the mean values are compared wi...
متن کاملInvestigation of Power Corrections to Event Shape Variables measured in Deep-Inelastic Scattering H1 Collaboration
Deep-inelastic scattering data, taken with the H1 detector at HERA, are used to study the event shape variables thrust, jet broadening, jet mass, parameter and two kinds of differential two-jet rate. The data cover a large range of the four-momentum transfer , which is considered to be the relevant energy scale, between and . The dependences of the mean values are compared with second order cal...
متن کاملInvestigation of power corrections to event shape variables measured in deep-inelastic scattering
In a recent publication [1] the H1 collaboration has presented measurements of event shape variables in deep-inelastic scattering over a large range in four-momentum transfer . The energy or dependence of the mean values of thrust and , jet broadening , parameter and jet mass was studied in the context of additive power law corrections [2] to the perturbative QCD calculations with the result th...
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: 2019
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-019-7528-3