Power-dependent line-shape corrections for quantitative spectroscopy
نویسندگان
چکیده
منابع مشابه
Power Corrections in Deep Inelastic Event Shape Variables
Results are presented for the leading power-suppressed (1/Q) contributions to shape variables in deep inelastic lepton scattering. These are then combined with available leading order perturbative estimates. INTRODUCTION The increasing quantity of data from HERA has given a great boost to the testing of QCD via determinations of the strong coupling constant and the possibility of observing, ove...
متن کاملShape functions and power corrections to the event shapes ∗
We show that the leading power corrections to the event shape distributions can be resummed into nonperturbative shape functions that do not depend on the center-of-mass energy and measure the energy flow in the final state. In the case of the thrust variable, the distribution is given by the convolution of the perturbative spectrum with the shape function. Choosing the simplest ansatz for the ...
متن کاملPower corrections to event shapes with mass-dependent operators Citation
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. We introduce an operator depending on the ''transverse velocity'' r that describes the effect of hadron masses on t...
متن کاملMode Shape Corrections for Wind Load Effects
Traditionally, wind analysis procedures based on the ‘‘gust loading factor’’ approach and experimental techniques involving the high frequency base balance and the ‘‘stick-type’’ aeroelastic model test have assumed ideal structural mode shapes, i.e., linear lateral modes and uniform torsional modes. The influence of nonideal mode shapes manifests itself through modifications in the generalized ...
متن کاملSuppressed power corrections for moments of event-shape variables in e+e− annihilation∗
Power corrections that fall as 1/Q, where Q is the center-of-mass energy, play a significant role in the phenomenology of the average values of event-shape variables like the thrust T . These power corrections can be analyzed in perturbative QCD using renormalon resummation in the single dressed gluon approximation. They originate in a particular part of phase-space where a soft gluon is emitte...
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: Physical Review A
سال: 2012
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.86.012506