منابع مشابه
Amending published articles: time to rethink retractions and corrections?
Academic publishing is evolving and our current system of correcting research post-publication is failing, both ideologically and practically. It does not encourage researchers to engage in consistent post-publication changes. Worse yet, post-publication ‘updates’ are misconstrued as punishments or admissions of guilt. We propose a different model that publishers of research can apply to the co...
متن کاملTwo-loop Corrections-to- the Cosmological Constant*
The two-loop contributions to the induced cosmological constant are computed in a matterless Einstein theory of gravity expanded about a Minkowski background with no cosmological term present in the classical action. The regularization-independent cancellation of the contribution to one-loop order is found not to occur to two-loop order. Submitted to Physics Letters B * Work supported by the De...
متن کاملTwo-loop corrections to Bhabha scattering.
The two-loop radiative photonic corrections to Bhabha scattering are computed in the leading order of the small electron mass expansion up to the nonlogarithmic term. After including the soft photon bremsstrahlung, we obtain the infrared-finite result for the differential cross section, which can directly be applied to a precise luminosity determination of the present and future e+ e- colliders.
متن کاملTwo-loop QED Corrections to Bhabha Scattering
Bhabha scattering, ee → ee, is a crucial process in the phenomenology of particle physics. Its relevance is mainly due to the fact that it is the process employed to determine the luminosity L at ee colliders: in fact, L = NBhabha/σth, where NBhabha is the rate of Bhabha events and σth is the Bhabha scattering cross section calculated from theory. Two kinematic regions are of special interest f...
متن کاملTwo - Loop Corrections to the Electromagnetic
Two-loop contributions to the electromagnetic form factors are calculated in the kinematic regime close to the fermion-antifermion threshold. The results are presented in an expansion in the velocity of the fermions in the c.m. frame up to next-to-next-to leading order in. The existence of a new Coulomb singularity logarithmic in , which is closely related to the O(2 ln) corrections known from ...
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ژورنال
عنوان ژورنال: Journal of Wildlife Diseases
سال: 1992
ISSN: 0090-3558
DOI: 10.7589/0090-3558-28.4.683