Double Scaling Violations

نویسندگان

  • Stefano Forte
  • Richard D. Ball
چکیده

We discuss the theoretical implications of the scaling properties of F p 2 at small x observed in recent HERA experiments. We show that low Q data display double scaling violations which are adequately described by NL lnQ corrections. Scaling violations due to summations of leading and subleading ln 1 x beyond NLO in lnQ are however disfavoured by the data. Presented at the Workshop DIS 96, Rome, April 1996 To be published in the proceedings

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ar X iv : h ep - p h / 96 07 29 1 v 1 1 1 Ju l 1 99 6 Edinburgh 96 / 14 DFTT 35 / 96 hep - ph / 9607291 DOUBLE SCALING VIOLATIONS

We discuss the theoretical implications of the scaling properties of F p 2 at small x observed in recent HERA experiments. We show that low Q data display double scaling violations which are adequately described by NL lnQ corrections. Scaling violations due to summations of leading and subleading ln 1 x beyond NLO in lnQ are however disfavoured by the data. Presented at the Workshop DIS 96, Rom...

متن کامل

Factorial correlators: angular scaling within QCD jets

Factorial correlators measure the amount of dynamical correlation in multiplicity between two separated phase-space windows. We present the analytical derivation of factorial correlators for a QCD jet described at the double logarithmic (DL) accuracy. We obtain a new angular scaling property for properly normalized correlators between two solid-angle cells or two rings around the jet axis. Norm...

متن کامل

Determination of αS from scaling violations of truncated moments of structure functions

We determine the strong coupling αS(MZ) from scaling violations of truncated moments of the nonsinglet deep inelastic structure function F2. Truncated moments are determined from BCDMS and NMC data using a neural network parametrization which retains the full experimental information on errors and correlations. Our method minimizes all sources of theoretical uncertainty and bias which character...

متن کامل

Sum over topologies and double-scaling limit in 2D Lorentzian quantum gravity

We construct a combined non-perturbative path integral over geometries and topologies for two-dimensional Lorentzian quantum gravity. The Lorentzian structure is used in an essential way to exclude geometries with unacceptably large causality violations. The remaining sum can be performed analytically and possesses a unique and welldefined double-scaling limit, a property which has eluded simil...

متن کامل

On the Ordering of Orbital Energies in the ROHF Method: Koopmans’ Theorem versus Aufbau Principle

The restricted open-shell Hartree-Fock (ROHF) method in its different formulations is a standard tool used by quantum chemists for studying open-shell systems. This work presents a discussion of specific difficulties which arise in the ROHF method in those cases where the orbital energies violate the Aufbau principle (AP). The AP violations are often treated in the literature as a deficiency of...

متن کامل

ذخیره 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 1996