Moments of parton evolution probabilities on the lattice within the Schrodinger functional scheme

被引：22
作者：
Bucarelli, A
Palombi, F
Petronzio, R
Shindler, A
机构：
[1] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy
[2] Ist Nazl Fis Nucl, Sez Roma 2, I-00133 Rome, Italy
[3] CERN, Div Theory, CH-1211 Geneva 23, Switzerland
来源：
NUCLEAR PHYSICS B | 1999年 / 552卷 / 1-2期
关键词：
lattice; structure functions; renormalization; Schrodinger functional;
D O I：
10.1016/S0550-3213(99)00176-5
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We define, within the Schrodinger functional scheme (SF), the matrix elements of the twist-2 operators corresponding to the first two moments of non-singlet parton densities. We perform a lattice one-loop calculation that fixes the relation between the SF scheme and other common schemes and shows the main source of lattice artefacts. This calculation sets the basis for a numerical evaluation of the non-perturbative running of parton densities. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
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页码：379 / 391
页数：13
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