Ghost-Free APT Analysis of Perturbative QCD Observables

2003 ◽  
pp. 138-152
Author(s):  
Dmitry V. Shirkov
Keyword(s):  
Perturbative Qcd

scholarly journals Bd,s0→f1f1 decays with f1(1285)−f1(1420) mixing in the perturbative QCD approach

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
Zewen Jiang ◽  
De-Hua Yao ◽  
Zhi-Tian Zou ◽  
Xin Liu ◽  
Ying Li ◽  
...  
Keyword(s):  
Perturbative Qcd

scholarly journals The non-perturbative QCD Debye mass from a Wilson line operator

1999 ◽  
Vol 459 (1-3) ◽  
pp. 259-264 ◽  
Author(s):  
M. Laine ◽  
O. Philipsen
Keyword(s):  
Perturbative Qcd ◽  
Wilson Line ◽  
Debye Mass ◽  
Line Operator

scholarly journals Small-x physics in perturbative QCD

1997 ◽  
Vol 286 (3) ◽  
pp. 131-198 ◽  
Author(s):  
L.N. Lipatov
Keyword(s):  
Perturbative Qcd ◽  
Small X

scholarly journals Comparing energy loss and -broadening in perturbative QCD with strong coupling SYM theory

2008 ◽  
Vol 811 (1-2) ◽  
pp. 197-222 ◽  
Author(s):  
Fabio Dominguez ◽  
C. Marquet ◽  
A.H. Mueller ◽  
Bin Wu ◽  
Bo-Wen Xiao
Keyword(s):  
Energy Loss ◽  
Perturbative Qcd ◽  
Strong Coupling

scholarly journals |Vub| Determination by B → Dsπ

2003 ◽  
Vol 18 (22) ◽  
pp. 1557-1567 ◽  
Author(s):  
Hideaki Hayakawa ◽  
Kaoru Hosokawa ◽  
Takeshi Kurimoto
Keyword(s):  
Perturbative Qcd ◽  
B Meson ◽  
B Meson Decays ◽  
Meson Decays ◽  
Factorizable Contribution

We investigate [Formula: see text] decay in perturbative QCD approach which has recently been applied to B-meson decays. [Formula: see text] decay (and its charge conjugated mode) can be one of the hopeful modes to determine |Vub| since it occurs through b → u transition only. We estimate both factorizable and non-factorizable contribution, and show that the non-factorizable contribution is much less than the factorizable one. Our calculation gives [Formula: see text].

Perturbative QCD utilizing extended supersymmetry

1985 ◽  
Vol 157 (1) ◽  
pp. 81-84 ◽  
Author(s):  
Stephen J. Parke ◽  
T.R. Taylor
Keyword(s):  
Extended Supersymmetry ◽  
Perturbative Qcd

scholarly journals ON ANGULAR ORDERING IN MEDIUM-INDUCED RADIATION

2011 ◽  
Vol 20 (07) ◽  
pp. 1600-1604
Author(s):  
KONRAD TYWONIUK
Keyword(s):  
Perturbative Qcd ◽  
First Principles ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Differential Spectrum ◽  
Opening Angle ◽  
Gluon Emission ◽  
Collinear Singularity ◽  
Ion Collisions ◽  
Jet Observables

As an attempt to understand color coherence effects in medium from first principles, we calculate the double differential spectrum of medium-induced gluon emission off a quark–antiquark antenna in the framework of perturbative QCD. Within this setup we find a soft singularity, analogous to the vacuum spectrum, yet, as opposed to the vacuum, the collinear singularity is regulated by the pair opening angle, leading to a strict anti-angular ordering. We comment on the possible consequences of this new contribution for reconstructed jet observables in heavy-ion collisions.

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