Recent experimental results on heavy quark decays

2008 ◽  
pp. 16-29
Author(s):  
K. R. Schubert
Keyword(s):  
Heavy Quark ◽  
Experimental Results ◽  
Quark Decays

QCD corrections to heavy quark decays

2007 ◽  
Vol 85 (6) ◽  
pp. 613-617
Author(s):  
I Blokland
Keyword(s):  
Heavy Quark ◽  
Symbolic Computation ◽  
Decay Rates ◽  
Special Cases ◽  
Quark Decays ◽  
Quark Decay

The calculation of QCD corrections to heavy quark decay rates has progressed steadily in recent years. With the help of specialized techniques, symbolic computation, and a growing base of experience, a wide variety of special cases have been evaluated. These results have been applied to decays such as t → bW, b → s γ, b → u[Formula: see text]ν, and b → c[Formula: see text]ν. PACS Nos.: 12.38.Bx, 13.30.Ce

Power corrections to leading logs and their application to heavy quark decays

1990 ◽  
Vol 247 (2-3) ◽  
pp. 406-411 ◽  
Author(s):  
Adam F. Falk ◽  
Benjamin Grinstein
Keyword(s):  
Heavy Quark ◽  
Power Corrections ◽  
Quark Decays

scholarly journals CHARMED MESON PRODUCTION IN PROTON–(ANTI)PROTON COLLISIONS

2007 ◽  
Vol 22 (02n03) ◽  
pp. 555-560
Author(s):  
MARTA ŁUSZCZAK ◽  
ANTONI SZCZUREK
Keyword(s):  
Heavy Quark ◽  
Meson Production ◽  
Experimental Results ◽  
Charmed Meson ◽  
Matrix Elements ◽  
Unintegrated Gluon ◽  
Proton Collisions ◽  
Shell Matrix ◽  
Gluon Distributions

We discuss and compare different approaches to include gluon transverse momenta for heavy quark-antiquark pair and meson production. The results are illustrated with the help of different unintegrated gluon distributions (UGDF) from the literature. We compare results obtained with on-shell and off-shell matrix elements and kinematics. The results are compared with recent experimental results of the CDF collaboration.

scholarly journals Lifetimes and heavy quark expansion

2015 ◽  
Vol 30 (10) ◽  
pp. 1543005 ◽  
Author(s):  
Alexander Lenz
Keyword(s):  
Heavy Quark ◽  
Experimental Tests ◽  
Heavy Quarks ◽  
Experimental Results ◽  
Current Status ◽  
Matrix Elements ◽  
Weak Decays ◽  
The Subject

Kolya Uraltsev was one of the inventors of the Heavy Quark Expansion (HQE), that describes inclusive weak decays of hadrons containing heavy quarks and in particular lifetimes. Besides giving a pedagogic introduction to the subject, we review the development and the current status of the HQE, which just recently passed several non-trivial experimental tests with an unprecedented precision. In view of many new experimental results for lifetimes of heavy hadrons, we also update several theory predictions: [Formula: see text], τ(Bs)/τ(Bd) = 1.001 ±0.002, τ(Λb)/τ(Bd) = 0.935 ±0.054 and [Formula: see text]. The theoretical precision is currently strongly limited by the unknown size of the non-perturbative matrix elements of four-quark operators, which could be determined with lattice simulations.

Resummed Massive Spectra in Heavy Quark Decays

2010 ◽  
Vol 209 (1) ◽  
pp. 123-128
Author(s):  
L. Di Giustino ◽  
G. Ricciardi ◽  
L. Trentadue
Keyword(s):  
Heavy Quark ◽  
Quark Decays

scholarly journals Minimal prescription corrected spectra in heavy quark decays

2011 ◽  
Vol 84 (3) ◽  
Author(s):  
L. Di Giustino ◽  
G. Ricciardi ◽  
L. Trentadue
Keyword(s):  
Heavy Quark ◽  
Quark Decays
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