scholarly journals EFFECTIVE FIELD THEORY AND HEAVY QUARK PHYSICS

2006 ◽  
Author(s):  
MATTHIAS NEUBERT
Keyword(s):  
Field Theory ◽  
Heavy Quark ◽  
Heavy Quark Physics ◽  
Effective Field Theory ◽  
Effective Field

scholarly journals Effective Field Theory approach to heavy quark fragmentation

2016 ◽  
Vol 2016 (11) ◽  
Author(s):  
Michael Fickinger ◽  
Sean Fleming ◽  
Chul Kim ◽  
Emanuele Mereghetti
Keyword(s):  
Field Theory ◽  
Heavy Quark ◽  
Effective Field Theory ◽  
Effective Field ◽  
Theory Approach ◽  
Quark Fragmentation

scholarly journals Unimagined imaginary parts in heavy quark effective field theory

1993 ◽  
Vol 304 (3-4) ◽  
pp. 311-317 ◽  
Author(s):  
Wolfgang Kilian ◽  
Thomas Mannel ◽  
Thorsten Ohl
Keyword(s):  
Field Theory ◽  
Heavy Quark ◽  
Effective Field Theory ◽  
Effective Field

scholarly journals The ${{B\to \pi \ell\nu_\ell}}$ semileptonic decay within the LCSR approach under heavy quark effective field theory

2020 ◽  
Vol 44 (1) ◽  
pp. 013101
Author(s):  
Rui-Yu Zhou ◽  
Lei Guo ◽  
Hai-Bing Fu ◽  
Wei Cheng ◽  
Xing-Gang Wu
Keyword(s):  
Field Theory ◽  
Heavy Quark ◽  
Effective Field Theory ◽  
Semileptonic Decay ◽  
Effective Field

scholarly journals Heavy quark effective field theory at : QCD corrections to the currents

1997 ◽  
Vol 398 (3-4) ◽  
pp. 365-373
Author(s):  
Christopher Balzereit ◽  
Thorsten Ohl
Keyword(s):  
Field Theory ◽  
Heavy Quark ◽  
Effective Field Theory ◽  
Effective Field

scholarly journals A MORE PRECISE EXTRACTION OF |Vcb| IN HQEFT OF QCD

2004 ◽  
Vol 19 (18) ◽  
pp. 1379-1390 ◽  
Author(s):  
W. Y. WANG ◽  
Y. L. WU ◽  
Y. A. YAN ◽  
M. ZHONG ◽  
Y. B. ZUO
Keyword(s):  
Field Theory ◽  
Experimental Data ◽  
Matrix Element ◽  
Heavy Quark ◽  
Effective Field Theory ◽  
Effective Field ◽  
Decay Rates ◽  
Recent Experimental Data ◽  
B Decays ◽  
Ckm Matrix

The more precise extraction for the CKM matrix element |Vcb| in the heavy quark effective field theory (HQEFT) of QCD is studied from both exclusive and inclusive semileptonic B decays. The values of relevant nonperturbative parameters up to order [Formula: see text] are estimated consistently in HQEFT of QCD. Using the most recent experimental data for B decay rates, |Vcb| is updated to be |Vcb|=0.0395±0.0011expt±0.0019theorfrom B→D*lν decay and |Vcb|=0.0434±0.0041expt±0.0020theorfrom B→Dlν decay as well as |Vcb|=0.0394±0.0010expt±0.0014theorfrom inclusive B→Xclν decay.

scholarly journals HEAVY QUARK SYMMETRIES: MOLECULAR PARTNERS OF THE X(3872) AND $Z_{b}(10610)/Z_{b}'(10650)$

2014 ◽  
Vol 26 ◽  
pp. 1460073 ◽  
Author(s):  
FENG-KUN GUO ◽  
CARLOS HIDALGO-DUQUE ◽  
JUAN NIEVES ◽  
MANUEL PAVÓN VALDERRAMA
Keyword(s):  
Field Theory ◽  
Experimental Data ◽  
Heavy Quark ◽  
Effective Field Theory ◽  
Heavy Baryon ◽  
Heavy Meson ◽  
Effective Field ◽  
Quark Spin

In this work, we have used an Effective Field Theory (EFT) framework based on Heavy Quark Spin (HQSS), Heavy Flavour (HFS) and Heavy Antiquark-Diquark symmetries (HADS). Using a standard lagrangian for the heavy meson-heavy antimeson system, we fit the counter-terms of the model to predict some promising experimental data that can be interpreted as heavy meson-heavy antimeson molecules, that is, the X(3872) and the [Formula: see text]. Next, and, taking advantage of HADS, we use the same lagrangian to explore the consequences for heavy meson-doubly heavy baryon molecules, which can also be interpreted as triply heavy pentaquarks.

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