scholarly journals Light-cone sum rules in soft-collinear effective theory (SCET)

2007 ◽  
Author(s):  
Tobias Hurth ◽  
Fulvia De Fazio ◽  
Thorsten Feldmann
Keyword(s):  
Light Cone ◽  
Sum Rules ◽  
Effective Theory ◽  
Soft Collinear Effective Theory

scholarly journals Light-cone sum rules in soft-collinear effective theory

2006 ◽  
Vol 733 (1-2) ◽  
pp. 1-30 ◽  
Author(s):  
Fulvia De Fazio ◽  
Thorsten Feldmann ◽  
Tobias Hurth
Keyword(s):  
Light Cone ◽  
Sum Rules ◽  
Effective Theory ◽  
Soft Collinear Effective Theory

scholarly journals Precision calculations of B→V form factors from soft-collinear effective theory sum rules on the light-cone

2020 ◽  
Vol 101 (7) ◽  
Author(s):  
Jing Gao ◽  
Cai-Dian Lü ◽  
Yue-Long Shen ◽  
Yu-Ming Wang ◽  
Yan-Bing Wei
Keyword(s):  
Light Cone ◽  
Sum Rules ◽  
Form Factors ◽  
Effective Theory ◽  
Soft Collinear Effective Theory

scholarly journals Soft-collinear effective theory, light-cone gauge, and theT-Wilson lines

2011 ◽  
Vol 84 (1) ◽  
Author(s):  
Miguel García-Echevarría ◽  
Ahmad Idilbi ◽  
Ignazio Scimemi
Keyword(s):  
Light Cone ◽  
Effective Theory ◽  
Light Cone Gauge ◽  
Soft Collinear Effective Theory ◽  
Theory Light

scholarly journals Identifying the Λb(6146)0 and Λb(6152)0 as D-Wave Bottom Baryons

Universe ◽  
2020 ◽  
Vol 6 (6) ◽  
pp. 86
Author(s):  
Qiang Mao ◽  
Hua-Xing Chen ◽  
Hui-Min Yang
Keyword(s):  
Quantum Chromodynamics ◽  
Heavy Quark ◽  
Light Cone ◽  
Sum Rules ◽  
Mass Splitting ◽  
Effective Theory ◽  
Heavy Quark Effective Theory ◽  
Qcd Sum Rules ◽  
Decay Properties ◽  
D Wave

We study the Λ b ( 6146 ) 0 and Λ b ( 6152 ) 0 recently observed by LHCb using the method of Quantum Chromodynamics (QCD) sum rules within the framework of heavy quark effective theory. Our results suggest that they can be interpreted as D-wave bottom baryons of J P = 3 / 2 + and 5 / 2 + respectively, both of which contain two λ -mode excitations. We also investigate other possible assignments containing ρ -mode excitations. We extract all the parameters that are necessary to study their decay properties when using the method of light-cone sum rules. We predict masses of their strangeness partners to be m Ξ b ( 3 / 2 + ) = 6.26 − 0.14 + 0.11 GeV and m Ξ b ( 5 / 2 + ) = 6.26 − 0.14 + 0.11 GeV with the mass splitting Δ M = m Ξ b ( 5 / 2 + ) − m Ξ b ( 3 / 2 + ) = 4.5 − 1.5 + 1.9 MeV, and propose to search for them in future CMS, EIC, and LHCb experiments.

Effective Field Theory in Particle Physics and Cosmology

2020 ◽  
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Particle Physics ◽  
Large Scale ◽  
Effective Field ◽  
Effective Theory ◽  
Soft Collinear Effective Theory ◽  
Multiple Length Scales ◽  
Cosmological Observations ◽  
Standard Models

Effective field theory (EFT) is a general method for describing quantum systems with multiple-length scales in a tractable fashion. It allows us to perform precise calculations in established models (such as the standard models of particle physics and cosmology), as well as to concisely parametrize possible effects from physics beyond the standard models. EFTs have become key tools in the theoretical analysis of particle physics experiments and cosmological observations, despite being absent from many textbooks. This volume aims to provide a comprehensive introduction to many of the EFTs in use today, and covers topics that include large-scale structure, WIMPs, dark matter, heavy quark effective theory, flavour physics, soft-collinear effective theory, and more.

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