scholarly journals Study ofD**production and light hadronic states in theB¯0→D*+ωπ−decay

2015 ◽  
Vol 92 (1) ◽  
Author(s):  
D. Matvienko ◽  
A. Kuzmin ◽  
S. Eidelman ◽  
A. Abdesselam ◽  
I. Adachi ◽  
...  
Keyword(s):  
Hadronic States

scholarly journals Improved Parton Distributions from the Quark Model

1991 ◽  
Vol 44 (4) ◽  
pp. 363 ◽  
Author(s):  
SD Bass ◽  
A Schreiber ◽  
AW Thomas ◽  
JT Londergan
Keyword(s):  
Quark Model ◽  
Constant Density ◽  
Matrix Elements ◽  
Significant Progress ◽  
Parton Distributions ◽  
Quark Field ◽  
Hadronic States

There has recently been significant progress in the calculation of the twist-two piece of the quark/parton distributions corresponding to models like the MIT bag. However, in evaluating the required matrix elements of the quark field operators Signal and Thomas (1988, 1989) resorted to the Peierls-Yoccoz (1957) approximation-albeit with some cautionary remarks. We point out a problem with that approach which is solved by using the Peierls-Thouless (1962) approximation for the hadronic states. The very simple case of a nonrelativistic constant density quark wavefunction is solved in detail.

scholarly journals On some properties of di-hadronic states

2009 ◽  
Vol 79 (2) ◽  
pp. 025103 ◽  
Author(s):  
B Chakrabarti ◽  
A Bhattacharya ◽  
S Mani
Keyword(s):  
Hadronic States

scholarly journals SOME FIELD-THEORETICAL ASPECTS OF TWO TYPES OF THE POINCARÉ GROUP REPRESENTATIONS

2014 ◽  
Vol 29 (02) ◽  
pp. 1450020
Author(s):  
L. M. SLAD
Keyword(s):  
Particle Physics ◽  
Irreducible Representations ◽  
Poincaré Group ◽  
Group Representations ◽  
Standard Type ◽  
Poincare Group ◽  
Relativistic Description ◽  
Class Fields ◽  
Infinite Component ◽  
Hadronic States

The capabilities of some approaches to the relativistic description of hadronic states with any rest spin are analysed. The key feature in the Wigner's construction of irreducible representations of the Poincaré group, which makes this construction fruitless in particle physics, is picked out. A realization of unitary irreducible representations of the Poincaré group of the standard type, which has not yet been considered, is discussed. The viability of the description of hadrons by the Poincaré group representations of the standard type in the space of the infinite-component ISFIR-class fields is pointed out.

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