Heavy quark symmetry, chiral symmetry, and parity doublets of heavy mesons in the Bethe-Salpeter approach

1995 ◽  
Vol 51 (3) ◽  
pp. 1243-1247 ◽  
Author(s):  
C. S. Huang
Keyword(s):  
Heavy Quark ◽  
Chiral Symmetry ◽  
Heavy Mesons ◽  
Heavy Quark Symmetry

Radiative decays of heavy mesons with heavy quark symmetry

Pramana ◽  
1996 ◽  
Vol 47 (3) ◽  
pp. 225-231 ◽  
Author(s):  
A K Giri ◽  
L Maharana ◽  
R Mohanta
Keyword(s):  
Heavy Quark ◽  
Radiative Decays ◽  
Heavy Mesons ◽  
Heavy Quark Symmetry

scholarly journals Heavy Quark Symmetry and Fine Structure of the Spectrum of Hadronic Dark Matter

Symmetry ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 1906
Author(s):  
Vladimir Kuksa ◽  
Vitaly Beylin
Keyword(s):  
Dark Matter ◽  
Fine Structure ◽  
Heavy Quark ◽  
Excited States ◽  
Hyperfine Splitting ◽  
Mass Splitting ◽  
Effective Theory ◽  
Heavy Quark Effective Theory ◽  
Heavy Mesons ◽  
Heavy Quark Symmetry

We analyze the structure of excited states of new heavy hadrons in the scenario with hadronic dark matter. Fine mass-splitting in a doublet of new mesons stipulates the existence of charged metastable heavy mesons. We describe the structure of new meson excited states in the framework of the heavy quark effective theory. Phenomenological consequences of fine and hyperfine splitting are considered in the hadronic dark matter scenario and beyond.

scholarly journals HEAVY-QUARK SYMMETRY AND SKYRMIONS

1995 ◽  
Vol 04 (01) ◽  
pp. 47-119 ◽  
Author(s):  
DONG-PIL MIN ◽  
YONGSEOK OH ◽  
BYUNG-YOON PARK ◽  
MANNQUE RHO
Keyword(s):  
Heavy Quark ◽  
Chiral Symmetry ◽  
Heavy Quarks ◽  
The Other ◽  
Finite Mass ◽  
Top Down ◽  
Bottom Up ◽  
Heavy Quark Symmetry ◽  
Heavy Quark Limit ◽  
Work Done

We review recent development on combining heavy-quark symmetry and chiral symmetry in the skyrmion structure of the baryons containing one or more heavy quarks, c (charmed) and b (bottom). We describe two approaches: One going from the chiral symmetry regime of light quarks to the heavy-quark symmetry regime which will be referred to as “bottom-up” approach and the other going down from the heavy-quark limit to the realistic finite-mass regime which will be referred to as “top-down.” A possible hidden connection between the two symmetry limits is suggested. This review is based largely on the work done — some unpublished — by the authors since several years.

scholarly journals Exotic hadrons with heavy flavors: X, Y, Z, and related states

2016 ◽  
Vol 2016 (6) ◽  
Author(s):  
Atsushi Hosaka ◽  
Toru Iijima ◽  
Kenkichi Miyabayashi ◽  
Yoshihide Sakai ◽  
Shigehiro Yasui
Keyword(s):  
Heavy Quark ◽  
Chiral Symmetry ◽  
The Past ◽  
Heavy Quark Symmetry ◽  
Theoretical Predictions ◽  
Exotic Hadrons

Abstract In the past decade, exotic hadrons with charm and bottom flavors have been extensively studied both in experiments and in theories. In this review, we provide topical discussions by selecting $X,Y,Z$ particles, to which Belle has made important contributions. These are $X(3872)$, $Y(4260)$, $Z_c(4430)^+$, $Z_c(3900)^+$, $Z_{b}(10610)^+$, and $Z_{b}(10650)^+$. Based on the current experimental observations, we discuss these states with emphasis on the hadronic molecule whose dynamics is governed by chiral symmetry and heavy-quark symmetry of QCD. We also mention briefly various interpretations and some theoretical predictions for the as yet undiscovered exotic hadrons.

HEAVY FLAVOR CONSERVING RADIATIVE DECAYS OF HEAVY MESONS

1999 ◽  
Vol 14 (13) ◽  
pp. 2133-2138
Author(s):  
R. MOHANTA ◽  
A. K. GIRI
Keyword(s):  
Heavy Quark ◽  
Light Quark ◽  
Photon Emission ◽  
Radiative Decays ◽  
Heavy Flavor ◽  
Matrix Elements ◽  
Heavy Mesons ◽  
Quark Sector ◽  
Heavy Quark Symmetry ◽  
Transition Matrix Elements

The radiative decays of heavy mesons are studied in the heavy quark symmetry formalism. Assuming the traditional picture of photon emission by the confined quark or antiquark, we obtain the transition matrix elements for the heavy quark current sector. For the light quark sector we employ the ISGW quark model. The results obtained agree reasonably well with other estimations.

scholarly journals Ratios ofB andD meson decay constants with heavy quark symmetry

Pramana ◽  
1996 ◽  
Vol 47 (3) ◽  
pp. 261-261
Author(s):  
A K Giri ◽  
L Maharana ◽  
R Mohanta
Keyword(s):  
Heavy Quark ◽  
Meson Decay ◽  
Decay Constants ◽  
Heavy Quark Symmetry

scholarly journals Non-Relativistic Model for the Semileptonic Λb→Λc Decay

1997 ◽  
Vol 12 (03) ◽  
pp. 195-204 ◽  
Author(s):  
Debrupa Chakraverty ◽  
Triptesh De ◽  
Binayak Dutta-Roy ◽  
K. S. Gupta
Keyword(s):  
Heavy Quark ◽  
Decay Width ◽  
Branching Ratio ◽  
Relativistic Model ◽  
Heavy Quark Symmetry ◽  
Heavy Baryons

We calculate the decay width for [Formula: see text] in the framework of a non-relativistic quark (NRQ) model of heavy baryons where the light quarks play the role of spectators. Our calculation does not make an explicit use of the heavy quark symmetry. The branching ratio for the above process as calculated here agrees reasonably well with the experimental value.

scholarly journals Radiative decay using heavy quark and chiral symmetry

1992 ◽  
Vol 296 (3-4) ◽  
pp. 415-419 ◽  
Author(s):  
James F. Amundson ◽  
C.Glenn Boyd ◽  
Elizabeth Jenkins ◽  
Michael Luke ◽  
Aneesh V. Manohar ◽  
...  
Keyword(s):  
Heavy Quark ◽  
Chiral Symmetry ◽  
Radiative Decay
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