Erratum: Dalitz plots and lineshape of 
a1(1260)
 from a relativistic three-body unitary approach [Phys. Rev. D 
101
, 094018 (2020)]

AbstractTaking into account that the scalar $$a_0(980)$$ a 0 ( 980 ) can be dynamically generated from the pseudoscalar-pseudoscalar interaction within the chiral unitary approach, we have studied the single Cabibbo suppressed process $$D^+\rightarrow \pi ^+\pi ^0\eta $$ D + → π + π 0 η . We find clear peaks of $$a_0(980)^+$$ a 0 ( 980 ) + and $$a_0(980)^0$$ a 0 ( 980 ) 0 in the $$\pi ^+\eta $$ π + η and $$\pi ^0\eta $$ π 0 η invariant mass distributions, respectively. The predicted Dalitz plots of $$D^+\rightarrow \pi ^+\pi ^0\eta $$ D + → π + π 0 η also manifest the significant signals for $$a_0(980)^+$$ a 0 ( 980 ) + and $$a_0(980)^0$$ a 0 ( 980 ) 0 states. The uncertainties of the results due to the free parameters are also discussed. Our study shows that the process $$D^+\rightarrow \pi ^+\pi ^0\eta $$ D + → π + π 0 η can be used to explore the nature of the scalar $$a_0(980)$$ a 0 ( 980 ) , thus we encourage the experimental physicists to measure this reaction with more precision.

Download Full-text

MOMENTUM DISTRIBUTIONS FROM THREE-BODY DECAYING 9Be AND 9B RESONANCES

International Journal of Modern Physics E ◽

10.1142/s0218301311018770 ◽

2011 ◽

Vol 20 (04) ◽

pp. 827-830

Author(s):

R. ÁLVAREZ-RODRÍGUEZ ◽

A. S. JENSEN ◽

D. V. FEDOROV ◽

E. GARRIDO

Keyword(s):

Momentum Distributions ◽

Three Body ◽

Hyperspherical Adiabatic ◽

Dalitz Plots

The complex-rotated hyperspherical adiabatic method is used to study the decay of low-lying 9 Be and 9 B resonances into α, α and n or p. We consider six low-lying resonances of 9 Be (1/2±, 3/2± and 5/2±) and one resonance of 9 B (5/2-) to compare with. The properties of the resonances at large distances are decisive for the momentum distributions of the three decaying fragments. Systematic detailed energy correlations of Dalitz plots are presented.

Download Full-text

N*(1920)(1/2+) STATE IN THE $NK\bar{K}$ SYSTEM

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194514601197 ◽

2014 ◽

Vol 26 ◽

pp. 1460119

Author(s):

JU-JUN XIE ◽

A. MARTÍNEZ TORRES ◽

E. OSET

Keyword(s):

Faddeev Equations ◽

Spin Parity ◽

Unitary Approach ◽

Chiral Unitary Approach ◽

Three Body ◽

Hadron State ◽

Fixed Center

We study the three body [Formula: see text] system by using the fixed center approximation to the Faddeev equations, taking the interaction between N and [Formula: see text], N and K, and [Formula: see text] and K from the chiral unitary approach. Our results suggest that a [Formula: see text] hadron state, with spin-parity JP = 1/2+, and mass around 1920 MeV, can be formed.

Download Full-text