Can we understand the decay width of the Tcc+ state?

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.

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First calculation of the γγ -decay width of a nuclear 21+ state: The case of Ca48

Physical Review C ◽

10.1103/physrevc.104.024310 ◽

2021 ◽

Vol 104 (2) ◽

Author(s):

A. P. Severyukhin ◽

N. N. Arsenyev ◽

N. Pietralla

Keyword(s):

Decay Width

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Theoretical analysis of direct CP violation and differential decay width in $$D^\pm \rightarrow \pi ^\pm \pi ^+\pi ^-$$ D ± → π ± π + π - in phase space around the resonances $$\rho ^0(770)$$ ρ 0 ( 770 ) and $$f_0(500)$$ f 0 ( 500 )

The European Physical Journal C ◽

10.1140/epjc/s10052-015-3631-2 ◽

2015 ◽

Vol 75 (9) ◽

Author(s):

Zhen-Hua Zhang ◽

Ren Song ◽

Yu-Mo Su ◽

Gang Lü ◽

Bo Zheng

Keyword(s):

Phase Space ◽

Cp Violation ◽

Theoretical Analysis ◽

Decay Width

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The sircular polarization of γ-quanta in the radiative decay H Þ`ffγ (II)

Izvestiya vysshikh uchebnykh zavedenii. Fizika ◽

10.17223/00213411/64/9/134 ◽

2021 ◽

pp. 134-141

Author(s):

S.K. Abdullayev ◽

◽

E.Sh. Omarova ◽

Keyword(s):

Higgs Boson ◽

Standard Model ◽

Circular Polarization ◽

Invariant Mass ◽

Decay Width ◽

Radiative Decay ◽

W Boson ◽

Decay Channel ◽

Fermion Pair ◽

The Standard Model

Within the framework of the Standard Model, the radiative decay channel of the Higgs boson into fermion-antifermion pair is investigated: H Þ` ff γ. Taking into account the fermion and W -boson loop diagrams an analytical expression for the decay width is obtained, the circular polarization of the γ-quanta is studied in dependence of the angle θ and invariant mass of the fermion pair.

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