2020
DOI: 10.48550/arxiv.2002.09401
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Quark structure of the $χ_{\rm c}(3P)$ and $X(4274)$ resonances and their strong and radiative decays

J. Ferretti,
E. Santopinto,
M. Naeem Anwar
et al.

Abstract: We calculate the masses of χc(3P ) states with threshold corrections in a coupled-channel model. The model was recently applied to the description of the properties of χc(2P ) and χ b (3P ) multiplets [Phys. Lett. B 789, 550 (2019)]. We also compute the open-charm strong decay widths of the χc(3P ) states and their radiative transitions. According to our predictions, the χc(3P ) states should be dominated by the charmonium core plus small meson-meson components. The X( 4274) is interpreted as a cc χc1(3P ) sta… Show more

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Cited by 3 publications
(4 citation statements)
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“…Studies in which the Y (4140)-Y (4274) sector is described in terms of conventional charmonium appear in Ref. [93][94][95][96][97][98]. Moreover, as seen in these papers and in Refs.…”
Section: B the Ccss Sectormentioning
confidence: 90%
“…Studies in which the Y (4140)-Y (4274) sector is described in terms of conventional charmonium appear in Ref. [93][94][95][96][97][98]. Moreover, as seen in these papers and in Refs.…”
Section: B the Ccss Sectormentioning
confidence: 90%
“…However, with such linear potential the masses of high excitations of light mesons [21] and charmonium [11,22,23] appear to be by (100 − 200) MeV higher than in experiment. Different approaches were suggested to explain these the mass shifts down, introducing the flattened V c (r) potential in [21], or the screened confinement potential [22], or taking into account the meson-meson correction due to open channels [23].…”
Section: ) X(4685)mentioning
confidence: 67%
“…The behavior of V c (r) = σ 0 r is known from the analysis of the Regge trajectories, when at the distances r < ∼ 1.2 fm the confinement potential is linear with the string tension σ 0 = 0.181(1) GeV 2 [21]. However, with such linear potential the masses of high excitations of light mesons [21] and charmonium [11,22,23] appear to be by (100 − 200) MeV higher than in experiment. Different approaches were suggested to explain these the mass shifts down, introducing the flattened V c (r) potential in [21], or the screened confinement potential [22], or taking into account the meson-meson correction due to open channels [23].…”
Section: ) X(4685)mentioning
confidence: 95%
“…To explain these mass shifts down different approaches were suggested, e.g. introducing the flattened V c (r ) potential in [45][46][47], or the screened confinement potential [50], or taking into account the meson-meson correction due to open channels [51]. In the flattened confinement potential the string tension σ (r ) is decreasing at large r [45][46][47] and later this potential was shown to be universal and can describe high excitations of heavy quarkonia and heavy-light mesons [31][32][33][34][35].…”
Section: The Charmonium N 3 P J Statesmentioning
confidence: 99%