Disentangling the nature of resonances in coupled-channel models

Cao, Xu

doi:10.1088/1674-1137/39/4/041002

Cited by 6 publications

(3 citation statements)

References 50 publications

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“…This conclusion is inapplicable to the bottomonium sector, where other charged J P states could be dynamically generated[24].…”

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confidence: 97%

The spin parity of $Z_c^-$(4100), $Z_1^+$(4050) and $Z_2^+$(4250)

Cao,

Dai

2018

Preprint

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We conjecture that Z − c (4100) found by LHCb group from a Dalitz plot analysis ofdecay is the charge conjugate of Z + 1 (4050) observed in χ c1 π + distribution from Belle collaboration. Some interesting conclusions are inferred from this assumption. The Z 2 (4250) would be assigned to be a J P = 1 + or 1 − state because of its absence in η c π − invariant mass distribution, while Z + 1 (4050)/Z − c (4100) could be a 0 + or 1 − state but 2 + is unfavored because it would be coupled to η c π in D-wave. The null observation of Z 1 Z 2 , Z 1 Z 1 and Z 2 Z 2 production in e + e − annihilation and Υ(1S, 2S) decay by Belle collaboration would further allocate the spin parity combination of Z + 1 (4050)/Z − c (4100) and Z 2 (4250). Our deductions can be used to exclude a set of proposed models and could be further tested by future experiment, e.g. in γγ collisions.

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“…This conclusion is inapplicable to the bottomonium sector, where other charged J P states could be dynamically generated[24].…”

mentioning

confidence: 97%

The spin parity of $Z_c^-$(4100), $Z_1^+$(4050) and $Z_2^+$(4250)

Cao,

Dai

2018

Preprint

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“…A most recent effort in search of the bottomonium equivalent of the χ c1 (3872) state decaying into ωΥ(1S) by Belle II [126] observed no significant signal for masses between 10.45 and 10.65 GeV. Several isoscalar states of spin J = 0, 1, 2 with positive parity were also foreseen by different models soon after the discovery of Z b [118,127,128]. But the strange partners Z bs (or T Υs ) and isoscalar analogues have not been found yet.…”

Section: −12 +14mentioning

confidence: 99%

Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom

Xu¹

2023

Preprint

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Accessing a full image of the inner content of hadrons represents a central endeavour of modern particle physics, with the main scientific motivation to investigate the strong interaction binding the visible matter. On the one hand, the structure of known exotic candidates is a fundamental open issue addressed widely by scientists. On the other hand, looking for new states of exotic nature is a central component for theoretical and experimental efforts from electron-positron machine and electron accelerator with fixed target to heavy ion and electron-ion colliders. In this article we present a succinct short overview of the attempt to search for exotic narrow N * and Z states containing light quarks only or also charm, and its connotation for bottom regions (the latter two are also known as P c (Z c ) and P b (Z b ) states, respectively in the literature). We address the effort of searching for exotic narrow N * and Z states in light quark sector. We focus on recent progress in searching for signal of P c and Z c states photoproduction and its implication into the P b and Z b photoproduction and their decay properties. We also discuss future perspectives for the field in electron-ion colliders, a good place to disentangle the nature of some of these states and investigate some other enlightening topics including QCD trace anomaly and quarkonium-nucleon scattering length.

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“…Coupled-channel analysis also hopes to reduce the ambiguity of resonance combinations used to fit data [52]. As it is possible for more than one combination of resonances to fit the data well, this disambiguous nature can be removed by considering multiple observables on multiple final states.…”

Section: Coupled-channel Analysismentioning

confidence: 99%

First Measurement of the E Double-polarization Observable for the γη to Κ<sup>+</sup>Σ<sup>-</sup> with CLAS & a New Forward Tagger Hodoscope for CLAS12

Fleming

2016

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Finally, my darling Alex. I don't quite know how to sum up all that you've done. You've helped me through illness and days where I couldn't get out of bed. You understood when I spent weekends in the office and made me dinner when I got home at 10pm. You understood when I flew to America and Italy on three days notice and met me at the airport when I came home.I could not have done this without you.

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Disentangling the nature of resonances in coupled-channel models

Cited by 6 publications

References 50 publications

The spin parity of $Z_c^-$(4100), $Z_1^+$(4050) and $Z_2^+$(4250)

The spin parity of $Z_c^-$(4100), $Z_1^+$(4050) and $Z_2^+$(4250)

Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom

First Measurement of the E Double-polarization Observable for the γη to Κ<sup>+</sup>Σ<sup>-</sup> with CLAS & a New Forward Tagger Hodoscope for CLAS12

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Disentangling the nature of resonances in coupled-channel models

Cited by 6 publications

References 50 publications

The spin parity of $Z_c^-$(4100), $Z_1^+$(4050) and $Z_2^+$(4250)

The spin parity of $Z_c^-$(4100), $Z_1^+$(4050) and $Z_2^+$(4250)

Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom

First Measurement of the E Double-polarization Observable for the &gamma;&eta; to &Kappa;<sup>+</sup>&Sigma;<sup>-</sup> with CLAS & a New Forward Tagger Hodoscope for CLAS12

Contact Info

Product

Resources

About

First Measurement of the E Double-polarization Observable for the γη to Κ<sup>+</sup>Σ<sup>-</sup> with CLAS & a New Forward Tagger Hodoscope for CLAS12