Interpretation of experimental<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>J</mml:mi></mml:mrow><mml:mrow><mml:mi>PC</mml:mi></mml:mrow></mml:msup></mml:mrow></mml:math>exotic signals

Donnachie, A.; Page, Philip R.

doi:10.1103/physrevd.58.114012

Cited by 32 publications

(29 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All are reasonably consistent, and even the null observations of VES and E852-IU all concur that there is strength near 1.4 GeV in the J P C exotic wave. However, the E852 and VES results can be explained as either non-resonant background [137], or non-resonant Deck amplitudes [135]. Another possibility is the opening of meson-meson thresholds, such as f 1 (1285)π.…”

Section: Interpretation Of the π 1 (1400)mentioning

confidence: 99%

“…Donnachie and Page showed that the π 1 (1400) could be an artifact of the production dynamics. They demonstrated that is possible to understand the π 1 (1400) peak as a consequence of the π 1 (1600) (see Section 5.3) interfering with a non-resonant Deck-type background with an appropriate relative phase [135]. Zhang [136] considered a molecular picture where the π 1 (1400) was an η(1295)π molecule.…”

Section: Interpretation Of the π 1 (1400)mentioning

confidence: 99%

See 1 more Smart Citation

Hybrid mesons

Meyer

Swanson

2015

Progress in Particle and Nuclear Physics

199

176

View full text Add to dashboard Cite

A review of the theoretical and experimental status of hybrid hadrons is presented. The states π 1 (1400), π 1 (1600), and π 1 (2015) are thoroughly reviewed, along with experimental results from GAMS, VES, Obelix, COMPASS, KEK, CLEO, Crystal Barrel, CLAS, and BNL. Theoretical lattice results on the gluelump spectrum, adiabatic potentials, heavy and light hybrids, and transition matrix elements are discussed. These are compared with bag, string, flux tube, and constituent gluon models. Strong and electromagnetic decay models are described and compared to lattice gauge theory results. We conclude that while good evidence for the existence of a light isovector exotic meson exists, its confirmation as a hybrid meson awaits discovery of its iso-partners. We also conclude that lattice gauge theory rules out a number of hybrid models and provides a reference to judge the success of others.

show abstract

Section: Interpretation Of the π 1 (1400)mentioning

confidence: 99%

Section: Interpretation Of the π 1 (1400)mentioning

confidence: 99%

Hybrid mesons

Meyer

Swanson

2015

Progress in Particle and Nuclear Physics

199

176

View full text Add to dashboard Cite

show abstract

“…There was an attempt to explain the π 1 (1400) as a coupled channel effect dynamically generated in πη and πη ′ scattering [12]. Donnachie and one of us (Page) suggested that the peak at 1400 MeV is a consequence of the interference of a 1600 MeV resonance with a nonresonant Deck-type background with appropriate phase [13]. So far, this scenario has only been argued to account for the E852 data, and has not been extended to the Crystal Barrel data.…”

Section: Introductionmentioning

confidence: 99%

Molecular states and1−+exotic mesons

Zhang

Ding

et al. 2002

Phys. Rev. D

Self Cite

View full text Add to dashboard Cite

This work investigates whether the observed 1 −+ exotic mesons are molecular states. We first use a potential model to calculate the spectra and lifetimes of the f 0 (980) and a 0 (980), taken to be loosely bound molecular states of KK, then apply the same scenario to the 1 −+ exotic states π 1 (1400) and π 1 (1600), assuming them to be πη(1295) and πη(1440) molecules respectively. We derive the effective potential in the framework of field theory at the hadronic level. Our results indicate that the present data on π 1 (1400) and π 1 (1600) rule out the specific molecular ansatz. We show that the lifetime of a loosely bound heavy-light molecule with enough angular momentum is fully determined by the lifetimes of its constituent mesons.

show abstract

“…Hence C-exotics from P-wave four (light)-quark systems are likely to be significantly further away from the appropriate thresholds, as appears also to be the case for hybrid C-exotics [16].…”

mentioning

confidence: 99%

Implications of a χ(3.86) state for theoretical models

Tuan

2000

Physics Letters B

View full text Add to dashboard Cite

Recent preliminary evidence for a DD state χ(3.86) raises extremely interesting implications for theoretical models, particularly those currently in vogue, e.g. the flux tube model and a molecular charmonium picture. We examine the experimental consequences as well as the possible unveiling of a strata of C-exotic states in heavy quarkonia systems by future facilities like BES Upgrade/Tau-Charm Factory and CLEO III/B-Factories.Typeset using REVT E X ? , be extended to this new χ(3.86) state also. For instance the popular perception that ψ(4.04) is I=0 cc state would lead to the produced χ(3.86) DD state having isospin 1 thus precluding it from being a cc charmonium state.In view of the central role of ψ (4.04) to interpretation, let us review first the current experimental facts known about this state. The PDG [3] states that ψ (4.04) is I G =? ? , However it has been pointed out by Close and Page [5] that the lowest hybrid ccg charmonia "H c " predicted by flux-tube charmonium spectroscopy are in the 4.1 -4.2 GeV region, while the QCD inspired potential models with long range linear behavior uniformly predict that the ψ (3S) cc state is also in the narrow range 4.10 to 4.12 GeV. Philip Page has shown [6] that within the conventional charmonium picture, the hadronic width and branching ratios of ψ (4.040) and the narrowness of the ψ (4.415) constrain the ψ (4.040) to be the 3S cc state and the ψ (4.415) to be very likely 4S cc state. Hence Close and Page [5] propose an attractive quantitative picture, in which the ψ (3S) cc and hybrid H c with 2 content ccg are within 30 MeV of each other and, again, in the 4.1 to 4.2 GeV region. Within their widths, there will be mass degeneracy of ψ (3S) and H c , leading to strong mixing and splitting of the eigenvalues. If such a degeneracy occurs one immediately expects that the physical eigenstates will tend to be

show abstract

Interpretation of experimentalJPCexotic signals

Cited by 32 publications

References 32 publications

Hybrid mesons

Hybrid mesons

Molecular states and1−+exotic mesons

Implications of a χ(3.86) state for theoretical models

Contact Info

Product

Resources

About