Scattering of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>D</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>D</mml:mi><mml:mo>*</mml:mo></mml:msup></mml:math>mesons off the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>X</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>3872</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>

Canham, David L.; Hammer, H.-W.; Springer, Roxanne P.

doi:10.1103/physrevd.80.014009

Cited by 53 publications

(70 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the X(3872) is very close to the D * 0D0 threshold, the rescattering effects of the D and D * mesons were studied in Refs. [618,619,620,621,622], and the influence of thresholds was studied in Ref. [623].…”

Section: Lattice Qcdmentioning

confidence: 99%

The hidden-charm pentaquark and tetraquark states

et al. 2016

View full text Add to dashboard Cite

In the past decade many charmonium-like states were observed experimentally. Especially those charged charmoniumlike Z c states and bottomonium-like Z b states can not be accommodated within the naive quark model. These charged Z c states are good candidates of either the hidden-charm tetraquark states or molecules composed of a pair of charmed mesons. Recently, the LHCb Collaboration discovered two hidden-charm pentaquark states, which are also beyond the quark model. In this work, we review the current experimental progress and investigate various theoretical interpretations of these candidates of the multiquark states. We list the puzzles and theoretical challenges of these models when confronted with the experimental data. We also discuss possible future measurements which may distinguish the theoretical schemes on the underlying structures of the hidden-charm multiquark states.

show abstract

Section: Lattice Qcdmentioning

confidence: 99%

The hidden-charm pentaquark and tetraquark states

et al. 2016

View full text Add to dashboard Cite

show abstract

“…In particular, an EFT description [327] of X(3872) scattering off D 0 or D * 0 mesons has been developed, and proposed for testing with either B c or BB decays with final-state interactions.…”

Section: Molecules and Effective Field Theoriesmentioning

confidence: 99%

Heavy quarkonium: progress, puzzles, and opportunities

Brambilla¹,

Eidelman²,

Heltsley³

et al. 2011

Advances in the Physics of Particles and Nuclei

103

View full text Add to dashboard Cite

A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experimental activity. The early years of this period were chronicled in the Quarkonium Working Group (QWG) CERN Yellow Report (YR) in 2004, which presented a comprehensive review of the status of the field at that time and provided specific recommendations for further progress. However, the broad spectrum of subsequent breakthroughs, surprises, and continuing puzzles could only be partially anticipated. Since the release of the YR, the BESII program concluded only to give birth to BESIII; the B-factories and CLEO-c flourished; quarkonium production and polarization measurements at HERA and the Tevatron matured; and heavy-ion collisions at RHIC have opened a window on the deconfinement regime. All these experiments leave legacies of quality, precision, and unsolved mysteries for quarkonium physics, and therefore beg for continuing investigations at BESIII, the LHC, RHIC, FAIR, the Super Flavor and/or Tau-Charm factories, JLab, the ILC, and beyond. The list of newly-found conventional states expanded to include hc(1P ), χc2(2P ), B + c , and η b (1S). In addition, the unexpected and still-fascinating X(3872) has been joined by * Editors † Section coordinators ‡ Corresponding author: bkh2@cornell.edu more than a dozen other charmonium-and bottomonium-like "XY Z" states that appear to lie outside the quark model. Many of these still need experimental confirmation. The plethora of new states unleashed a flood of theoretical investigations into new forms of matter such as quark-gluon hybrids, mesonic molecules, and tetraquarks. Measurements of the spectroscopy, decays, production, and in-medium behavior of cc, bb, and bc bound states have been shown to validate some theoretical approaches to QCD and highlight lack of quantitative success for others. Lattice QCD has grown from a tool with computational possibilities to an industrialstrength effort now dependent more on insight and innovation than pure computational power. New effective field theories for the description of quarkonium in different regimes have been developed and brought to a high degree of sophistication, thus enabling precise and solid theoretical predictions. Many expected decays and transitions have either been measured with precision or for the first time, but the confusing patterns of decays, both above and below open-flavor thresholds, endure and have deepened. The intriguing details of quarkonium suppression in heavy-ion collisions that have emerged from RHIC have elevated the importance of separating hotand cold-nuclear-matter effects in quark-gluon plasma studies. This review systematically addresses all these matters and concludes by prioritizing directions for ongoing and future efforts.

show abstract

“…The applications of XEFT are not limited to the DDπ sector, which also includes D * D and DD * states. Canham, Hammer, and Springer pointed out that XEFT can be applied to the DDDπ and DDDππ sectors [12]. They calculated the S-wave phase shifts for low-energy scattering of D or D * from X at LO.…”

Section: Introductionmentioning

confidence: 99%

Galilean-invariant effective field theory for theX(3872)

Braaten

2015

Phys. Rev. D

View full text Add to dashboard Cite

XEFT is a low-energy effective field theory for charm mesons and pions that provides a systematically improvable description of the X(3872) resonance. A Galilean-invariant formulation of XEFT is introduced to exploit the fact that mass is very nearly conserved in the transition D * 0 → D 0 π 0 . The transitions D * 0 → D 0 π 0 and X → D 0D0 π 0 are described explicitly in XEFT. The effects of the decay D * 0 → D 0 γ and of short-distance decay modes of the X(3872), such as J/ψ π + π − , can be taken into account by using complex on-shell renormalization schemes for the D * 0 propagator and for the D * 0D0 propagator in which the positions of their complex poles are specified. Galileaninvariant XEFT is used to calculate the D * 0D0 scattering length to next-to-leading order. Galilean invariance ensures the cancellation of ultraviolet divergences without the need for truncating an expansion in powers of the ratio of the pion and charm meson masses.

show abstract

Scattering ofDandD*mesons off theX(3872)

Cited by 53 publications

References 66 publications

The hidden-charm pentaquark and tetraquark states

The hidden-charm pentaquark and tetraquark states

Heavy quarkonium: progress, puzzles, and opportunities

Galilean-invariant effective field theory for theX(3872)

Contact Info

Product

Resources

About