Pith. sign in

REVIEW 4 cited by

Observation of the chi_c2(2P) meson in the reaction gamma gamma -> D Dbar at BABAR

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1002.0281 v2 pith:RUJVMDGI submitted 2010-02-01 hep-ex

The BABAR Collaboration: B. Aubert , et al This is my paper · ORCID
classification hep-ex
keywords gammaddbarstatebabarevidencemassmesonwidth
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

A search for the Z(3930) resonance in gamma gamma production of the DDbar system has been performed using a data sample corresponding to an integrated luminosity of 384 fb^-1 recorded by the BABAR experiment at the PEP-II asymmetric-energy electron-positron collider. The DDbar invariant mass distribution shows clear evidence of the Z(3930) state with a significance of 5.8 sigma. We determine mass and width values of (3926.7 +- 2.7 +- 1.1) MeV/c^2 and (21.3 +- 6.8 +- 3.6) MeV, respectively. A decay angular analysis provides evidence that the Z(3930) is a tensor state with positive parity and C-parity (J^PC = 2^++); therefore we identify the Z(3930) state as the chi_c2(2P) meson. The value of the partial width Gamma_(gamma gamma)xB(Z(3930)-> DDbar) is found to be (0.24 +- 0.05 +- 0.04) keV.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Resolving the CP Asymmetry Puzzle in $B$ Decays with Unitarized Final-State Interactions

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    A unitarized FSI framework with no adjustable parameters for B decays, calibrated on BaBar γγ o D Dbar data, predicts enhanced CP asymmetries in pure-annihilation channels that match existing measurements.

  2. HadroTOPS: A Monte Carlo Event Generator For Hadron Production In Two-Photon Scattering In Electron Positron Collisions

    hep-ph 2025-11 conditional novelty 6.0 of 10

    A new Monte Carlo generator, HadroTOPS, implements the fully differential exclusive e+e- -> e+e- M1M2 cross-section with azimuthal modulations and covers pi+pi-, pi0pi0, pi0eta, K+K-, KsKs, eta eta, and f1(1285) modes.

  3. Hidden-Charm Tetraquarks in a Mixture Model: Coupled-Channel Analysis with $c\bar{c}$ and Hadronic Molecular Components

    hep-ph 2025-05 conditional novelty 5.0 of 10

    A coupled-channel mixture model fitted to the X(3872) and Z(3930) masses predicts the X(3860) at about 3867 MeV, dominated by the charmonium core.

  4. Heavy quarkonia and new hadrons with two heavy quarks

    hep-ex 2025-08 accept novelty 1.0 of 10

    A literature review that compiles the current experimental landscape of charmonium, bottomonium, and XYZ exotic states; it contains no new measurements, derivations, or predictions.

Pith tools