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${{\mathit \chi}_{{c2}}{(3930)}}$ WIDTH

INSPIRE   PDGID:

M050W

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 35.2 \pm2.2}$ OUR AVERAGE  Error includes scale factor of 1.2. $34.2$ $\pm6.6$ $\pm1.1$ 1.2k 1 AAIJ 2020 AI LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit D}^{+}}{{\mathit D}^{-}}{{\mathit K}^{+}}$ $36.6$ $\pm1.9$ $\pm0.9$ 2 AAIJ 2019 M LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}}{{\overline{\mathit D}}}{+}$ anything $21.3$ $\pm6.8$ $\pm3.6$ $76$ $\pm17$ AUBERT 2010 G BABR 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit D}}{{\overline{\mathit D}}}$ $29$ $\pm10$ $\pm2$ 64 UEHARA 2006 BELL 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit D}}{{\overline{\mathit D}}}$ 1  Obtained from the full amplitude analysis. Parameterized with the relativistic Breit-Wigner line shape. Previous measurements assumed a single state in this region. This analysis revealed the presence of ${{\mathit \chi}_{{c0}}{(3930)}}$ with the same mass. 2  Measured in prompt hadroproduction.

References:

AAIJ 2020AI PR D102 112003 Amplitude analysis of the $B^+\to D^+D^-K^+$ decay AAIJ 2019M JHEP 1907 035 Near-threshold $D\bar{D}$ spectroscopy and observation of a new charmonium state AUBERT 2010G PR D81 092003 Observation of the ${{\mathit \chi}_{{{c2}}}}$(2P) Meson in the Reaction ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit D}}{{\overline{\mathit D}}}$ at BABAR UEHARA 2006 PRL 96 082003 Observation of a ${{\mathit \chi}_{{c2}}^{\,'}}$ Candidate in ${{\mathit \gamma}}{{\mathit \gamma}}{{\mathit D}}{{\overline{\mathit D}}}$ Production at Belle