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${{\mathit D}_{{{1}}}{(2420)}}$ WIDTH

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M253W

VALUE (MeV) EVTS DOCUMENT ID TECN CHG  COMMENT $\bf{ 31.3 \pm1.9}$ OUR AVERAGE  Error includes scale factor of 2.8.  See the ideogram below. $33.6$ $\pm0.3$ $\pm2.7$ 79k 1 AAIJ 02 D   LHCB 0 ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$ $23.2$ $\pm2.3$ $\pm2.3$ 4207 ABLIKIM 02 P   BES3 + ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{+}}{{\mathit D}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $35.2$ $\pm0.4$ $\pm0.9$ 210k AAIJ 01 CC   LHCB 0 ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$ $38.8$ $\pm5.0$ ${}^{+1.9}_{-5.4}$ 2.7k 2 ABRAMOWICZ 01   ZEUS 0 ${{\mathit e}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}^{(*)+}}{{\mathit \pi}^{-}}{{\mathit X}}$ $31.4$ $\pm0.5$ $\pm1.3$ 103k DEL-AMO-SANCH.. 01 P   BABR 0 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$ $20.0$ $\pm1.7$ $\pm1.3$ 7.5k ABULENCIA 00 A   CDF 0 1900 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$ $24$ $\pm7$ $\pm8$ 151 ABE 00 A   BELL 0 ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$ $21$ $\pm5$ $\pm8$ 124 ABE 00 A   BELL + ${{\overline{\mathit B}}^{0}}$ $\rightarrow$ ${{\mathit D}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$ $23.7$ $\pm2.7$ $\pm4.0$ 3 ABE 00 D   BELL 0 ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$ $20$ ${}^{+6}_{-5}$ $\pm3$ 286 AVERY 99 C   CLE2 0 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X $26$ ${}^{+8}_{-7}$ $\pm4$ 146 BERGFELD 99 B   CLE2 + ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*0}}{{\mathit \pi}^{+}}$ X $15$ $\pm8$ $\pm4$ 51 FRABETTI 99 B   E687 0 ${{\mathit \gamma}}$ ${}^{}\mathrm {Be}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X $23$ ${}^{+8}_{-6}$ ${}^{+10}_{-3}$ 279 AVERY 99   CLEO 0 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X $13$ $\pm6$ ${}^{+10}_{-5}$ 171 ALBRECHT 98 H   ARG 0 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X $41$ $\pm19$ $\pm8$ 190 ANJOS 98 C   TPS + ${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit \pi}^{+}}{{\mathit X}^{0}}$ • • We do not use the following data for averages, fits, limits, etc. • • $53.2$ $\pm7.2$ ${}^{+3.3}_{-4.9}$ 3.1k CHEKANOV 00   ZEUS 0 ${{\mathit e}^{\pm}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit X}}$ $58$ $\pm14$ $\pm10$ 171 ANJOS 98 C   TPS 0 ${{\mathit \gamma}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ X 1  From a full four-body amplitude analysis of the ${{\mathit B}^{-}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$ decay. 2  From the combined fit of the ${{\mathit M}}({{\mathit D}^{+}}{{\mathit \pi}^{-}}$) and ${{\mathit M}}({{\mathit D}^{*+}}{{\mathit \pi}^{-}}$) distributions. and A$_{{{\mathit D}_{{{2}}}}}$ fixed to the theoretical prediction of $-1$. 3  Fit includes the contribution from ${{\mathit D}_{{{1}}}^{*}{(2430)}^{0}}$.

${{\mathit D}_{{{1}}}{(2420)}}$ WIDTH (MeV)

References