${{\mathit a}_{{0}}{(1450)}}$ T-MATRIX POLE $\sqrt {\mathit s }$

INSPIRE   PDGID:
M149PP
Note that $\Gamma \approx{}$2 Im($\sqrt {s }$).
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$\bf{ (1290 - 1500) − {\mit i} (30 - 140)}$ OUR ESTIMATE
$(1302.1 \pm1.1 \pm3.9) − {\mit i} (56.2 \pm0.7 \pm1.7)$ 1
ALBRECHT
2020
RVUE 0.9 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$ , ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$ , ${{\mathit \pi}^{0}}{{\mathit K}^{+}}{{\mathit K}^{-}}$
$(1515 \pm30) − {\mit i} (115 \pm18)$
ANISOVICH
2009
RVUE 0.0 ${{\overline{\mathit p}}}{{\mathit p}}$ , ${{\mathit \pi}}{{\mathit N}}$
$(1432 \pm13 \pm25)−{\mit i}(98 \pm5 \pm5)$ 2
BUGG
2008A
 RVUE ${{\overline{\mathit p}}}{{\mathit p}}$
$(1441 {}^{+40}_{-15}) − {\mit i} (55 \pm7)$ 3
BAKER
2003
SPEC ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
$(1303 \pm16) − {\mit i} (46 \pm8)$ 4
BARGIOTTI
2003
OBLX ${{\overline{\mathit p}}}{{\mathit p}}$
$(1296 \pm10) − {\mit i} (41 \pm11)$
AMSLER
2002
CBAR $0.9$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$
$(1565 \pm30) − {\mit i} (146 \pm20)$
ANISOVICH
1998B
 RVUE Compilation
$(1470 \pm25)−{\mit i}(132 \pm15)$ 5
AMSLER
1995D
 CBAR 0.0 ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ , ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$ , ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$
1  T-matrix pole, 2 poles, 2 channels ( ${{\mathit \pi}}{{\mathit \eta}}$ , ${{\mathit K}}{{\overline{\mathit K}}}$ ).
2  Using data from AMSLER 1994D, ABELE 1998 , and BAKER 2003 . Supersedes BUGG 1994 .
3  From the pole position of a fitted Breit-Wigner amplitude.
4  Coupled channel analysis of ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ , ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ , and ${{\mathit K}^{\pm}}{{\mathit K}_S^0}$ ${{\mathit \pi}^{\mp}}$ .
5  Coupled-channel analysis of AMSLER 1995B, AMSLER 1995C, and AMSLER 1994D.
References:
ALBRECHT 2020
EPJ C80 453 Coupled channel analysis of ${\bar{p}p}\,\rightarrow \,\pi ^0\pi ^0\eta $, ${\pi ^0\eta \eta }$ and ${K^+K^-\pi ^0}$ at 900 MeV/c and of ${\pi \pi }$-scattering data
ANISOVICH 2009
IJMP A24 2481 The Combined Analysis of ${{\mathit \pi}}$ ${{\mathit N}}$ $\rightarrow$ two mesons ${+}$ ${{\mathit N}}$ Reactions within Reggeon Exchanges and Data for ${{\mathit p}}$ ${{\overline{\mathit p}}}$ (at rest) $\rightarrow$ three mesons
BUGG 2008A
PR D78 074023 Reanalysis of Data on ${{\mathit a}_{{0}}{(1450)}}$ and ${{\mathit a}_{{0}}{(980)}}$
BAKER 2003
PL B563 140 Confirmation of ${{\mathit a}_{{0}}{(1450)}}$ and ${{\mathit \pi}_{{1}}{(1600)}}$ in ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ at Rest
BARGIOTTI 2003
EPJ C26 371 Coupled Channel Analysis of ${{\mathit \pi}^{+}}{{\mathit \pi}^{0}}$ , ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{-}}$ and ${{\mathit K}^{\pm}}{{\mathit K}_S^0}$ from ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilation at Rest in Hydrogen Targets at Three Densities
AMSLER 2002
EPJ C23 29 Proton-Antiproton Annihilation at 900 ${\mathrm {MeV}}/\mathit c$ into ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$, ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$, and ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$
ANISOVICH 1998B
SPU 41 419 The Lightest Scalar Glueball
AMSLER 1995D
PL B355 425 Coupled Channel Analysis of ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilation into ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$, ${{\mathit \pi}^{0}}{{\mathit \eta}}{{\mathit \eta}}$ and ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$