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Partial wave analysis of pbar-p annihilation channels in flight with I=1, C=+1 | | A.V. Anisovich
; C.A. Baker
; C.J. Batty
; D.V. Bugg
; V.A. Nikonov
; A.V. Sarantsev
; V.V. Sarantsev
; B.S. Zou
; | | Date: |
3 Oct 2011 | | Abstract: | A combined analysis is reported of 3pizero, pizero-eta and pizero-etaprime
data in the mass range 1960 to 2410 MeV. This analysis is made consistent also
with eta-eta-pizero data, reported separately. The analysis requires s-channel
resonances with a spectrum close to that published earlier for C = +1 states
with I = 0; masses for I=1 states are lower on average by 20 MeV. Two
alternative solutions are found, differing only for J^P = 2^+ and 4^+ states by
small amounts in masses and widths. Both 3pizero and eta-pizero data prefer one
of these two solutions. For this preferred solution, observed states have J^PC,
masses and widths (M,Gamma) in MeV as follows: 4^-+: (2250+-15, 215+-25), 4^++:
(2255+-40, 330 ^{+110}_{-50}) and (2005 ^{+25}_{-45}, 180+-30), 3^++:
(2275+-35, 350 ^{+100}_{-50}) and (2031+-12, 150 pm 18), 2^-+: (2245+-60, 320
^{+100}_{-40}) and (2005+-15, 200+-40, 2^++: (2255+-20, 230+-15), (2175+-40,
310^{+90}_{-45}) and (2030+-20, 205+-30), and 1^++: (2270 ^{+55}_{-40}, 305
^{+70}_{-35}). There are indications of further 2^-+, 2^++ and 1^++
contributions just below the available mass range, and also a 0^++ state at
~2025 MeV. | | Source: | arXiv, 1110.0278 | | Services: | Forum | Review | PDF | Favorites | |
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