An analysis of the contribution of isospin two ππ resonant states in the n̄p → π+π+π- annihilation reaction

A. Filippi; M. Agnello; M. Astrua; E. Botta; T. Bressani; D. Calvo; S. Costa; F. D'Isep; A. Feliciello; F. Iazzi; S. Marcello; B. Minetti; N. Mirfakhraee; F. Balestra; L. Busso; O. Denisov; L. Ferrero; R. Garfagnini; A. Grasso; A. Maggiora; A. Panzarasa; D. Panzieri; F. Tosello; A. Bertin; M. Bruschi; F. Cannata; M. Capponi; S. De Castro; R. Donà; D. Galli; B. Giacobbe; U. Marconi; I. Massa; M. Piccinini; M. Poli; N. Semprini Cesari; R. Spighi; V. Vagnoni; S. Vecchi; M. Villa; A. Vitale; A. Zoccoli; A. Bianconi; G. Bonomi; M. P. Bussa; E. Lodi Rizzini; L. Venturelli; A. Zenoni; C. Cicalò; A. De Falco; A. Masoni; G. Puddu; S. Serci; G. Usai; O. E. Gorchakov; S. N. Prakhov; A. M. Rozhdestvensky; V. I. Tretyak; P. Gianotti; C. Guaraldo; A. Lanaro; V. Lucherini; C. Petrascu; V. Filippini; A. Fontana; P. Montagna; A. Rotondi; P. Salvini; S. Tessaro

doi:10.1016/S0370-2693(00)01276-4

An analysis of the contribution of isospin two ππ resonant states in the n̄p → π⁺π⁺π^- annihilation reaction

A. Filippi, M. Agnello, M. Astrua, E. Botta, T. Bressani, D. Calvo, S. Costa, F. D'Isep, A. Feliciello, F. Iazzi, S. Marcello, B. Minetti, N. Mirfakhraee, F. Balestra, L. Busso, O. Denisov, L. Ferrero, R. Garfagnini, A. Grasso, A. MaggioraA. Panzarasa, D. Panzieri, F. Tosello, A. Bertin, M. Bruschi, F. Cannata, M. Capponi, S. De Castro, R. Donà, D. Galli, B. Giacobbe, U. Marconi, I. Massa, M. Piccinini, M. Poli, N. Semprini Cesari, R. Spighi, V. Vagnoni, S. Vecchi, M. Villa, A. Vitale, A. Zoccoli, A. Bianconi, G. Bonomi, M. P. Bussa, E. Lodi Rizzini, L. Venturelli, A. Zenoni, C. Cicalò, A. De Falco, A. Masoni, G. Puddu, S. Serci, G. Usai, O. E. Gorchakov, S. N. Prakhov, A. M. Rozhdestvensky, V. I. Tretyak, P. Gianotti, C. Guaraldo, A. Lanaro, V. Lucherini, C. Petrascu, V. Filippini, A. Fontana, P. Montagna, A. Rotondi, P. Salvini, S. Tessaro

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

The results of a search for a possible evidence of a π⁺π⁺ resonant state in the n̄p → π⁺π⁺π^- annihilation reaction with data collected by the OBELIX Experiment are presented. The study has been performed by means of a partial wave analysis in the frame of the isobar model. Production fractions for a possible π⁺π⁺ resonance have been evaluated. The observed effects at the π⁺π⁺ threshold may be described reasonably well by the contributions of f₂(1270), f₀(1500), f₂(1565) and ρ (1450) states and their interferences, but a meaningful statistical indication for a π⁺π⁺ scalar state at about 1400 MeV emerges from the analysis. (C) 2000 Published by Elsevier Science B.V.

Lingua originale	Inglese
pagine (da-a)	284-288
Numero di pagine	5
Rivista	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	495
Numero di pubblicazione	3-4
DOI	https://doi.org/10.1016/S0370-2693(00)01276-4
Stato di pubblicazione	Pubblicato - 14 dic 2000
Pubblicato esternamente	Sì

Accesso al documento

10.1016/S0370-2693(00)01276-4

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Cita questo

Filippi, A., Agnello, M., Astrua, M., Botta, E., Bressani, T., Calvo, D., Costa, S., D'Isep, F., Feliciello, A., Iazzi, F., Marcello, S., Minetti, B., Mirfakhraee, N., Balestra, F., Busso, L., Denisov, O., Ferrero, L., Garfagnini, R., Grasso, A., ... Tessaro, S. (2000). An analysis of the contribution of isospin two ππ resonant states in the n̄p → π⁺π⁺π^- annihilation reaction. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 495(3-4), 284-288. https://doi.org/10.1016/S0370-2693(00)01276-4

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title = "An analysis of the contribution of isospin two ππ resonant states in the {\=n}p → π+π+π- annihilation reaction",

abstract = "The results of a search for a possible evidence of a π+π+ resonant state in the {\=n}p → π+π+π- annihilation reaction with data collected by the OBELIX Experiment are presented. The study has been performed by means of a partial wave analysis in the frame of the isobar model. Production fractions for a possible π+π+ resonance have been evaluated. The observed effects at the π+π+ threshold may be described reasonably well by the contributions of f2(1270), f0(1500), f2(1565) and ρ (1450) states and their interferences, but a meaningful statistical indication for a π+π+ scalar state at about 1400 MeV emerges from the analysis. (C) 2000 Published by Elsevier Science B.V.",

keywords = "Antineutron-proton annihilation in flight in three charged pions, Isobar model, Isospin 2 resonant states, q{\=q} exotic states",

author = "A. Filippi and M. Agnello and M. Astrua and E. Botta and T. Bressani and D. Calvo and S. Costa and F. D'Isep and A. Feliciello and F. Iazzi and S. Marcello and B. Minetti and N. Mirfakhraee and F. Balestra and L. Busso and O. Denisov and L. Ferrero and R. Garfagnini and A. Grasso and A. Maggiora and A. Panzarasa and D. Panzieri and F. Tosello and A. Bertin and M. Bruschi and F. Cannata and M. Capponi and {De Castro}, S. and R. Don{\`a} and D. Galli and B. Giacobbe and U. Marconi and I. Massa and M. Piccinini and M. Poli and {Semprini Cesari}, N. and R. Spighi and V. Vagnoni and S. Vecchi and M. Villa and A. Vitale and A. Zoccoli and A. Bianconi and G. Bonomi and Bussa, {M. P.} and {Lodi Rizzini}, E. and L. Venturelli and A. Zenoni and C. Cical{\`o} and {De Falco}, A. and A. Masoni and G. Puddu and S. Serci and G. Usai and Gorchakov, {O. E.} and Prakhov, {S. N.} and Rozhdestvensky, {A. M.} and Tretyak, {V. I.} and P. Gianotti and C. Guaraldo and A. Lanaro and V. Lucherini and C. Petrascu and V. Filippini and A. Fontana and P. Montagna and A. Rotondi and P. Salvini and S. Tessaro",

year = "2000",

month = dec,

day = "14",

doi = "10.1016/S0370-2693(00)01276-4",

language = "English",

volume = "495",

pages = "284--288",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "3-4",

}

Filippi, A, Agnello, M, Astrua, M, Botta, E, Bressani, T, Calvo, D, Costa, S, D'Isep, F, Feliciello, A, Iazzi, F, Marcello, S, Minetti, B, Mirfakhraee, N, Balestra, F, Busso, L, Denisov, O, Ferrero, L, Garfagnini, R, Grasso, A, Maggiora, A, Panzarasa, A, Panzieri, D, Tosello, F, Bertin, A, Bruschi, M, Cannata, F, Capponi, M, De Castro, S, Donà, R, Galli, D, Giacobbe, B, Marconi, U, Massa, I, Piccinini, M, Poli, M, Semprini Cesari, N, Spighi, R, Vagnoni, V, Vecchi, S, Villa, M, Vitale, A, Zoccoli, A, Bianconi, A, Bonomi, G, Bussa, MP, Lodi Rizzini, E, Venturelli, L, Zenoni, A, Cicalò, C, De Falco, A, Masoni, A, Puddu, G, Serci, S, Usai, G, Gorchakov, OE, Prakhov, SN, Rozhdestvensky, AM, Tretyak, VI, Gianotti, P, Guaraldo, C, Lanaro, A, Lucherini, V, Petrascu, C, Filippini, V, Fontana, A, Montagna, P, Rotondi, A, Salvini, P & Tessaro, S 2000, 'An analysis of the contribution of isospin two ππ resonant states in the n̄p → π⁺π⁺π^- annihilation reaction', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 495, n. 3-4, pagg. 284-288. https://doi.org/10.1016/S0370-2693(00)01276-4

An analysis of the contribution of isospin two ππ resonant states in the n̄p → π⁺π⁺π^- annihilation reaction. / Filippi, A.; Agnello, M.; Astrua, M. et al.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 495, N. 3-4, 14.12.2000, pag. 284-288.

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

TY - JOUR

T1 - An analysis of the contribution of isospin two ππ resonant states in the n̄p → π+π+π- annihilation reaction

AU - Filippi, A.

AU - Agnello, M.

AU - Astrua, M.

AU - Botta, E.

AU - Bressani, T.

AU - Calvo, D.

AU - Costa, S.

AU - D'Isep, F.

AU - Feliciello, A.

AU - Iazzi, F.

AU - Marcello, S.

AU - Minetti, B.

AU - Mirfakhraee, N.

AU - Balestra, F.

AU - Busso, L.

AU - Denisov, O.

AU - Ferrero, L.

AU - Garfagnini, R.

AU - Grasso, A.

AU - Maggiora, A.

AU - Panzarasa, A.

AU - Panzieri, D.

AU - Tosello, F.

AU - Bertin, A.

AU - Bruschi, M.

AU - Cannata, F.

AU - Capponi, M.

AU - De Castro, S.

AU - Donà, R.

AU - Galli, D.

AU - Giacobbe, B.

AU - Marconi, U.

AU - Massa, I.

AU - Piccinini, M.

AU - Poli, M.

AU - Semprini Cesari, N.

AU - Spighi, R.

AU - Vagnoni, V.

AU - Vecchi, S.

AU - Villa, M.

AU - Vitale, A.

AU - Zoccoli, A.

AU - Bianconi, A.

AU - Bonomi, G.

AU - Bussa, M. P.

AU - Lodi Rizzini, E.

AU - Venturelli, L.

AU - Zenoni, A.

AU - Cicalò, C.

AU - De Falco, A.

AU - Masoni, A.

AU - Puddu, G.

AU - Serci, S.

AU - Usai, G.

AU - Gorchakov, O. E.

AU - Prakhov, S. N.

AU - Rozhdestvensky, A. M.

AU - Tretyak, V. I.

AU - Gianotti, P.

AU - Guaraldo, C.

AU - Lanaro, A.

AU - Lucherini, V.

AU - Petrascu, C.

AU - Filippini, V.

AU - Fontana, A.

AU - Montagna, P.

AU - Rotondi, A.

AU - Salvini, P.

AU - Tessaro, S.

PY - 2000/12/14

Y1 - 2000/12/14

N2 - The results of a search for a possible evidence of a π+π+ resonant state in the n̄p → π+π+π- annihilation reaction with data collected by the OBELIX Experiment are presented. The study has been performed by means of a partial wave analysis in the frame of the isobar model. Production fractions for a possible π+π+ resonance have been evaluated. The observed effects at the π+π+ threshold may be described reasonably well by the contributions of f2(1270), f0(1500), f2(1565) and ρ (1450) states and their interferences, but a meaningful statistical indication for a π+π+ scalar state at about 1400 MeV emerges from the analysis. (C) 2000 Published by Elsevier Science B.V.

AB - The results of a search for a possible evidence of a π+π+ resonant state in the n̄p → π+π+π- annihilation reaction with data collected by the OBELIX Experiment are presented. The study has been performed by means of a partial wave analysis in the frame of the isobar model. Production fractions for a possible π+π+ resonance have been evaluated. The observed effects at the π+π+ threshold may be described reasonably well by the contributions of f2(1270), f0(1500), f2(1565) and ρ (1450) states and their interferences, but a meaningful statistical indication for a π+π+ scalar state at about 1400 MeV emerges from the analysis. (C) 2000 Published by Elsevier Science B.V.

KW - Antineutron-proton annihilation in flight in three charged pions

KW - Isobar model

KW - Isospin 2 resonant states

KW - qq̄ exotic states

UR - http://www.scopus.com/inward/record.url?scp=0034649558&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(00)01276-4

DO - 10.1016/S0370-2693(00)01276-4

M3 - Article

SN - 0370-2693

VL - 495

SP - 284

EP - 288

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4