Study of the p̄p → 2π+2π- annihilation from S states

A. Bertin; M. Bruschi; M. Capponi; A. Collamati; S. De Castro; R. Dona; A. Ferretti; D. Galli; B. Giacobbe; U. Marconi; I. Massa; M. Piccinini; N. Semprini Cesari; R. Spighi; S. Vecchi; F. Vigotti; M. Villa; A. Vitale; A. Zoccoli; M. Corradini; A. Donzella; E. Lodi Rizzini; L. Venturelli; A. Zenoni; C. Cicalò; A. Masoni; G. Puddu; S. Serci; G. Usai; O. E. Gorchakov; S. N. Prakhov; A. M. Rozhdestvensky; M. G. Sapozhnikov; V. I. Tretyak; M. Poli; P. Gianotti; C. Guaraldo; A. Lanaro; V. Lucherini; F. Nichitiu; C. Petrascu; A. Rosca; V. G. Ableev; C. Cavion; U. Gastaldi; M. Lombardi; G. Maron; L. Vannucci; G. Vedovato; G. Bendiscioli; V. Filippini; A. Fontana; P. Montagna; A. Rotondi; A. Saino; P. Salvini; C. Scoglio; P. Temnikov; F. Balestra; M. P. Bussa; L. Busso; P. Cerello; O. Yu Denisov; L. Ferrero; R. Garfagnini; A. Grasso; A. Maggiora; D. Panzieri; F. Tosello; L. Valacca; G. Zosi; E. Botta; T. Bressani; D. Calvo; S. Costa; D. D'Isep; A. Feliciello; A. Filippi; S. Marcello; E. Rossetto; M. Agnello; F. Iazzi; B. Minetti; G. Pauli; S. Tessaro; L. Santi

doi:10.1016/S0370-2693(97)01189-1

Study of the p̄p → 2π⁺2π^- annihilation from S states

A. Bertin, M. Bruschi, M. Capponi, A. Collamati, S. De Castro, R. Dona, A. Ferretti, D. Galli, B. Giacobbe, U. Marconi, I. Massa, M. Piccinini, N. Semprini Cesari, R. Spighi, S. Vecchi, F. Vigotti, M. Villa, A. Vitale, A. Zoccoli, M. CorradiniA. Donzella, E. Lodi Rizzini, L. Venturelli, A. Zenoni, C. Cicalò, A. Masoni, G. Puddu, S. Serci, G. Usai, O. E. Gorchakov, S. N. Prakhov, A. M. Rozhdestvensky, M. G. Sapozhnikov, V. I. Tretyak, M. Poli, P. Gianotti, C. Guaraldo, A. Lanaro, V. Lucherini, F. Nichitiu, C. Petrascu, A. Rosca, V. G. Ableev, C. Cavion, U. Gastaldi, M. Lombardi, G. Maron, L. Vannucci, G. Vedovato, G. Bendiscioli, V. Filippini, A. Fontana, P. Montagna, A. Rotondi, A. Saino, P. Salvini, C. Scoglio, P. Temnikov, F. Balestra, M. P. Bussa, L. Busso, P. Cerello, O. Yu Denisov, L. Ferrero, R. Garfagnini, A. Grasso, A. Maggiora, D. Panzieri, F. Tosello, L. Valacca, G. Zosi, E. Botta, T. Bressani, D. Calvo, S. Costa, D. D'Isep, A. Feliciello, A. Filippi, S. Marcello, E. Rossetto, M. Agnello, F. Iazzi, B. Minetti, G. Pauli, S. Tessaro, L. Santi

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

Abstract

The results of the spin-parity analysis of p̄p → 2π⁺2π^- annihilations at very low momentum p̄ (≈ 50 MeV/c) are reported. To describe the data the production of the ρ,f₂,a₂ and a₁ mesons and the presence of the ππ interaction in S-wave (the σ term) in the final state are necessary. The best fit solution requires also the presence of a ρ′ state of mass and width M = 1.282 ± 0.037, Γ = 0.236 ± 0.036 GeV/c² and of a heavy pion π(1300) of mass and width M = 1.275 ± 0.015, Γ = 0.218 ± 0.100 GeV/c². The measured fraction of the annihilation cross section into 2π⁺2π^- is (7.61 ± 0.35)·10^-2.

Lingua originale	Inglese
pagine (da-a)	220-228
Numero di pagine	9
Rivista	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	414
Numero di pubblicazione	1-2
DOI	https://doi.org/10.1016/S0370-2693(97)01189-1
Stato di pubblicazione	Pubblicato - 20 nov 1997
Pubblicato esternamente	Sì

Accesso al documento

10.1016/S0370-2693(97)01189-1

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Bertin, A., Bruschi, M., Capponi, M., Collamati, A., De Castro, S., Dona, R., Ferretti, A., Galli, D., Giacobbe, B., Marconi, U., Massa, I., Piccinini, M., Semprini Cesari, N., Spighi, R., Vecchi, S., Vigotti, F., Villa, M., Vitale, A., Zoccoli, A., ... Santi, L. (1997). Study of the p̄p → 2π⁺2π^- annihilation from S states. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 414(1-2), 220-228. https://doi.org/10.1016/S0370-2693(97)01189-1

@article{e5648ca58936495ba121be26347ba0db,

title = "Study of the {\=p}p → 2π+2π- annihilation from S states",

abstract = "The results of the spin-parity analysis of {\=p}p → 2π+2π- annihilations at very low momentum {\=p} (≈ 50 MeV/c) are reported. To describe the data the production of the ρ,f2,a2 and a1 mesons and the presence of the ππ interaction in S-wave (the σ term) in the final state are necessary. The best fit solution requires also the presence of a ρ′ state of mass and width M = 1.282 ± 0.037, Γ = 0.236 ± 0.036 GeV/c2 and of a heavy pion π(1300) of mass and width M = 1.275 ± 0.015, Γ = 0.218 ± 0.100 GeV/c2. The measured fraction of the annihilation cross section into 2π+2π- is (7.61 ± 0.35)·10-2.",

author = "A. Bertin and M. Bruschi and M. Capponi and A. Collamati and {De Castro}, S. and R. Dona and A. Ferretti and D. Galli and B. Giacobbe and U. Marconi and I. Massa and M. Piccinini and {Semprini Cesari}, N. and R. Spighi and S. Vecchi and F. Vigotti and M. Villa and A. Vitale and A. Zoccoli and M. Corradini and A. Donzella and {Lodi Rizzini}, E. and L. Venturelli and A. Zenoni and C. Cical{\`o} 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 Sapozhnikov, {M. G.} and Tretyak, {V. I.} and M. Poli and P. Gianotti and C. Guaraldo and A. Lanaro and V. Lucherini and F. Nichitiu and C. Petrascu and A. Rosca and Ableev, {V. G.} and C. Cavion and U. Gastaldi and M. Lombardi and G. Maron and L. Vannucci and G. Vedovato and G. Bendiscioli and V. Filippini and A. Fontana and P. Montagna and A. Rotondi and A. Saino and P. Salvini and C. Scoglio and P. Temnikov and F. Balestra and Bussa, {M. P.} and L. Busso and P. Cerello and Denisov, {O. Yu} and L. Ferrero and R. Garfagnini and A. Grasso and A. Maggiora and D. Panzieri and F. Tosello and L. Valacca and G. Zosi and E. Botta and T. Bressani and D. Calvo and S. Costa and D. D'Isep and A. Feliciello and A. Filippi and S. Marcello and E. Rossetto and M. Agnello and F. Iazzi and B. Minetti and G. Pauli and S. Tessaro and L. Santi",

year = "1997",

month = nov,

day = "20",

doi = "10.1016/S0370-2693(97)01189-1",

language = "English",

volume = "414",

pages = "220--228",

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

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

Bertin, A, Bruschi, M, Capponi, M, Collamati, A, De Castro, S, Dona, R, Ferretti, A, Galli, D, Giacobbe, B, Marconi, U, Massa, I, Piccinini, M, Semprini Cesari, N, Spighi, R, Vecchi, S, Vigotti, F, Villa, M, Vitale, A, Zoccoli, A, Corradini, M, Donzella, A, Lodi Rizzini, E, Venturelli, L, Zenoni, A, Cicalò, C, Masoni, A, Puddu, G, Serci, S, Usai, G, Gorchakov, OE, Prakhov, SN, Rozhdestvensky, AM, Sapozhnikov, MG, Tretyak, VI, Poli, M, Gianotti, P, Guaraldo, C, Lanaro, A, Lucherini, V, Nichitiu, F, Petrascu, C, Rosca, A, Ableev, VG, Cavion, C, Gastaldi, U, Lombardi, M, Maron, G, Vannucci, L, Vedovato, G, Bendiscioli, G, Filippini, V, Fontana, A, Montagna, P, Rotondi, A, Saino, A, Salvini, P, Scoglio, C, Temnikov, P, Balestra, F, Bussa, MP, Busso, L, Cerello, P, Denisov, OY, Ferrero, L, Garfagnini, R, Grasso, A, Maggiora, A, Panzieri, D, Tosello, F, Valacca, L, Zosi, G, Botta, E, Bressani, T, Calvo, D, Costa, S, D'Isep, D, Feliciello, A, Filippi, A, Marcello, S, Rossetto, E, Agnello, M, Iazzi, F, Minetti, B, Pauli, G, Tessaro, S & Santi, L 1997, 'Study of the p̄p → 2π⁺2π^- annihilation from S states', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 414, n. 1-2, pagg. 220-228. https://doi.org/10.1016/S0370-2693(97)01189-1

TY - JOUR

T1 - Study of the p̄p → 2π+2π- annihilation from S states

AU - Bertin, A.

AU - Bruschi, M.

AU - Capponi, M.

AU - Collamati, A.

AU - De Castro, S.

AU - Dona, R.

AU - Ferretti, A.

AU - Galli, D.

AU - Giacobbe, B.

AU - Marconi, U.

AU - Massa, I.

AU - Piccinini, M.

AU - Semprini Cesari, N.

AU - Spighi, R.

AU - Vecchi, S.

AU - Vigotti, F.

AU - Villa, M.

AU - Vitale, A.

AU - Zoccoli, A.

AU - Corradini, M.

AU - Donzella, A.

AU - Lodi Rizzini, E.

AU - Venturelli, L.

AU - Zenoni, A.

AU - Cicalò, C.

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 - Sapozhnikov, M. G.

AU - Tretyak, V. I.

AU - Poli, M.

AU - Gianotti, P.

AU - Guaraldo, C.

AU - Lanaro, A.

AU - Lucherini, V.

AU - Nichitiu, F.

AU - Petrascu, C.

AU - Rosca, A.

AU - Ableev, V. G.

AU - Cavion, C.

AU - Gastaldi, U.

AU - Lombardi, M.

AU - Maron, G.

AU - Vannucci, L.

AU - Vedovato, G.

AU - Bendiscioli, G.

AU - Filippini, V.

AU - Fontana, A.

AU - Montagna, P.

AU - Rotondi, A.

AU - Saino, A.

AU - Salvini, P.

AU - Scoglio, C.

AU - Temnikov, P.

AU - Balestra, F.

AU - Bussa, M. P.

AU - Busso, L.

AU - Cerello, P.

AU - Denisov, O. Yu

AU - Ferrero, L.

AU - Garfagnini, R.

AU - Grasso, A.

AU - Maggiora, A.

AU - Panzieri, D.

AU - Tosello, F.

AU - Valacca, L.

AU - Zosi, G.

AU - Botta, E.

AU - Bressani, T.

AU - Calvo, D.

AU - Costa, S.

AU - D'Isep, D.

AU - Feliciello, A.

AU - Filippi, A.

AU - Marcello, S.

AU - Rossetto, E.

AU - Agnello, M.

AU - Iazzi, F.

AU - Minetti, B.

AU - Pauli, G.

AU - Tessaro, S.

AU - Santi, L.

PY - 1997/11/20

Y1 - 1997/11/20

N2 - The results of the spin-parity analysis of p̄p → 2π+2π- annihilations at very low momentum p̄ (≈ 50 MeV/c) are reported. To describe the data the production of the ρ,f2,a2 and a1 mesons and the presence of the ππ interaction in S-wave (the σ term) in the final state are necessary. The best fit solution requires also the presence of a ρ′ state of mass and width M = 1.282 ± 0.037, Γ = 0.236 ± 0.036 GeV/c2 and of a heavy pion π(1300) of mass and width M = 1.275 ± 0.015, Γ = 0.218 ± 0.100 GeV/c2. The measured fraction of the annihilation cross section into 2π+2π- is (7.61 ± 0.35)·10-2.

AB - The results of the spin-parity analysis of p̄p → 2π+2π- annihilations at very low momentum p̄ (≈ 50 MeV/c) are reported. To describe the data the production of the ρ,f2,a2 and a1 mesons and the presence of the ππ interaction in S-wave (the σ term) in the final state are necessary. The best fit solution requires also the presence of a ρ′ state of mass and width M = 1.282 ± 0.037, Γ = 0.236 ± 0.036 GeV/c2 and of a heavy pion π(1300) of mass and width M = 1.275 ± 0.015, Γ = 0.218 ± 0.100 GeV/c2. The measured fraction of the annihilation cross section into 2π+2π- is (7.61 ± 0.35)·10-2.

UR - http://www.scopus.com/inward/record.url?scp=0347873696&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(97)01189-1

DO - 10.1016/S0370-2693(97)01189-1

M3 - Article

SN - 0370-2693

VL - 414

SP - 220

EP - 228

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 - 1-2