E ι decay to KKπ in pp annihilation at rest

A. Bertin; M. Bruschi; B. Cereda; S. De Castro; A. Ferretti; D. Galli; B. Giacobbe; U. Marconi; M. Poli; M. Piccinini; N. Semprini-Cesari; R. Spighi; S. Vecchi; A. Vezzani; F. Vigotti; M. Villa; A. Vitale; A. Zoccoli; M. Corradini; A. Donzella; E. Lodi Rizzini; L. Venturelli; A. Zenoni; C. Cicaló; A. Lai; A. Masoni; L. Musa; G. Puddu; S. Serci; P. P. Temnikov; G. Usai; V. G. Ableev; O. Yu Denisov; A. M. Rozhdestvensky; M. G. Sapozhnikov; V. I. Tretyak; P. Gianotti; C. Guaraldo; A. Lanaro; V. Lucherini; F. Nichitiu; C. Petrascu; A. Rosca; C. Cavion; U. Gastaldi; G. Maron; M. Morando; G. Bendiscioli; V. Filippini; A. Fontana; P. Montagna; A. Rotondi; A. Saino; P. Salvini; F. Balestra; E. Botta; T. Bressani; M. P. Bussa; L. Busso; D. Calvo; P. Cerello; S. Costa; A. Feliciello; L. Ferrero; A. Filippi; R. Garfagnini; A. Grasso; A. Maggiora; S. Marcello; N. Mirfakhrai; D. Panzieri; D. Parena; E. Rossetto; F. Tosello; G. Zosi; M. Agnello; F. Iazzi; B. Minetti; G. Pauli; S. Tessaro; L. Santi

doi:10.1016/0370-2693(95)01136-E

E ι decay to KKπ in pp annihilation at rest

A. Bertin, M. Bruschi, B. Cereda, S. De Castro, A. Ferretti, D. Galli, B. Giacobbe, U. Marconi, M. Poli, M. Piccinini, N. Semprini-Cesari, R. Spighi, S. Vecchi, A. Vezzani, F. Vigotti, M. Villa, A. Vitale, A. Zoccoli, M. Corradini, A. DonzellaE. Lodi Rizzini, L. Venturelli, A. Zenoni, C. Cicaló, A. Lai, A. Masoni, L. Musa, G. Puddu, S. Serci, P. P. Temnikov, G. Usai, V. G. Ableev, O. Yu Denisov, A. M. Rozhdestvensky, M. G. Sapozhnikov, V. I. Tretyak, P. Gianotti, C. Guaraldo, A. Lanaro, V. Lucherini, F. Nichitiu, C. Petrascu, A. Rosca, C. Cavion, U. Gastaldi, G. Maron, M. Morando, G. Bendiscioli, V. Filippini, A. Fontana, P. Montagna, A. Rotondi, A. Saino, P. Salvini, F. Balestra, E. Botta, T. Bressani, M. P. Bussa, L. Busso, D. Calvo, P. Cerello, S. Costa, A. Feliciello, L. Ferrero, A. Filippi, R. Garfagnini, A. Grasso, A. Maggiora, S. Marcello, N. Mirfakhrai, D. Panzieri, D. Parena, E. Rossetto, F. Tosello, G. Zosi, 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 analysis of 3940 (KKπ)ππ events from a sample of 18 millions pp annihilations in the liquid hydrogen target of the OBELIX spectrometer at LEAR (CERN) are presented. The presence of two pseudoscalar states at 1.416±0.002GeV/c², with width 0.050±0.004GeV/c², and at 1.46±0.01GeV/c², with width 0.105±0.015GeV/c², is established. The lighter mass resonance decays mainly to KKπ, possibly with final state interactions and a small contribution coming from a₀π. The higher mass 0^-+ state, which is seen for the first time in pp annihilation at rest, decays only to K^*K. Masses, widths and decay modes are in agreement with the analysis of J Ψ radiative decay performed by the Mark III Collaboration. From the fit the G-parity was determined to be +1. The dominant three-body decay mode of the lighter pseudoscalar is observed for the first time in this measurement.

Lingua originale	Inglese
pagine (da-a)	187-198
Numero di pagine	12
Rivista	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	361
Numero di pubblicazione	1-4
DOI	https://doi.org/10.1016/0370-2693(95)01136-E
Stato di pubblicazione	Pubblicato - 2 nov 1995
Pubblicato esternamente	Sì

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10.1016/0370-2693(95)01136-E

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Bertin, A., Bruschi, M., Cereda, B., De Castro, S., Ferretti, A., Galli, D., Giacobbe, B., Marconi, U., Poli, M., Piccinini, M., Semprini-Cesari, N., Spighi, R., Vecchi, S., Vezzani, A., Vigotti, F., Villa, M., Vitale, A., Zoccoli, A., Corradini, M., ... Santi, L. (1995). E ι decay to KKπ in pp annihilation at rest. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 361(1-4), 187-198. https://doi.org/10.1016/0370-2693(95)01136-E

@article{2e9005731a2e45ef8f6cb104a953ab5a,

title = "E ι decay to KKπ in pp annihilation at rest",

abstract = "The results of the analysis of 3940 (KKπ)ππ events from a sample of 18 millions pp annihilations in the liquid hydrogen target of the OBELIX spectrometer at LEAR (CERN) are presented. The presence of two pseudoscalar states at 1.416±0.002GeV/c2, with width 0.050±0.004GeV/c2, and at 1.46±0.01GeV/c2, with width 0.105±0.015GeV/c2, is established. The lighter mass resonance decays mainly to KKπ, possibly with final state interactions and a small contribution coming from a0π. The higher mass 0-+ state, which is seen for the first time in pp annihilation at rest, decays only to K*K. Masses, widths and decay modes are in agreement with the analysis of J Ψ radiative decay performed by the Mark III Collaboration. From the fit the G-parity was determined to be +1. The dominant three-body decay mode of the lighter pseudoscalar is observed for the first time in this measurement.",

author = "A. Bertin and M. Bruschi and B. Cereda and {De Castro}, S. and A. Ferretti and D. Galli and B. Giacobbe and U. Marconi and M. Poli and M. Piccinini and N. Semprini-Cesari and R. Spighi and S. Vecchi and A. Vezzani 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. Lai and A. Masoni and L. Musa and G. Puddu and S. Serci and Temnikov, {P. P.} and G. Usai and Ableev, {V. G.} and Denisov, {O. Yu} and Rozhdestvensky, {A. M.} and Sapozhnikov, {M. G.} and Tretyak, {V. I.} and P. Gianotti and C. Guaraldo and A. Lanaro and V. Lucherini and F. Nichitiu and C. Petrascu and A. Rosca and C. Cavion and U. Gastaldi and G. Maron and M. Morando and G. Bendiscioli and V. Filippini and A. Fontana and P. Montagna and A. Rotondi and A. Saino and P. Salvini and F. Balestra and E. Botta and T. Bressani and Bussa, {M. P.} and L. Busso and D. Calvo and P. Cerello and S. Costa and A. Feliciello and L. Ferrero and A. Filippi and R. Garfagnini and A. Grasso and A. Maggiora and S. Marcello and N. Mirfakhrai and D. Panzieri and D. Parena and E. Rossetto and F. Tosello and G. Zosi and M. Agnello and F. Iazzi and B. Minetti and G. Pauli and S. Tessaro and L. Santi",

year = "1995",

month = nov,

day = "2",

doi = "10.1016/0370-2693(95)01136-E",

language = "English",

volume = "361",

pages = "187--198",

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

issn = "0370-2693",

publisher = "Elsevier",

number = "1-4",

}

Bertin, A, Bruschi, M, Cereda, B, De Castro, S, Ferretti, A, Galli, D, Giacobbe, B, Marconi, U, Poli, M, Piccinini, M, Semprini-Cesari, N, Spighi, R, Vecchi, S, Vezzani, A, Vigotti, F, Villa, M, Vitale, A, Zoccoli, A, Corradini, M, Donzella, A, Lodi Rizzini, E, Venturelli, L, Zenoni, A, Cicaló, C, Lai, A, Masoni, A, Musa, L, Puddu, G, Serci, S, Temnikov, PP, Usai, G, Ableev, VG, Denisov, OY, Rozhdestvensky, AM, Sapozhnikov, MG, Tretyak, VI, Gianotti, P, Guaraldo, C, Lanaro, A, Lucherini, V, Nichitiu, F, Petrascu, C, Rosca, A, Cavion, C, Gastaldi, U, Maron, G, Morando, M, Bendiscioli, G, Filippini, V, Fontana, A, Montagna, P, Rotondi, A, Saino, A, Salvini, P, Balestra, F, Botta, E, Bressani, T, Bussa, MP, Busso, L, Calvo, D, Cerello, P, Costa, S, Feliciello, A, Ferrero, L, Filippi, A, Garfagnini, R, Grasso, A, Maggiora, A, Marcello, S, Mirfakhrai, N, Panzieri, D, Parena, D, Rossetto, E, Tosello, F, Zosi, G, Agnello, M, Iazzi, F, Minetti, B, Pauli, G, Tessaro, S & Santi, L 1995, 'E ι decay to KKπ in pp annihilation at rest', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 361, n. 1-4, pagg. 187-198. https://doi.org/10.1016/0370-2693(95)01136-E

TY - JOUR

T1 - E ι decay to KKπ in pp annihilation at rest

AU - Bertin, A.

AU - Bruschi, M.

AU - Cereda, B.

AU - De Castro, S.

AU - Ferretti, A.

AU - Galli, D.

AU - Giacobbe, B.

AU - Marconi, U.

AU - Poli, M.

AU - Piccinini, M.

AU - Semprini-Cesari, N.

AU - Spighi, R.

AU - Vecchi, S.

AU - Vezzani, A.

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 - Cicaló, C.

AU - Lai, A.

AU - Masoni, A.

AU - Musa, L.

AU - Puddu, G.

AU - Serci, S.

AU - Temnikov, P. P.

AU - Usai, G.

AU - Ableev, V. G.

AU - Denisov, O. Yu

AU - Rozhdestvensky, A. M.

AU - Sapozhnikov, M. G.

AU - Tretyak, V. I.

AU - Gianotti, P.

AU - Guaraldo, C.

AU - Lanaro, A.

AU - Lucherini, V.

AU - Nichitiu, F.

AU - Petrascu, C.

AU - Rosca, A.

AU - Cavion, C.

AU - Gastaldi, U.

AU - Maron, G.

AU - Morando, M.

AU - Bendiscioli, G.

AU - Filippini, V.

AU - Fontana, A.

AU - Montagna, P.

AU - Rotondi, A.

AU - Saino, A.

AU - Salvini, P.

AU - Balestra, F.

AU - Botta, E.

AU - Bressani, T.

AU - Bussa, M. P.

AU - Busso, L.

AU - Calvo, D.

AU - Cerello, P.

AU - Costa, S.

AU - Feliciello, A.

AU - Ferrero, L.

AU - Filippi, A.

AU - Garfagnini, R.

AU - Grasso, A.

AU - Maggiora, A.

AU - Marcello, S.

AU - Mirfakhrai, N.

AU - Panzieri, D.

AU - Parena, D.

AU - Rossetto, E.

AU - Tosello, F.

AU - Zosi, G.

AU - Agnello, M.

AU - Iazzi, F.

AU - Minetti, B.

AU - Pauli, G.

AU - Tessaro, S.

AU - Santi, L.

PY - 1995/11/2

Y1 - 1995/11/2

N2 - The results of the analysis of 3940 (KKπ)ππ events from a sample of 18 millions pp annihilations in the liquid hydrogen target of the OBELIX spectrometer at LEAR (CERN) are presented. The presence of two pseudoscalar states at 1.416±0.002GeV/c2, with width 0.050±0.004GeV/c2, and at 1.46±0.01GeV/c2, with width 0.105±0.015GeV/c2, is established. The lighter mass resonance decays mainly to KKπ, possibly with final state interactions and a small contribution coming from a0π. The higher mass 0-+ state, which is seen for the first time in pp annihilation at rest, decays only to K*K. Masses, widths and decay modes are in agreement with the analysis of J Ψ radiative decay performed by the Mark III Collaboration. From the fit the G-parity was determined to be +1. The dominant three-body decay mode of the lighter pseudoscalar is observed for the first time in this measurement.

AB - The results of the analysis of 3940 (KKπ)ππ events from a sample of 18 millions pp annihilations in the liquid hydrogen target of the OBELIX spectrometer at LEAR (CERN) are presented. The presence of two pseudoscalar states at 1.416±0.002GeV/c2, with width 0.050±0.004GeV/c2, and at 1.46±0.01GeV/c2, with width 0.105±0.015GeV/c2, is established. The lighter mass resonance decays mainly to KKπ, possibly with final state interactions and a small contribution coming from a0π. The higher mass 0-+ state, which is seen for the first time in pp annihilation at rest, decays only to K*K. Masses, widths and decay modes are in agreement with the analysis of J Ψ radiative decay performed by the Mark III Collaboration. From the fit the G-parity was determined to be +1. The dominant three-body decay mode of the lighter pseudoscalar is observed for the first time in this measurement.

UR - http://www.scopus.com/inward/record.url?scp=0347447831&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(95)01136-E

DO - 10.1016/0370-2693(95)01136-E

M3 - Article

SN - 0370-2693

VL - 361

SP - 187

EP - 198

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 - 1-4

ER -

E ι decay to KKπ in pp annihilation at rest

Abstract

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