Protonium annihilation into π0π0 at rest in a liquid hydrogen target

M. Bargiotti; A. Bertin; M. Bruschi; M. Capponi; S. De Castro; R. Donà; L. Fabbri; P. Faccioli; D. Galli; B. Giacobbe; U. Marconi; I. Massa; M. Piccinini; N. Semprini Cesari; R. Spighi; V. Vagnoni; S. Vecchi; M. Villa; A. Vitale; A. Zoccoli; M. Poli; G. Bonomi; M. P. Bussa; M. Corradini; 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; R. A. Ricci; V. Filippini; A. Fontana; P. Montagna; A. Rotondi; P. Salvini; F. Balestra; P. Cerello; O. Denisov; L. Ferrero; R. Garfagnini; A. Grasso; A. Maggiora; A. Panzarasa; D. Panzieri; F. Tosello; M. Astrua; E. Botta; T. Bressani; D. Calvo; A. Feliciello; A. Filippi; N. Mirfakhrai; S. Marcello; M. Agnello; F. Iazzi

doi:10.1103/PhysRevD.65.012001

Protonium annihilation into π⁰π⁰ at rest in a liquid hydrogen target

M. Bargiotti
, A. Bertin
, M. Bruschi
, M. Capponi
, S. De Castro
, R. Donà
, L. Fabbri
, P. Faccioli
, D. Galli
, B. Giacobbe
, U. Marconi
, I. Massa
, M. Piccinini
, N. Semprini Cesari
, R. Spighi
, V. Vagnoni
, S. Vecchi
, M. Villa
, A. Vitale
, A. Zoccoli

M. Poli, G. Bonomi, M. P. Bussa, M. Corradini, 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, R. A. Ricci, V. Filippini, A. Fontana, P. Montagna, A. Rotondi, P. Salvini, F. Balestra, P. Cerello, O. Denisov, L. Ferrero, R. Garfagnini, A. Grasso, A. Maggiora, A. Panzarasa, D. Panzieri, F. Tosello, M. Astrua, E. Botta, T. Bressani, D. Calvo, A. Feliciello, A. Filippi, N. Mirfakhrai, S. Marcello, M. Agnello, F. Iazzi

Research output: Contribution to journal › Article › peer-review

Abstract

The annihilation frequency of the reaction p̄p→π ⁰π⁰ at rest in liquid hydrogen has been measured by the Obelix experiment by using different apparatus configurations and trigger conditions. The value obtained is f(π⁰π⁰, LH) = (2.8±0.1_stat±0.4_syst)×10 ^-4. With the same data samples, the π⁰η annihilation frequency has been determined to f(π⁰η, LH) = (0.9±0.2_stat±0.15_syst)×10 ^-4. The results are discussed within the frame of the present experimental situation.

Original language	English
Article number	012001
Journal	Physical Review D
Volume	65
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.65.012001
Publication status	Published - 2002
Externally published	Yes

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10.1103/PhysRevD.65.012001

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Bargiotti, M., Bertin, A., Bruschi, M., Capponi, M., De Castro, S., Donà, R., Fabbri, L., Faccioli, P., Galli, D., Giacobbe, B., Marconi, U., Massa, I., Piccinini, M., Semprini Cesari, N., Spighi, R., Vagnoni, V., Vecchi, S., Villa, M., Vitale, A., ... Iazzi, F. (2002). Protonium annihilation into π⁰π⁰ at rest in a liquid hydrogen target. Physical Review D, 65(1), Article 012001. https://doi.org/10.1103/PhysRevD.65.012001

@article{b67c40af8271472a9e3ba2afead97038,

title = "Protonium annihilation into π0π0 at rest in a liquid hydrogen target",

abstract = "The annihilation frequency of the reaction {\=p}p→π 0π0 at rest in liquid hydrogen has been measured by the Obelix experiment by using different apparatus configurations and trigger conditions. The value obtained is f(π0π0, LH) = (2.8±0.1stat±0.4syst)×10 -4. With the same data samples, the π0η annihilation frequency has been determined to f(π0η, LH) = (0.9±0.2stat±0.15syst)×10 -4. The results are discussed within the frame of the present experimental situation.",

author = "M. Bargiotti and A. Bertin and M. Bruschi and M. Capponi and \{De Castro\}, S. and R. Don{\`a} and L. Fabbri and P. Faccioli and D. Galli and B. Giacobbe and U. Marconi and I. Massa and M. Piccinini and \{Semprini Cesari\}, N. and R. Spighi and V. Vagnoni and S. Vecchi and M. Villa and A. Vitale and A. Zoccoli and M. Poli and G. Bonomi and Bussa, \{M. P.\} and M. Corradini 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 Ricci, \{R. A.\} and V. Filippini and A. Fontana and P. Montagna and A. Rotondi and P. Salvini and F. Balestra and P. Cerello 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 M. Astrua and E. Botta and T. Bressani and D. Calvo and A. Feliciello and A. Filippi and N. Mirfakhrai and S. Marcello and M. Agnello and F. Iazzi",

year = "2002",

doi = "10.1103/PhysRevD.65.012001",

language = "English",

volume = "65",

journal = "Physical Review D",

issn = "0556-2821",

publisher = "American Institute of Physics",

number = "1",

}

Bargiotti, M, Bertin, A, Bruschi, M, Capponi, M, De Castro, S, Donà, R, Fabbri, L, Faccioli, P, Galli, D, Giacobbe, B, Marconi, U, Massa, I, Piccinini, M, Semprini Cesari, N, Spighi, R, Vagnoni, V, Vecchi, S, Villa, M, Vitale, A, Zoccoli, A, Poli, M, Bonomi, G, Bussa, MP, Corradini, M, 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, Ricci, RA, Filippini, V, Fontana, A, Montagna, P, Rotondi, A, Salvini, P, Balestra, F, Cerello, P, Denisov, O, Ferrero, L, Garfagnini, R, Grasso, A, Maggiora, A, Panzarasa, A, Panzieri, D, Tosello, F, Astrua, M, Botta, E, Bressani, T, Calvo, D, Feliciello, A, Filippi, A, Mirfakhrai, N, Marcello, S, Agnello, M & Iazzi, F 2002, 'Protonium annihilation into π⁰π⁰ at rest in a liquid hydrogen target', Physical Review D, vol. 65, no. 1, 012001. https://doi.org/10.1103/PhysRevD.65.012001

TY - JOUR

T1 - Protonium annihilation into π0π0 at rest in a liquid hydrogen target

AU - Bargiotti, M.

AU - Bertin, A.

AU - Bruschi, M.

AU - Capponi, M.

AU - De Castro, S.

AU - Donà, R.

AU - Fabbri, L.

AU - Faccioli, P.

AU - Galli, D.

AU - Giacobbe, B.

AU - Marconi, U.

AU - Massa, I.

AU - Piccinini, M.

AU - Semprini Cesari, N.

AU - Spighi, R.

AU - Vagnoni, V.

AU - Vecchi, S.

AU - Villa, M.

AU - Vitale, A.

AU - Zoccoli, A.

AU - Poli, M.

AU - Bonomi, G.

AU - Bussa, M. P.

AU - Corradini, M.

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 - Ricci, R. A.

AU - Filippini, V.

AU - Fontana, A.

AU - Montagna, P.

AU - Rotondi, A.

AU - Salvini, P.

AU - Balestra, F.

AU - Cerello, P.

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 - Astrua, M.

AU - Botta, E.

AU - Bressani, T.

AU - Calvo, D.

AU - Feliciello, A.

AU - Filippi, A.

AU - Mirfakhrai, N.

AU - Marcello, S.

AU - Agnello, M.

AU - Iazzi, F.

PY - 2002

Y1 - 2002

N2 - The annihilation frequency of the reaction p̄p→π 0π0 at rest in liquid hydrogen has been measured by the Obelix experiment by using different apparatus configurations and trigger conditions. The value obtained is f(π0π0, LH) = (2.8±0.1stat±0.4syst)×10 -4. With the same data samples, the π0η annihilation frequency has been determined to f(π0η, LH) = (0.9±0.2stat±0.15syst)×10 -4. The results are discussed within the frame of the present experimental situation.

AB - The annihilation frequency of the reaction p̄p→π 0π0 at rest in liquid hydrogen has been measured by the Obelix experiment by using different apparatus configurations and trigger conditions. The value obtained is f(π0π0, LH) = (2.8±0.1stat±0.4syst)×10 -4. With the same data samples, the π0η annihilation frequency has been determined to f(π0η, LH) = (0.9±0.2stat±0.15syst)×10 -4. The results are discussed within the frame of the present experimental situation.

UR - https://www.scopus.com/pages/publications/4243961979

U2 - 10.1103/PhysRevD.65.012001

DO - 10.1103/PhysRevD.65.012001

M3 - Article

SN - 0556-2821

VL - 65

JO - Physical Review D

JF - Physical Review D

IS - 1

M1 - 012001

ER -

Protonium annihilation into π⁰π⁰ at rest in a liquid hydrogen target

Abstract

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