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Dive into the research topics where R. Garfagnini is active.

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Featured researches published by R. Garfagnini.


Physical Review Letters | 2010

Indication of a deeply bound and compact K- pp state formed in the pp- -> pLambdaK+ reaction at 2.85 GeV.

T. Yamazaki; M. Maggiora; P. Kienle; K. Suzuki; A. Amoroso; M. Alexeev; F. Balestra; Y. Bedfer; R. Bertini; L.C. Bland; A. Brenschede; F. Brochard; M. P. Bussa; Seonho Choi; M. L. Colantoni; Dressler R; M. Dzemidzic; Jc Faivre; L. Ferrero; J. Foryciarz; Fröhlich I; Frolov; R. Garfagnini; A. Grasso; S. Heinz; W. W. Jacobs; W. Kühn; A. Maggiora; D. Panzieri; H.-W. Pfaff

We have analyzed data of the DISTO experiment on the exclusive pp --> pLambdaK+ reaction at 2.85 GeV to search for a strongly bound compact K- pp(approximately = X) state to be formed in the pp --> K+ + X reaction. The observed spectra of the K+ missing mass and the pLambda invariant-mass with high transverse momenta of p and K+ revealed a broad distinct peak of 26-sigma confidence with a mass M(X)=2267+/-3(stat)+/-5(syst) MeV/c2 and a width Gamma(X)=118+/-8(stat)+/-10(syst) MeV. The enormously large cross section indicates formation of a compact K- pp with a large binding energy of B(K)=103 MeV, which can be a possible gateway toward cold and dense kaonic nuclear matter.


Physics Letters B | 1999

p̄p annihilation cross section at very low energy

A. Zenoni; A. Bianconi; G. Bonomi; M. Corradini; A. Donzella; E. Lodi Rizzini; L. Venturelli; A. Bertin; M. Bruschi; M. Capponi; S. De Castro; R. Donà; D. Galli; Benedetto Giacobbe; U. Marconi; I. Massa; M. Piccinini; R. Spighi; V. Vagnoni; S. Vecchi; M. Villa; A. Vitale; A. Zoccoli; M. Poli; C. Cicalò; A. Masoni; S. Mauro; G. Puddu; S. Serci; G. Usai

Abstract The pp total annihilation cross section has been measured, with the Obelix apparatus at LEAR, at ten values of the antiproton incident momentum between 43 and 175 MeV/c. The values of the cross section show that the well known 1 p behaviour of the annihilation cross section is drastically modified at very low momenta, which demonstrates the important role of the Coulomb force in low energy pp interaction. Moreover, they do not present any explicit resonant behaviour. Finally, when compared to potential model calculations, the data suggest that the percentage of P-wave in pp interaction around 50 MeV/c antiproton incident momentum is less than 5%.


Physical Review C | 2000

phi and omega meson production in p p reactions at p(lab) = 3.67-GeV/c

F. Balestra; V. Chalyshev; R. Bertini; A. Manara; M. P. Bussa; V. Frolov; F. Brochard; A. Grasso; L. Ferrero; E. Grosse; M. Debowski; A. Popov; J. Ritman; A. Maggiora; S. E. Vigdor; J.-Cl. Faivre; Seonho Choi; I. V. Falomkin; Y. Bedfer; G. Piragino; M. Maggiora; A. Brenschede; V.V. Ivanov; I. Fröhlich; G. Zosi; S. Heinz; H.-W. Pfaff; J. Foryciarz; P. Salabura; G. B. Pontecorvo

The exclusive production cross sections for


Physics Letters B | 1999

New measurements of the p̄p annihilation cross section at very low energy

A. Zenoni; A. Bianconi; F Bocci; G. Bonomi; M. Corradini; A. Donzella; E. Lodi Rizzini; L. Venturelli; A. Bertin; M. Bruschi; M. Capponi; S. De Castro; R. Donà; D. Galli; Benedetto Giacobbe; U. Marconi; I. Massa; M. Piccinini; R. Spighi; V. Vagnoni; S. Vecchi; M. Villa; A. Vitale; A. Zoccoli; C. Cicalò; A. Masoni; S. Mauro; G. Puddu; S. Serci; G. Usai

\omega


Physics Letters B | 1992

Meson spectroscopy with antineutrons

A. Adamo; M. Agnello; F. Balestra; G. Belli; G. Bendiscioli; A. Bertin; P. Boccaccio; G.C. Bonazzola; T. Bressani; M. Bruschi; M.P. Bussa; L. Busso; D. Calvo; M. Capponi; M. Corradini; S. Costa; S. De Castro; F. D'Isep; L. Fava; A. Feliciello; L. Ferrero; V. Filippini; D. Galli; R. Garfagnini; U. Gastaldi; P. Gianotti; A. Grasso; C. Guaraldo; Felice Iazzi; A. Lanaro

and


Physics Letters B | 1994

φ and ω meson production in n¯p annihilation and the OZI rule

V.G. Ableev; M. Agnello; F. Balestra; G. Bendiscioli; A. Bertin; G.C. Bonazzola; E. Botta; T. Bressani; M. Bruschi; M.P. Bussa; L. Busso; D. Calvo; M. Capponi; B. Cereda; P. Cerello; C. Cicalò; M. Corradini; S. Costa; S. De Castro; F. D'Isep; A. Donzella; L. Fava; A. Feliciello; L. Ferrero; A. Filippi; V. Filippini; A. Fontana; T.D. Galli; R. Garfagnini; U. Gastaldi

\phi


Physics Letters B | 1999

p̄D and p̄ 4He annihilation cross sections at very low energy

A. Zenoni; A. Bianconi; G. Bonomi; M. Corradini; A. Donzella; E. Lodi Rizzini; L. Venturelli; A. Bertin; M. Bruschi; M. Capponi; S. De Castro; R. Donà; D. Galli; B. Giacobbe; U. Marconi; I. Massa; M. Piccinini; R. Spighi; V. Vagnoni; S. Vecchi; M. Villa; A. Vitale; A. Zoccoli; M. Poli; C. Cicalò; A. Masoni; S. Mauro; G. Puddu; S. Serci; G. Usai

mesons have been measured in proton-proton reactions at


Physics Letters B | 1999

K- meson production in the proton proton reaction at 3.67-GeV/c

F. Balestra; Y. Bedfer; R. Bertini; L.C. Bland; A. Brenschede; F. Brochard; M. P. Bussa; V. Tchalyshev; Seonho Choi; M. Debowski; M. Dzemidzic; J.-Cl. Faivre; I. V. Falomkin; L. Fava; L. Ferrero; J. Foryciarz; I. Fröhlich; V. Frolov; R. Garfagnini; D. R. Gill; A. Grasso; E. Grosse; S. Heinz; V.V. Ivanov; W.W. Jacobs; W. Kühn; A. Maggiora; M. Maggiora; A. Manara; D. Panzieri

p_{lab}=3.67


Nuovo Cimento Della Societa Italiana Di Fisica A-nuclei Particles and Fields | 1976

Elastic scattering of π±-Mesons on3He in the energy interval (68÷208) MeV

Yu. A. Shcherbakov; T. Angelescu; I. V. Falomkin; M.M. Kulyukin; V. I. Lyashenko; R. Mach; A. Mihul; Nguyen Minh Kao; F. Nichitiu; G. B. Pontecorvo; V. K. Sarycheva; M.G. Sapozhnikov; M. Semerdjieva; T. M. Troshev; N. I. Trosheva; F. Balestra; L. Busso; R. Garfagnini; G. Piragino

GeV/c. The observed


Nuovo Cimento Della Societa Italiana Di Fisica A-nuclei Particles and Fields | 1976

Elastic scattering of π±-mesons on4He in the energy interval (68÷208) MeV@@@Рассеяние эаряженных пионов на ядрах4He в диапаэоне знергий (68÷208) MзB

Yu. A. Shcherbakov; T. Angelescu; I. V. Falomkin; M.M. Kulyukin; V. I. Lyashenko; R. Mach; A. Mihul; Nguyen Minh Kao; F. Nichitiu; G. B. Pontecorvo; V. K. Sarychieva; M.G. Sapozhnikov; M. Semerdjieva; T. M. Troshev; N. I. Trosheva; F. Balestra; L. Busso; R. Garfagnini; G. Piragino

\phi/\omega

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A. Bertin

University of Bologna

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