Study of the χc0(13 P0) state of charmonium formed in pp anihilations

M. Ambrogiani; S. Argirò; S. Bagnasco; W. Baldini; D. Bettoni; G. Borreani; A. Buzzo; R. Calabrese; R. Cester; P. Dalpiaz; X. Fan; G. Garzoglio; K. E. Gollwitzer; A. Hahn; S. Jin; J. Kasper; G. Lasio; M. Lo Vetere; E. Luppi; P. Maas; M. Macrì; M. Mandelkern; F. Marchetto; M. Marinelli; W. Marsh; M. Martini; E. Menichetti; R. Mussa; M. M. Obertino; M. Pallavicini; N. Pastrone; C. Patrignani; T. K. Pedlar; J. Peoples; S. Pordes; E. Robutti; J. Rosen; P. Rumerio; A. Santroni; M. Savriè; J. Schultz; K. K. Seth; G. Stancari; M. Stancari; J. Streets; A. Tomaradze; S. Werkema; G. Zioulas

doi:10.1103/PhysRevLett.83.2902

Study of the χc0(1³ P₀) state of charmonium formed in pp anihilations

M. Ambrogiani, S. Argirò, S. Bagnasco, W. Baldini, D. Bettoni, G. Borreani, A. Buzzo, R. Calabrese, R. Cester, P. Dalpiaz, X. Fan, G. Garzoglio, K. E. Gollwitzer, A. Hahn, S. Jin, J. Kasper, G. Lasio, M. Lo Vetere, E. Luppi, P. MaasM. Macrì, M. Mandelkern, F. Marchetto, M. Marinelli, W. Marsh, M. Martini, E. Menichetti, R. Mussa, M. M. Obertino, M. Pallavicini, N. Pastrone, C. Patrignani, T. K. Pedlar, J. Peoples, S. Pordes, E. Robutti, J. Rosen, P. Rumerio, A. Santroni, M. Savriè, J. Schultz, K. K. Seth, G. Stancari, M. Stancari, J. Streets, A. Tomaradze, S. Werkema, G. Zioulas

Physics and Astronomy

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Abstract

The resonance parameters of χ _c0, the ³1P₀ resonance of charmonium, have been measured at the Fermilab Antiproton Accumulator by means of the reaction pp → χc0 → γ J/ψ → γ (e⁺, e^-. The results are M(ψ^c0) = 3417.4^+1.8_-1.9 ± 0.2 Me V/c², Τ(03C8;c0 → pp) × B(ψc0 → J/Ψ γ) × B(J/ψ → e⁺e⁻) = 2.89^{+ 0.67}_{- 0.53} ± 0.14 eV. Using known branching ratios we also obtain Τ (Χc0 → pp) = 8.0^+1.9+3.5_-1.5-1.9keV. These results are discussed in relation to the other Χ_CJ states and to theoretical predictions.

Original language	English (US)
Pages (from-to)	2902-2905
Number of pages	4
Journal	Physical review letters
Volume	83
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.83.2902
State	Published - 1999

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Physics and Astronomy(all)

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10.1103/PhysRevLett.83.2902

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Ambrogiani, M., Argirò, S., Bagnasco, S., Baldini, W., Bettoni, D., Borreani, G., Buzzo, A., Calabrese, R., Cester, R., Dalpiaz, P., Fan, X., Garzoglio, G., Gollwitzer, K. E., Hahn, A., Jin, S., Kasper, J., Lasio, G., Lo Vetere, M., Luppi, E., ... Zioulas, G. (1999). Study of the χc0(1³ P₀) state of charmonium formed in pp anihilations. Physical review letters, 83(15), 2902-2905. https://doi.org/10.1103/PhysRevLett.83.2902

@article{eb6f984255434c7c8c07b09ecb19cfaa,

title = "Study of the χc0(13 P0) state of charmonium formed in pp anihilations",

abstract = "The resonance parameters of χ c0, the 31P0 resonance of charmonium, have been measured at the Fermilab Antiproton Accumulator by means of the reaction pp → χc0 → γ J/ψ → γ (e+, e-. The results are M(ψc0) = 3417.4+1.8-1.9 ± 0.2 Me V/c2, Τ(03C8;c0 → pp) × B(ψc0 → J/Ψ γ) × B(J/ψ → e+e−) = 2.89+ 0.67- 0.53 ± 0.14 eV. Using known branching ratios we also obtain Τ (Χc0 → pp) = 8.0+1.9+3.5-1.5-1.9keV. These results are discussed in relation to the other ΧCJ states and to theoretical predictions.",

author = "M. Ambrogiani and S. Argir{\`o} and S. Bagnasco and W. Baldini and D. Bettoni and G. Borreani and A. Buzzo and R. Calabrese and R. Cester and P. Dalpiaz and X. Fan and G. Garzoglio and Gollwitzer, {K. E.} and A. Hahn and S. Jin and J. Kasper and G. Lasio and {Lo Vetere}, M. and E. Luppi and P. Maas and M. Macr{\`i} and M. Mandelkern and F. Marchetto and M. Marinelli and W. Marsh and M. Martini and E. Menichetti and R. Mussa and Obertino, {M. M.} and M. Pallavicini and N. Pastrone and C. Patrignani and Pedlar, {T. K.} and J. Peoples and S. Pordes and E. Robutti and J. Rosen and P. Rumerio and A. Santroni and M. Savri{\`e} and J. Schultz and Seth, {K. K.} and G. Stancari and M. Stancari and J. Streets and A. Tomaradze and S. Werkema and G. Zioulas",

year = "1999",

doi = "10.1103/PhysRevLett.83.2902",

language = "English (US)",

volume = "83",

pages = "2902--2905",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "15",

}

Ambrogiani, M, Argirò, S, Bagnasco, S, Baldini, W, Bettoni, D, Borreani, G, Buzzo, A, Calabrese, R, Cester, R, Dalpiaz, P, Fan, X, Garzoglio, G, Gollwitzer, KE, Hahn, A, Jin, S, Kasper, J, Lasio, G, Lo Vetere, M, Luppi, E, Maas, P, Macrì, M, Mandelkern, M, Marchetto, F, Marinelli, M, Marsh, W, Martini, M, Menichetti, E, Mussa, R, Obertino, MM, Pallavicini, M, Pastrone, N, Patrignani, C, Pedlar, TK, Peoples, J, Pordes, S, Robutti, E, Rosen, J, Rumerio, P, Santroni, A, Savriè, M, Schultz, J, Seth, KK, Stancari, G, Stancari, M, Streets, J, Tomaradze, A, Werkema, S & Zioulas, G 1999, 'Study of the χc0(1³ P₀) state of charmonium formed in pp anihilations', Physical review letters, vol. 83, no. 15, pp. 2902-2905. https://doi.org/10.1103/PhysRevLett.83.2902

TY - JOUR

T1 - Study of the χc0(13 P0) state of charmonium formed in pp anihilations

AU - Ambrogiani, M.

AU - Argirò, S.

AU - Bagnasco, S.

AU - Baldini, W.

AU - Bettoni, D.

AU - Borreani, G.

AU - Buzzo, A.

AU - Calabrese, R.

AU - Cester, R.

AU - Dalpiaz, P.

AU - Fan, X.

AU - Garzoglio, G.

AU - Gollwitzer, K. E.

AU - Hahn, A.

AU - Jin, S.

AU - Kasper, J.

AU - Lasio, G.

AU - Lo Vetere, M.

AU - Luppi, E.

AU - Maas, P.

AU - Macrì, M.

AU - Mandelkern, M.

AU - Marchetto, F.

AU - Marinelli, M.

AU - Marsh, W.

AU - Martini, M.

AU - Menichetti, E.

AU - Mussa, R.

AU - Obertino, M. M.

AU - Pallavicini, M.

AU - Pastrone, N.

AU - Patrignani, C.

AU - Pedlar, T. K.

AU - Peoples, J.

AU - Pordes, S.

AU - Robutti, E.

AU - Rosen, J.

AU - Rumerio, P.

AU - Santroni, A.

AU - Savriè, M.

AU - Schultz, J.

AU - Seth, K. K.

AU - Stancari, G.

AU - Stancari, M.

AU - Streets, J.

AU - Tomaradze, A.

AU - Werkema, S.

AU - Zioulas, G.

PY - 1999

Y1 - 1999

N2 - The resonance parameters of χ c0, the 31P0 resonance of charmonium, have been measured at the Fermilab Antiproton Accumulator by means of the reaction pp → χc0 → γ J/ψ → γ (e+, e-. The results are M(ψc0) = 3417.4+1.8-1.9 ± 0.2 Me V/c2, Τ(03C8;c0 → pp) × B(ψc0 → J/Ψ γ) × B(J/ψ → e+e−) = 2.89+ 0.67- 0.53 ± 0.14 eV. Using known branching ratios we also obtain Τ (Χc0 → pp) = 8.0+1.9+3.5-1.5-1.9keV. These results are discussed in relation to the other ΧCJ states and to theoretical predictions.

AB - The resonance parameters of χ c0, the 31P0 resonance of charmonium, have been measured at the Fermilab Antiproton Accumulator by means of the reaction pp → χc0 → γ J/ψ → γ (e+, e-. The results are M(ψc0) = 3417.4+1.8-1.9 ± 0.2 Me V/c2, Τ(03C8;c0 → pp) × B(ψc0 → J/Ψ γ) × B(J/ψ → e+e−) = 2.89+ 0.67- 0.53 ± 0.14 eV. Using known branching ratios we also obtain Τ (Χc0 → pp) = 8.0+1.9+3.5-1.5-1.9keV. These results are discussed in relation to the other ΧCJ states and to theoretical predictions.

UR - http://www.scopus.com/inward/record.url?scp=0001551641&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001551641&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.83.2902

DO - 10.1103/PhysRevLett.83.2902

M3 - Article

AN - SCOPUS:0001551641

SN - 0031-9007

VL - 83

SP - 2902

EP - 2905

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

ER -

Study of the χc0(1³ P₀) state of charmonium formed in pp anihilations

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