E835 at FNAL: Charmonium spectroscopy in p̄p annihilations

Claudia Patrignani; M. Andreotti; S. Bagnasco; W. Baldini; D. Bettoni; G. Borreani; A. Buzzo; R. Calabrese; R. Cester; G. Cibinetto; P. Dalpiaz; G. Garzoglio; K. E. Gollwitzer; M. Graham; M. Hu; D. Joffe; J. Kasper; G. Lasio; M. Lo Vetere; E. Luppi; M. Macrì; M. Mandelkern; F. Marchetto; M. Marinelli; E. Menichetti; Z. Metreveli; R. Mussa; M. Negrini; M. M. Obertino; M. Pallavicini; N. Pastrone; T. K. Pedlar; S. Pordes; E. Robutti; W. Roethel; J. L. Rosen; P. Rumerio; R. Rusack; A. Santroni; J. Schultz; S. H. Seo; K. K. Seth; G. Stancari; M. Stancari; A. Tomaradze; I. Uman; T. Vidnovic; S. Werkema; P. Zweber

doi:10.1016/j.nuclphysbps.2005.01.017

E835 at FNAL: Charmonium spectroscopy in p̄p annihilations

Claudia Patrignani, M. Andreotti, S. Bagnasco, W. Baldini, D. Bettoni, G. Borreani, A. Buzzo, R. Calabrese, R. Cester, G. Cibinetto, P. Dalpiaz, G. Garzoglio, K. E. Gollwitzer, M. Graham, M. Hu, D. Joffe, J. Kasper, G. Lasio, M. Lo Vetere, E. LuppiM. Macrì, M. Mandelkern, F. Marchetto, M. Marinelli, E. Menichetti, Z. Metreveli, R. Mussa, M. Negrini, M. M. Obertino, M. Pallavicini, N. Pastrone, T. K. Pedlar, S. Pordes, E. Robutti, W. Roethel, J. L. Rosen, P. Rumerio, R. Rusack, A. Santroni, J. Schultz, S. H. Seo, K. K. Seth, G. Stancari, M. Stancari, A. Tomaradze, I. Uman, T. Vidnovic, S. Werkema, P. Zweber

Physics and Astronomy (Twin Cities)

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Abstract

I present preliminary results on the search for h_c in its η_cγ and J/ψπ⁰ decay modes. We observe an excess of η_cγ events near 3526 MeV that has a probability P ∼ 0.001 to arise from background fluctations. The resonance parameters are M = 3525.8±0.2±0.2 MeV, Γ ≤ 1 MeV, and 10.6±3.7±3.4(br) < Γ_p̄pB_ηc_γ < 12.8±4.8±4.5 (br) eV. We find no event excess within the search region in the J/ψπ⁰ mode.

Original language	English (US)
Pages (from-to)	98-103
Number of pages	6
Journal	Nuclear Physics B - Proceedings Supplements
Volume	142
Issue number	1-3 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.nuclphysbps.2005.01.017
State	Published - May 2005

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10.1016/j.nuclphysbps.2005.01.017

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Patrignani, C., Andreotti, M., Bagnasco, S., Baldini, W., Bettoni, D., Borreani, G., Buzzo, A., Calabrese, R., Cester, R., Cibinetto, G., Dalpiaz, P., Garzoglio, G., Gollwitzer, K. E., Graham, M., Hu, M., Joffe, D., Kasper, J., Lasio, G., Vetere, M. L., ... Zweber, P. (2005). E835 at FNAL: Charmonium spectroscopy in p̄p annihilations. Nuclear Physics B - Proceedings Supplements, 142(1-3 SPEC. ISS.), 98-103. https://doi.org/10.1016/j.nuclphysbps.2005.01.017

Patrignani, C, Andreotti, M, Bagnasco, S, Baldini, W, Bettoni, D, Borreani, G, Buzzo, A, Calabrese, R, Cester, R, Cibinetto, G, Dalpiaz, P, Garzoglio, G, Gollwitzer, KE, Graham, M, Hu, M, Joffe, D, Kasper, J, Lasio, G, Vetere, ML, Luppi, E, Macrì, M, Mandelkern, M, Marchetto, F, Marinelli, M, Menichetti, E, Metreveli, Z, Mussa, R, Negrini, M, Obertino, MM, Pallavicini, M, Pastrone, N, Pedlar, TK, Pordes, S, Robutti, E, Roethel, W, Rosen, JL, Rumerio, P, Rusack, R, Santroni, A, Schultz, J, Seo, SH, Seth, KK, Stancari, G, Stancari, M, Tomaradze, A, Uman, I, Vidnovic, T, Werkema, S & Zweber, P 2005, 'E835 at FNAL: Charmonium spectroscopy in p̄p annihilations', Nuclear Physics B - Proceedings Supplements, vol. 142, no. 1-3 SPEC. ISS., pp. 98-103. https://doi.org/10.1016/j.nuclphysbps.2005.01.017

@article{98c793574d234ea9b922af772d589a99,

title = "E835 at FNAL: Charmonium spectroscopy in {\=p}p annihilations",

abstract = "I present preliminary results on the search for hc in its ηcγ and J/ψπ0 decay modes. We observe an excess of ηcγ events near 3526 MeV that has a probability P ∼ 0.001 to arise from background fluctations. The resonance parameters are M = 3525.8±0.2±0.2 MeV, Γ ≤ 1 MeV, and 10.6±3.7±3.4(br) < Γ{\=p}pBηcγ < 12.8±4.8±4.5 (br) eV. We find no event excess within the search region in the J/ψπ0 mode.",

author = "Claudia Patrignani and M. Andreotti and S. Bagnasco and W. Baldini and D. Bettoni and G. Borreani and A. Buzzo and R. Calabrese and R. Cester and G. Cibinetto and P. Dalpiaz and G. Garzoglio and Gollwitzer, {K. E.} and M. Graham and M. Hu and D. Joffe and J. Kasper and G. Lasio and Vetere, {M. Lo} and E. Luppi and M. Macr{\`i} and M. Mandelkern and F. Marchetto and M. Marinelli and E. Menichetti and Z. Metreveli and R. Mussa and M. Negrini and Obertino, {M. M.} and M. Pallavicini and N. Pastrone and Pedlar, {T. K.} and S. Pordes and E. Robutti and W. Roethel and Rosen, {J. L.} and P. Rumerio and R. Rusack and A. Santroni and J. Schultz and Seo, {S. H.} and Seth, {K. K.} and G. Stancari and M. Stancari and A. Tomaradze and I. Uman and T. Vidnovic and S. Werkema and P. Zweber",

year = "2005",

month = may,

doi = "10.1016/j.nuclphysbps.2005.01.017",

language = "English (US)",

volume = "142",

pages = "98--103",

journal = "Nuclear Physics B - Proceedings Supplements",

issn = "0920-5632",

publisher = "Elsevier B.V.",

number = "1-3 SPEC. ISS.",

}

TY - JOUR

T1 - E835 at FNAL

T2 - Charmonium spectroscopy in p̄p annihilations

AU - Patrignani, Claudia

AU - Andreotti, M.

AU - Bagnasco, S.

AU - Baldini, W.

AU - Bettoni, D.

AU - Borreani, G.

AU - Buzzo, A.

AU - Calabrese, R.

AU - Cester, R.

AU - Cibinetto, G.

AU - Dalpiaz, P.

AU - Garzoglio, G.

AU - Gollwitzer, K. E.

AU - Graham, M.

AU - Hu, M.

AU - Joffe, D.

AU - Kasper, J.

AU - Lasio, G.

AU - Vetere, M. Lo

AU - Luppi, E.

AU - Macrì, M.

AU - Mandelkern, M.

AU - Marchetto, F.

AU - Marinelli, M.

AU - Menichetti, E.

AU - Metreveli, Z.

AU - Mussa, R.

AU - Negrini, M.

AU - Obertino, M. M.

AU - Pallavicini, M.

AU - Pastrone, N.

AU - Pedlar, T. K.

AU - Pordes, S.

AU - Robutti, E.

AU - Roethel, W.

AU - Rosen, J. L.

AU - Rumerio, P.

AU - Rusack, R.

AU - Santroni, A.

AU - Schultz, J.

AU - Seo, S. H.

AU - Seth, K. K.

AU - Stancari, G.

AU - Stancari, M.

AU - Tomaradze, A.

AU - Uman, I.

AU - Vidnovic, T.

AU - Werkema, S.

AU - Zweber, P.

PY - 2005/5

Y1 - 2005/5

N2 - I present preliminary results on the search for hc in its ηcγ and J/ψπ0 decay modes. We observe an excess of ηcγ events near 3526 MeV that has a probability P ∼ 0.001 to arise from background fluctations. The resonance parameters are M = 3525.8±0.2±0.2 MeV, Γ ≤ 1 MeV, and 10.6±3.7±3.4(br) < Γp̄pBηcγ < 12.8±4.8±4.5 (br) eV. We find no event excess within the search region in the J/ψπ0 mode.

AB - I present preliminary results on the search for hc in its ηcγ and J/ψπ0 decay modes. We observe an excess of ηcγ events near 3526 MeV that has a probability P ∼ 0.001 to arise from background fluctations. The resonance parameters are M = 3525.8±0.2±0.2 MeV, Γ ≤ 1 MeV, and 10.6±3.7±3.4(br) < Γp̄pBηcγ < 12.8±4.8±4.5 (br) eV. We find no event excess within the search region in the J/ψπ0 mode.

UR - http://www.scopus.com/inward/record.url?scp=14244262309&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=14244262309&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysbps.2005.01.017

DO - 10.1016/j.nuclphysbps.2005.01.017

M3 - Article

AN - SCOPUS:14244262309

SN - 0920-5632

VL - 142

SP - 98

EP - 103

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

IS - 1-3 SPEC. ISS.

ER -

E835 at FNAL: Charmonium spectroscopy in p̄p annihilations

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