φ and ω meson production in pp reactions at p lab =3.67 GeV/c

F. Balestra, Y. Bedfer, R. Bertini, L. C. Bland, A. Brenschede, F. Brochard, M. P. Bussa, Seonho Choi, M. Debowski, R. Dressler, Mario Dzemidzic, J. Cl Faivre, I. V. Falomkin, L. Fava, L. Ferrero, J. Foryciarz, I. Fröhlich, V. Frolov, R. Garfagnini, A. GrassoE. Grosse, S. Heinz, V. V. Ivanov, W. W. Jacobs, W. Kühn, A. Maggiora, M. Maggiora, A. Manara, D. Panzieri, H. W. Pfaff, G. Piragino, G. B. Pontecorvo, A. Popov, J. Ritman, P. Salabura, V. Tchalyshev, F. Tosello, S. E. Vigdor, G. Zosi

Research output: Contribution to journalArticle

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Abstract

The exclusive production cross sections for ω and φ mesons have been measured in proton-proton reactions at p lab =3.67 GeV/c. The observed φ/ω cross section ratio is (3.8±0.2 +1.2 -0.9 )× 10 -3 . After phase space corrections, this ratio is enhanced by about an order of magnitude relative to naive predictions based upon the Okubo-Zweig-Iizuka (OZI) rule, in comparison to an enhancement by a factor ∼3 previously observed at higher beam momenta. The modest increase of this enhancement near the production threshold is compared to the much larger increase of the φ/ω ratio observed in specific channels of p̄p annihilation experiments. Furthermore, differential cross section results are also presented which indicate that although the φ meson is predominantly produced from a 3 P 1 proton-proton entrance channel, other partial waves contribute significantly to the production mechanism at this beam momentum.

Original languageEnglish (US)
Article number024004
Pages (from-to)240041-2400415
Number of pages2160375
JournalPhysical Review C - Nuclear Physics
Volume63
Issue number2
StatePublished - Jan 1 2001

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mesons
proton-proton reactions
cross sections
momentum
protons
augmentation
entrances
thresholds
predictions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Balestra, F., Bedfer, Y., Bertini, R., Bland, L. C., Brenschede, A., Brochard, F., ... Zosi, G. (2001). φ and ω meson production in pp reactions at p lab =3.67 GeV/c Physical Review C - Nuclear Physics, 63(2), 240041-2400415. [024004].

φ and ω meson production in pp reactions at p lab =3.67 GeV/c . / Balestra, F.; Bedfer, Y.; Bertini, R.; Bland, L. C.; Brenschede, A.; Brochard, F.; Bussa, M. P.; Choi, Seonho; Debowski, M.; Dressler, R.; Dzemidzic, Mario; Faivre, J. Cl; Falomkin, I. V.; Fava, L.; Ferrero, L.; Foryciarz, J.; Fröhlich, I.; Frolov, V.; Garfagnini, R.; Grasso, A.; Grosse, E.; Heinz, S.; Ivanov, V. V.; Jacobs, W. W.; Kühn, W.; Maggiora, A.; Maggiora, M.; Manara, A.; Panzieri, D.; Pfaff, H. W.; Piragino, G.; Pontecorvo, G. B.; Popov, A.; Ritman, J.; Salabura, P.; Tchalyshev, V.; Tosello, F.; Vigdor, S. E.; Zosi, G.

In: Physical Review C - Nuclear Physics, Vol. 63, No. 2, 024004, 01.01.2001, p. 240041-2400415.

Research output: Contribution to journalArticle

Balestra, F, Bedfer, Y, Bertini, R, Bland, LC, Brenschede, A, Brochard, F, Bussa, MP, Choi, S, Debowski, M, Dressler, R, Dzemidzic, M, Faivre, JC, Falomkin, IV, Fava, L, Ferrero, L, Foryciarz, J, Fröhlich, I, Frolov, V, Garfagnini, R, Grasso, A, Grosse, E, Heinz, S, Ivanov, VV, Jacobs, WW, Kühn, W, Maggiora, A, Maggiora, M, Manara, A, Panzieri, D, Pfaff, HW, Piragino, G, Pontecorvo, GB, Popov, A, Ritman, J, Salabura, P, Tchalyshev, V, Tosello, F, Vigdor, SE & Zosi, G 2001, ' φ and ω meson production in pp reactions at p lab =3.67 GeV/c ', Physical Review C - Nuclear Physics, vol. 63, no. 2, 024004, pp. 240041-2400415.
Balestra F, Bedfer Y, Bertini R, Bland LC, Brenschede A, Brochard F et al. φ and ω meson production in pp reactions at p lab =3.67 GeV/c Physical Review C - Nuclear Physics. 2001 Jan 1;63(2):240041-2400415. 024004.
Balestra, F. ; Bedfer, Y. ; Bertini, R. ; Bland, L. C. ; Brenschede, A. ; Brochard, F. ; Bussa, M. P. ; Choi, Seonho ; Debowski, M. ; Dressler, R. ; Dzemidzic, Mario ; Faivre, J. Cl ; Falomkin, I. V. ; Fava, L. ; Ferrero, L. ; Foryciarz, J. ; Fröhlich, I. ; Frolov, V. ; Garfagnini, R. ; Grasso, A. ; Grosse, E. ; Heinz, S. ; Ivanov, V. V. ; Jacobs, W. W. ; Kühn, W. ; Maggiora, A. ; Maggiora, M. ; Manara, A. ; Panzieri, D. ; Pfaff, H. W. ; Piragino, G. ; Pontecorvo, G. B. ; Popov, A. ; Ritman, J. ; Salabura, P. ; Tchalyshev, V. ; Tosello, F. ; Vigdor, S. E. ; Zosi, G. / φ and ω meson production in pp reactions at p lab =3.67 GeV/c In: Physical Review C - Nuclear Physics. 2001 ; Vol. 63, No. 2. pp. 240041-2400415.
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abstract = "The exclusive production cross sections for ω and φ mesons have been measured in proton-proton reactions at p lab =3.67 GeV/c. The observed φ/ω cross section ratio is (3.8±0.2 +1.2 -0.9 )× 10 -3 . After phase space corrections, this ratio is enhanced by about an order of magnitude relative to naive predictions based upon the Okubo-Zweig-Iizuka (OZI) rule, in comparison to an enhancement by a factor ∼3 previously observed at higher beam momenta. The modest increase of this enhancement near the production threshold is compared to the much larger increase of the φ/ω ratio observed in specific channels of p̄p annihilation experiments. Furthermore, differential cross section results are also presented which indicate that although the φ meson is predominantly produced from a 3 P 1 proton-proton entrance channel, other partial waves contribute significantly to the production mechanism at this beam momentum.",
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T1 - φ and ω meson production in pp reactions at p lab =3.67 GeV/c

AU - Balestra, F.

AU - Bedfer, Y.

AU - Bertini, R.

AU - Bland, L. C.

AU - Brenschede, A.

AU - Brochard, F.

AU - Bussa, M. P.

AU - Choi, Seonho

AU - Debowski, M.

AU - Dressler, R.

AU - Dzemidzic, Mario

AU - Faivre, J. Cl

AU - Falomkin, I. V.

AU - Fava, L.

AU - Ferrero, L.

AU - Foryciarz, J.

AU - Fröhlich, I.

AU - Frolov, V.

AU - Garfagnini, R.

AU - Grasso, A.

AU - Grosse, E.

AU - Heinz, S.

AU - Ivanov, V. V.

AU - Jacobs, W. W.

AU - Kühn, W.

AU - Maggiora, A.

AU - Maggiora, M.

AU - Manara, A.

AU - Panzieri, D.

AU - Pfaff, H. W.

AU - Piragino, G.

AU - Pontecorvo, G. B.

AU - Popov, A.

AU - Ritman, J.

AU - Salabura, P.

AU - Tchalyshev, V.

AU - Tosello, F.

AU - Vigdor, S. E.

AU - Zosi, G.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - The exclusive production cross sections for ω and φ mesons have been measured in proton-proton reactions at p lab =3.67 GeV/c. The observed φ/ω cross section ratio is (3.8±0.2 +1.2 -0.9 )× 10 -3 . After phase space corrections, this ratio is enhanced by about an order of magnitude relative to naive predictions based upon the Okubo-Zweig-Iizuka (OZI) rule, in comparison to an enhancement by a factor ∼3 previously observed at higher beam momenta. The modest increase of this enhancement near the production threshold is compared to the much larger increase of the φ/ω ratio observed in specific channels of p̄p annihilation experiments. Furthermore, differential cross section results are also presented which indicate that although the φ meson is predominantly produced from a 3 P 1 proton-proton entrance channel, other partial waves contribute significantly to the production mechanism at this beam momentum.

AB - The exclusive production cross sections for ω and φ mesons have been measured in proton-proton reactions at p lab =3.67 GeV/c. The observed φ/ω cross section ratio is (3.8±0.2 +1.2 -0.9 )× 10 -3 . After phase space corrections, this ratio is enhanced by about an order of magnitude relative to naive predictions based upon the Okubo-Zweig-Iizuka (OZI) rule, in comparison to an enhancement by a factor ∼3 previously observed at higher beam momenta. The modest increase of this enhancement near the production threshold is compared to the much larger increase of the φ/ω ratio observed in specific channels of p̄p annihilation experiments. Furthermore, differential cross section results are also presented which indicate that although the φ meson is predominantly produced from a 3 P 1 proton-proton entrance channel, other partial waves contribute significantly to the production mechanism at this beam momentum.

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