Production of phi and omega mesons in near-threshold pp reactions

F Balestra; Y Bedfer; R Bertini; LC Bland; A Brenschede; F Brochard; MP Bussa; V Chalyshev; SH Choi; M Debowski; M Dzemidzic; IV Falomkin; JC Faivre; Luciano FAVA; L Ferrero; J Foryciarz; V Frolov; R Garfagnini; D Gill; A Grasso; E Grosse; S Heinz; VV Ivanov; WW Jacobs; W Kuhn; A Maggiora; M Maggiora; A Manara; Daniele PANZIERI; HW Pfaff; G Piragino; GB Pontecorvo; A Popov; J Ritman; P Salabura; P Senger; J Stroth; F Tosello; SE Vigdor; G. Zosi

doi:10.1103/PhysRevLett.81.4572

Production of phi and omega mesons in near-threshold pp reactions

F Balestra
, Y Bedfer
, R Bertini
, LC Bland
, A Brenschede
, F Brochard
, MP Bussa
, V Chalyshev
, SH Choi
, M Debowski
, M Dzemidzic
, IV Falomkin
, JC Faivre
, Luciano FAVA
, L Ferrero
, J Foryciarz
, V Frolov
, R Garfagnini
, D Gill
, A Grasso

E Grosse, S Heinz, VV Ivanov, WW Jacobs, W Kuhn, A Maggiora, M Maggiora, A Manara, Daniele PANZIERI, HW Pfaff, G Piragino, GB Pontecorvo, A Popov, J Ritman, P Salabura, P Senger, J Stroth, F Tosello, SE Vigdor, G. Zosi

Department of Science and Technological Innovation

Research output: Contribution to journal › Article

Abstract

The ratio of the exclusive production cross sections for φ and ω mesons has been measured in ppreactions at T_beam = 2.85 GeV. The observed φ/ω ratio is (3.7 ±0.7^+1.2_−0.9) × 10⁻³. After phase space corrections, this ratio is about a factor of 10 enhanced relative to naive predictions based upon the Okubo-Zweig-Iizuka rule, in comparison to an enhancement by a factor of ∼3 previously observed at higher energies. 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 p®p annihilation experiments.

Original language	English
Pages (from-to)	4572-4575
Number of pages	4
Journal	Physical Review Letters
Volume	81
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.81.4572
Publication status	Published - 1 Jan 1998

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10.1103/PhysRevLett.81.4572

http://hdl.handle.net/11579/34694

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Balestra, F., Bedfer, Y., Bertini, R., Bland, LC., Brenschede, A., Brochard, F., Bussa, MP., Chalyshev, V., Choi, SH., Debowski, M., Dzemidzic, M., Falomkin, IV., Faivre, JC., FAVA, L., Ferrero, L., Foryciarz, J., Frolov, V., Garfagnini, R., Gill, D., ... Zosi, G. (1998). Production of phi and omega mesons in near-threshold pp reactions. Physical Review Letters, 81(21), 4572-4575. https://doi.org/10.1103/PhysRevLett.81.4572

@article{4722a0096f8446fe9d2d0d711744e1b4,

title = "Production of phi and omega mesons in near-threshold pp reactions",

abstract = "The ratio of the exclusive production cross sections for φ and ω mesons has been measured in ppreactions at Tbeam = 2.85 GeV. The observed φ/ω ratio is (3.7 ±0.7+1.2−0.9) × 10−3. After phase space corrections, this ratio is about a factor of 10 enhanced relative to naive predictions based upon the Okubo-Zweig-Iizuka rule, in comparison to an enhancement by a factor of ∼3 previously observed at higher energies. 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 p{\textregistered}p annihilation experiments.",

author = "F Balestra and Y Bedfer and R Bertini and LC Bland and A Brenschede and F Brochard and MP Bussa and V Chalyshev and SH Choi and M Debowski and M Dzemidzic and IV Falomkin and JC Faivre and Luciano FAVA and L Ferrero and J Foryciarz and V Frolov and R Garfagnini and D Gill and A Grasso and E Grosse and S Heinz and VV Ivanov and WW Jacobs and W Kuhn and A Maggiora and M Maggiora and A Manara and Daniele PANZIERI and HW Pfaff and G Piragino and GB Pontecorvo and A Popov and J Ritman and P Salabura and P Senger and J Stroth and F Tosello and SE Vigdor and G. Zosi",

year = "1998",

month = jan,

day = "1",

doi = "10.1103/PhysRevLett.81.4572",

language = "English",

volume = "81",

pages = "4572--4575",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "21",

}

Balestra, F, Bedfer, Y, Bertini, R, Bland, LC, Brenschede, A, Brochard, F, Bussa, MP, Chalyshev, V, Choi, SH, Debowski, M, Dzemidzic, M, Falomkin, IV, Faivre, JC, FAVA, L, Ferrero, L, Foryciarz, J, Frolov, V, Garfagnini, R, Gill, D, Grasso, A, Grosse, E, Heinz, S, Ivanov, VV, Jacobs, WW, Kuhn, W, Maggiora, A, Maggiora, M, Manara, A, PANZIERI, D, Pfaff, HW, Piragino, G, Pontecorvo, GB, Popov, A, Ritman, J, Salabura, P, Senger, P, Stroth, J, Tosello, F, Vigdor, SE & Zosi, G 1998, 'Production of phi and omega mesons in near-threshold pp reactions', Physical Review Letters, vol. 81, no. 21, pp. 4572-4575. https://doi.org/10.1103/PhysRevLett.81.4572

TY - JOUR

T1 - Production of phi and omega mesons in near-threshold pp reactions

AU - Balestra, F

AU - Bedfer, Y

AU - Bertini, R

AU - Bland, LC

AU - Brenschede, A

AU - Brochard, F

AU - Bussa, MP

AU - Chalyshev, V

AU - Choi, SH

AU - Debowski, M

AU - Dzemidzic, M

AU - Falomkin, IV

AU - Faivre, JC

AU - FAVA, Luciano

AU - Ferrero, L

AU - Foryciarz, J

AU - Frolov, V

AU - Garfagnini, R

AU - Gill, D

AU - Grasso, A

AU - Grosse, E

AU - Heinz, S

AU - Ivanov, VV

AU - Jacobs, WW

AU - Kuhn, W

AU - Maggiora, A

AU - Maggiora, M

AU - Manara, A

AU - PANZIERI, Daniele

AU - Pfaff, HW

AU - Piragino, G

AU - Pontecorvo, GB

AU - Popov, A

AU - Ritman, J

AU - Salabura, P

AU - Senger, P

AU - Stroth, J

AU - Tosello, F

AU - Vigdor, SE

AU - Zosi, G.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - The ratio of the exclusive production cross sections for φ and ω mesons has been measured in ppreactions at Tbeam = 2.85 GeV. The observed φ/ω ratio is (3.7 ±0.7+1.2−0.9) × 10−3. After phase space corrections, this ratio is about a factor of 10 enhanced relative to naive predictions based upon the Okubo-Zweig-Iizuka rule, in comparison to an enhancement by a factor of ∼3 previously observed at higher energies. 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 p®p annihilation experiments.

AB - The ratio of the exclusive production cross sections for φ and ω mesons has been measured in ppreactions at Tbeam = 2.85 GeV. The observed φ/ω ratio is (3.7 ±0.7+1.2−0.9) × 10−3. After phase space corrections, this ratio is about a factor of 10 enhanced relative to naive predictions based upon the Okubo-Zweig-Iizuka rule, in comparison to an enhancement by a factor of ∼3 previously observed at higher energies. 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 p®p annihilation experiments.

UR - https://iris.uniupo.it/handle/11579/34694

U2 - 10.1103/PhysRevLett.81.4572

DO - 10.1103/PhysRevLett.81.4572

M3 - Article

SN - 0031-9007

VL - 81

SP - 4572

EP - 4575

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

ER -

Production of phi and omega mesons in near-threshold pp reactions

Abstract

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