Experimental results on the annihilation p → Kπ at rest; K∗ production

Armenteros, R.; Edwards, David; Jacobsen, T.; Montanet, L.; Vandermeulen, J.; D'Andlau, Ch.; Astier, A.; Baillon, P.; Cohen-Ganouna, J.; Defoix, C.; Siaud, J.; Rivet, P.

doi:10.1016/0031-9163(65)90286-6

Cited by 31 publications

(6 citation statements)

References 3 publications

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“…(15) becomes (l+2/) 2 +2.79(l~2/) 2 -0.56=4.53 tan 2 6>. (16) Thus, finally, after the aforementioned assumptions and simplifications, we get a sum rule connecting the / parameter and the mixing angle 6. In Table I, we sum up the various fits to the above expression.…”

Section: Zk K *> a (0)j~ Ik K *> A (0)jmentioning

confidence: 96%

Current Algebra andω−φMixing Parameter

Gupta

1966

Phys. Rev.

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Section: Zk K *> a (0)j~ Ik K *> A (0)jmentioning

confidence: 96%

Current Algebra andω−φMixing Parameter

Gupta

1966

Phys. Rev.

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“…The structure in fig.1 between 1.2 and 1.5 GeV centered around 1. 35 GeV is too large to be associated to the f0(1500), which has a width of the order of 100 MeV, and is expected at 1.5 GeV. The statistics is too low to extract meaningfully a ratio between the f0(1370) and the f0(1500) contributions.…”

Section: Introductionmentioning

confidence: 94%

“…Destructive interference of the f0(1500) amplitude with the f0(1370) amplitude generates the deep narrow flat valley at M(KsKs)=1.5 GeV in the π 0 KsKs Dalitz plot and in the KsKs mass plot obtained [30] using CERN [35,36] and BNL [37] bubble chamber data (see the bottom left and right plates in fig. 5).…”

Section: F0(1370) From Kk͞ and 4 Pion Decays In P͞ Annihilations At Restmentioning

confidence: 99%

Decays of the f₀(1370) scalar glueball candidate in pp Central Exclusive Production (CEP) and in antiproton annihilations at rest

Gastaldi

2018

EPJ Web Conf.

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Decays into π + πof the f0(1370) are the main source of an isolated structure localized between 1.2 and 1.5 GeV in the π + πmass spectrum measured in pp Central Exclusive Production (CEP) at √ =200 GeV at very low four momentum transfer ltl by the STAR experiment. These data confirm in the π + πdecay channel the existence of the f0(1370) as an isolated well identified structure previously observed in K + K -, KsKs, π + ππ + π -, 2π 0 π + πand 4π 0 decays measured in pbar annihilations at rest. The ensemble of these data point at a high gg content of the f0(1370). CEP interactions at higher energies favour production of 0 ++ and 2 ++ mesons. Selection of events with lower ltl at both proton vertices suppresses 2 ++ structures. LHC runs dedicated to pp CEP measurements at low ltl could then provide a unique source of all the low energy scalars. This would make it clear if and where scalar gluonium is resident and the nature (composition in terms of qqbar, qqqbarqbar, qqbar-qqbar and gg) of f0(500), f0(980), f0(1370), f0(1500) and f0(1710).

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“…Destructive interference of the f0(1500) amplitude with the f0(1370) amplitude generates the deep narrow flat valley at M(KsKs)=1.5 GeV in the π 0 KsKs Dalitz plot and in the KsKs mass plot obtained [43] using CERN [44,45] and BNL [46] bubble chamber data (see the bottom left and right plates in fig. 2).…”

Section: Direct Evidences Of the Existence Of The F0(1370)mentioning

confidence: 99%

“…PxDBR f0(1370)→2π 0 35 10 -4 [60] 6.4 10 -4 [61] PxDBR f0(1500)→2π 0 13 10 -4 [60] 8.2 10 -4 [61] π 0 π + πchannel frequency (536 ± 37) 10 -4 [62,42] PxDBR f0(1370)→ π + π -19 10 -4 [42] PxDBR f0(1500)→ π + π -23 10 -4 [42] K + Kπ 0 channel frequency (23.7 ± 0.2) 10 -4 [40][41][42] PxDBR f0(1370)→ K + K -6.5 10 -4 [41] 14 10 -4 [42] PxDBR f0(1500)→ K + K -0.5 10 -4 [41] 4 10 -4 [42] π 0 KsKs channel frequency (7.5 ± 0.3) 10 -4 [44][45][46].…”

Section: Direct Evidences Of the Existence Of The F0(1370)mentioning

confidence: 99%

Decays of the f0(1370) scalar glueball candidate

Gastaldi

2018

Nuclear and Particle Physics Proceedings

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For a long time doubts have existed on the existence of the f0(1370) meson as an individual object distinct and separated from the σ meson. Decays into π+πof the f0(1370) are the main source of an isolated structure localized between 1.2 and 1.5 GeV in the π+πmass spectrum measured in pp Central Exclusive Production (CEP) at √ =200 GeV at very low four momentum transfer squared ltl. These data confirm in the π+πdecay channel the existence of the f0(1370) as an isolated well identified structure that was previously observed in K + K -, KsKs, 4π 0 , 2π 0 π + πand π + ππ + πdecays measured in pbar annihilations at rest. The decay branching ratios of f0(1370) into σσ, ρρ, ππ, KKbar, ƞƞ relative to ππ decays obtained in analysis of data of pbar annihilations at rest which treat separately f0(1370) and σ are respectively 5.6, 3, 1, 1, 0.02. The decay and production properties of f0(1370) point to a large gg content. CEP interactions at very high energies favour production of 0 ++ and 2 ++ mesons. Selection of events with low ltl at both proton vertices suppresses 2 ++ structures. LHC runs dedicated to pp CEP measurements at low ltl could then provide a unique clean source of all the low energy scalars, cross check the pbar annihilation results and make it clear if and where scalar gluonium is resident and the nature (composition in terms of qqbar, qqqbarqbar, qqbar-qqbar and gg) of f0(500), f0(980), f0(1370), f0(1500) and f0(1710).

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Experimental results on the annihilation p → Kπ at rest; K∗ production

Cited by 31 publications

References 3 publications

Current Algebra andω−φMixing Parameter

Current Algebra andω−φMixing Parameter

Decays of the f₀(1370) scalar glueball candidate in pp Central Exclusive Production (CEP) and in antiproton annihilations at rest

Decays of the f0(1370) scalar glueball candidate

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Experimental results on the annihilation p → Kπ at rest; K∗ production

Cited by 31 publications

References 3 publications

Current Algebra andω−φMixing Parameter

Current Algebra andω−φMixing Parameter

Decays of the f0(1370) scalar glueball candidate in pp Central Exclusive Production (CEP) and in antiproton annihilations at rest

Decays of the f0(1370) scalar glueball candidate

Contact Info

Product

Resources

About

Decays of the f₀(1370) scalar glueball candidate in pp Central Exclusive Production (CEP) and in antiproton annihilations at rest