Measurement of the D+ and D+ decays into K+K−K+

Link, J. M.; Reyes, M.; Yager, P. M.; Anjos, J. C.; Bediaga, I.; Göbel, C.; Magnin, J.; Massafferri, A.; Miranda, J. M. De; Pepe, I. M.; Reis, A. C. dos; Carrillo, S.; Casimiro, E.; Cuautle, E.; Sánchez-Hernández, A.; Uribe, C.; Vázquez, F.; Agostino, L.; Cinquini, L.; Cumalat, J. P.; O’Reilly, B.; Vargas, J. E. Ramirez; Segoni, I.; Butler, J. N.; Cheung, H. W. K.; Chiodini, G.; Gaines, I.; Garbincius, P. H.; Garren, L.; Gottschalk, E.; Kasper, P.; Kreymer, A.; Kutschke, R.; Benussi, L.; Bianco, S.; Fabbri, F.; Zallo, A.; Cawlfield, C.; Kim, D.Y; Park, K.S; Rahimi, A. M.; Wiss, J.; Gardner, R.; Kryemadhi, A.; Chang, Kang‐Tsung; Chung, Y. S.; Kang, J. S.; Ko, B. R.; Kwak, J. W.; Lee, K.B; Cho, K; Park, H; Alimonti, G.; Barberis, S.; Cerutti, Agustín Cobos; Boschini, M.; D’Angelo, P.; DiCorato, M.; Dini, P.; Edera, L.; Erba, S.; Giammarchi, M.; Inzani, P.; Leveraro, F.; Malvezzi, S.; Menasce, D.; Mezzadri, M.; Moroni, L.; Pedrini, D.; Pontoglio, C.; Prelz, F.; Rovere, M.; Sala, S.; Davenport, T. F.; Arena, Vincenzo; Boca, G.; Bonomi, G.; Gianini, G.; Liguori, G.; Merlo, M. M.; Pantea, D.; Ratti, S. P.; Riccardi, C.; Vitulo, P.; Hernandez, H.; López, A.; Méndez, H.; Paris, A.; Quinones, J.; Xiong, W.; Zhang, Y; Wilson, J. R.; Handler, T.; Mitchell, R. E.; Engh, D.; Hosack, M.; Johns, W.; Nehring, M.; Sheldon, P.; Stenson, K.; Vaandering, Eric Wayne; Webster, M.; Sheaff, M.

doi:10.1016/s0370-2693(02)02240-2

Cited by 12 publications

(9 citation statements)

References 15 publications

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“…The production of the resonance f 0 (1370) in hadronic decays of charmed mesons has been observed in the decay D 0 → K 0 π + π − → f 0 (1370)K 0 by ARGUS [17], E687 [18] and CLEO [19] [20] and in D + → π + π − π + → f 0 (1370)π + by E791 [21], respectively, with the results…”

Section: Quark Content Of F 0 (1370)mentioning

confidence: 58%

Remarks on the quark content of the scalar mesonf0(1370)

Cheng

2003

Phys. Rev. D

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Based on the measurements of (D + s , D + ) → f 0 (1370)π + we determine, in a model independent way, the allowed ss content in the scalar meson f 0 (1370). We find that, on the one hand, if this isoscalar resonance is a pure nn state [ nn ≡ (uū + dd)/ √ 2 ], a very large W -annihilation term will be needed to accommodate D + s → f 0 (1370)π + . On the other hand, the ss component of f 0 (1370) should be small enough to avoid excessive D + s → f 0 (1370)π + induced from the external W -emission. Measurement of f 0 (1370) production in the decay D + s → K + K − π + will be useful to test the above picture. For the decay D 0 → f 0 (1370)K 0 which is kinematically barely or even not allowed, depending on the mass of f 0 (1370), we find that the finite width effect of f 0 (1370) plays a crucial role on the resonant three-body decay D 0 → f 0 (1370)K 0 → π + π − K 0 .

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Section: Quark Content Of F 0 (1370)mentioning

confidence: 58%

Remarks on the quark content of the scalar mesonf0(1370)

Cheng

2003

Phys. Rev. D

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“…The Cabibbo doubly suppressed mode D + → K + K + K − has been recently observed by FOCUS [11]. The Cabibbo-allowed D 0 → a + 0 K − and doubly Cabibbo-suppressed mode D 0 → a − 0 K + have been extracted from the three-body decay…”

Section: Experimental Statusmentioning

confidence: 91%

“…1370)π + which have been measured by ARGUS [17], E687 [16] and CLEO [10], by FOCUS [11] and by E791 [9], respectively, with the results…”

Section: Decaymentioning

confidence: 95%

“…We are interested in D → SP (S: scalar meson, P : pseudoscalar meson) decays extracted from the three-body decays of charmed mesons. Some recent results (many being preliminary) are available from E791 [9], CLEO [10], FOCUS [11] and BaBar [12]. The 0 + scalar mesons that have been studied in charm decays are σ(500) [or f 0 (600)], f 0 (980), f 0 (1370), a 0 (980), a 0 (1450), κ and K * 0 (1430).…”

Section: Experimental Statusmentioning

confidence: 99%

“…This implies that the decay rate of D + → f 0 K + inferred from FOCUS [11] is probably too large by a factor of 4. Indeed, since this mode is Cabibbo doubly suppressed, it is unlikely that its branching ratio is of the same order as the Cabibbo singly suppressed one D + → f 0 π + .…”

Section: Decaymentioning

confidence: 99%

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HadronicDdecays involving scalar mesons

Cheng

2003

Phys. Rev. D

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The nonleptonic weak decays of charmed mesons into a scalar meson and a pseudoscalar meson are studied. The scalar mesons under consideration are σ [or f 0 (600)], κ, f 0 (980), a 0 (980) and K * 0 (1430). A consistent picture provided by the data suggests that the light scalars below or near 1 GeV form an SU(3) flavor nonet and are predominately the q 2q2 states, while the scalar mesons above 1 GeV can be described as a qq nonet. Hence, we designate q 2q2 to σ, κ, a 0 (980), f 0 (980) and qq to K * 0 . Sizable weak annihilation contributions induced from final-state interactions are essential for understanding the data. Except for the Cabibbo doubly suppressed channel D + → f 0 K + , the data of D → σπ, f 0 π, f 0 K, K * 0 π can be accommodated in the generalized factorization approach. However, the predicted rates for D → a 0 π, a 0 K are too small by one to two orders of magnitude when compared with the preliminary measurements. Whether or not one can differentiate between the two-quark and four-quark pictures for the f 0 (980) produced in the hadronic charm decays depends on the isoscalar f 0 −σ mixing angle in the qq model.

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