Dalitz Plot Analysis of the Decay $D^+ \to K^- \pi^+ \pi^+$ and the Study of the $K\pi$ Scalar Amplitudes

Aitala, E. M.

doi:10.1103/PhysRevLett.89.121801

Dalitz Plot Analysis of the Decay $$D^+ \to K^- \pi^+ \pi^+$$ and the Study of the $$K\pi$$ Scalar Amplitudes

Journal Article · Mon Apr 01 04:00:00 EST 2002 · Phys.Rev.Lett.

DOI:https://doi.org/10.1103/PhysRevLett.89.121801· OSTI ID:1892279

Aitala, E. M.

We study the Dalitz plot of the decay D^+ --> K^- pi^+ pi^+ with a sample of 15090 events from Fermilab experiment E791. Modeling the decay amplitude as the coherent sum of known K pi resonances and a uniform nonresonant term, we do not obtain an acceptable fit. If we allow the mass and width of the K^*_0(1430) to float, we obtain values consistent with those from PDG but the chi^2 per degree of freedom of the fit is still unsatisfactory. A good fit is found when we allow for the presence of an additional scalar resonance, with mass 797 +/- 19 +/- 43 MeV/c^2 and width 410 +/- 43 +/- 87 MeV/c^2. The mass and width of the K^*_0(1430) become 1459 +/- 7 +/- 5 MeV/c^2 and 175 +/- 12 +/- 12 MeV/c^2, respectively. Our results provide new information on the scalar sector in hadron spectroscopy.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: E791

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1892279

Report Number(s):: FERMILAB-PUB-01-254-E; arXiv:hep-ex/0204018; oai:inspirehep.net:585322

Journal Information:: Phys.Rev.Lett., Journal Name: Phys.Rev.Lett. Vol. 89

Country of Publication:: United States

Language:: English

References (25)

A study of K−π+ scattering in the reaction K−p→K−π+n at 11 GeV/c Aston, D.; Awaji, N.; Bienz, T. Nuclear Physics B, Vol. 296, Issue 3 https://doi.org/10.1016/0550-3213(88)90028-4	journal	January 1988
Phenomenological analysis of nonresonant charm meson decays Bediaga, I.; Göbel, C.; Méndez-Galain, R. Physical Review D, Vol. 56, Issue 7 https://doi.org/10.1103/PhysRevD.56.4268	journal	October 1997
There is no Cherry, S. N.; Pennington, M. R. Nuclear Physics A, Vol. 688, Issue 3-4 https://doi.org/10.1016/S0375-9474(00)00587-X	journal	June 2001
Dyanmical Generation of Linear σ Model Su(3) Lagrangian and Meson Nonet Mixing Delbourgo, R.; Scadron, M. D. International Journal of Modern Physics A, Vol. 13, Issue 04 https://doi.org/10.1142/S0217751X98000299	journal	February 1998
Modified Breit–Wigner formula for mesonic resonances describing OZI decays of confined $q\bar{q}$ states and the light scalar mesons van Beveren, E.; Rupp, G. The European Physical Journal C, Vol. 22, Issue 3 https://doi.org/10.1007/s100520100823	journal	December 2001
On the Dalitz Plot Approach in Nonleptonic Charm Meson Decays Bediaga, I.; Göbel, C.; Méndez–Galain, R. Physical Review Letters, Vol. 78, Issue 1 https://doi.org/10.1103/PhysRevLett.78.22	journal	January 1997
Possible Classification of the Chiral Scalar σ-Nonet Ishida, Muneyuki Progress of Theoretical Physics, Vol. 101, Issue 3 https://doi.org/10.1143/PTP.101.661	journal	March 1999
Analysis of three D → Kππ Dalitz plots Frabetti, P. L.; Cheung, H. W. K.; Cumalat, J. P. Physics Letters B, Vol. 331, Issue 1-2 https://doi.org/10.1016/0370-2693(94)90966-0	journal	June 1994
Hadroproduction of Charm Particles Appel, J. A. Annual Review of Nuclear and Particle Science, Vol. 42, Issue 1 https://doi.org/10.1146/annurev.ns.42.120192.002055	journal	December 1992
Understanding the scalar meson $$q\bar q$$ nonet Törnqvist, Nils A. Zeitschrift für Physik C Particles and Fields, Vol. 68, Issue 4 https://doi.org/10.1007/BF01565264	journal	December 1995
Dalitz analysis of the decay D 0 → K − π + π 0 Kopp, S.; Kostin, M.; Mahmood, A. H. Physical Review D, Vol. 63, Issue 9 https://doi.org/10.1103/PhysRevD.63.092001	journal	April 2001
The E791 parallel architecture data acquisition system Amato, S.; de Mello Neto, J. R. T.; de Miranda, J. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 324, Issue 3 https://doi.org/10.1016/0168-9002(93)91057-T	journal	January 1993
A low lying scalar meson nonet in a unitarized meson model Beveren, E.; Rijken, T. A.; Metzger, K. Zeitschrift für Physik C Particles and Fields, Vol. 30, Issue 4 https://doi.org/10.1007/BF01571811	journal	December 1986
Meson-meson interactions in a nonperturbative chiral approach Oller, J. A.; Oset, E.; Peláez, J. R. Physical Review D, Vol. 59, Issue 7 https://doi.org/10.1103/PhysRevD.59.074001	journal	February 1999
S-wave scattering in chiral perturbation theory with resonances Jamin, Matthias; Oller, José Antonio; Pich, Antonio Nuclear Physics B, Vol. 587, Issue 1-3 https://doi.org/10.1016/S0550-3213(00)00479-X	journal	October 2000
Hadronic structure in the decay τ − → ν τ π − π 0 π 0 and the sign of the tau neutrino helicity Asner, D. M.; Eppich, A.; Gronberg, J. Physical Review D, Vol. 61, Issue 1 https://doi.org/10.1103/PhysRevD.61.012002	journal	December 1999
Intrinsic and dynamically generated scalar meson states Shakin, C. M.; Wang, Huangsheng Physical Review D, Vol. 63, Issue 1 https://doi.org/10.1103/PhysRevD.63.014019	journal	December 2000
Performance of the Cherenkov counters in the fermilab tagged photon spectrometer facility Bartlett, David; Bhadra, Sampa; Cremaldi, Lucien Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 260, Issue 1 https://doi.org/10.1016/0168-9002(87)90387-1	journal	October 1987
A partial wave analysis of the decay D0 → KS0π+π− Albrecht, H.; Ehrlichmann, H.; Hamacher, T. Physics Letters B, Vol. 308, Issue 3-4 https://doi.org/10.1016/0370-2693(93)91309-B	journal	July 1993
N / D description of two meson amplitudes and chiral symmetry Oller, J. A.; Oset, E. Physical Review D, Vol. 60, Issue 7 https://doi.org/10.1103/PhysRevD.60.074023	journal	September 1999
K-matrix analysis of the Kπ S-wave in the mass region 900–2100 MeV and nonet classification of scalar qq̄-states Anisovich, A. V.; Sarantsev, A. V. Physics Letters B, Vol. 413, Issue 1-2 https://doi.org/10.1016/S0370-2693(97)01089-7	journal	November 1997
Experimental Evidence for a Light and Broad Scalar Resonance in D + → π − π + π + Decay Aitala, E. M.; Amato, S.; Anjos, J. C. Physical Review Letters, Vol. 86, Issue 5 https://doi.org/10.1103/PhysRevLett.86.770	journal	January 2001
Analysis of a K -Scattering Phase Shift and Evidence for the (900) Meson Ishida, S.; Ishida, M.; Ishida, T. Progress of Theoretical Physics, Vol. 98, Issue 3 https://doi.org/10.1143/PTP.98.621	journal	September 1997
Dalitz plot analysis of D → K π π decays Anjos, J. C.; Appel, J. A.; Bean, A. Physical Review D, Vol. 48, Issue 1 https://doi.org/10.1103/PhysRevD.48.56	journal	July 1993
Evidence for a scalar κ(900) resonance in π K scattering Black, Deirdre; Fariborz, Amir H.; Sannino, Francesco Physical Review D, Vol. 58, Issue 5 https://doi.org/10.1103/PhysRevD.58.054012	journal	August 1998

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