Dalitz Plot Analysis of the Decay [Formula presented] and Indication of a Low-Mass Scalar [Formula presented] Resonance

E. M. Aitala; S. Amato; J. C. Anjos; J. A. Appel; D. Ashery; S. Banerjee; I. Bediaga; G. Blaylock; S. B. Bracker; P. R. Burchat; R. A. Burnstein; T. Carter; H. S. Carvalho; N. K. Copty; L. M. Cremaldi; C. Darling; K. Denisenko; S. Devmal; A. Fernandez; G. F. Fox; P. Gagnon; C. Göbel; K. Gounder; A. M. Halling; G. Herrera; G. Hurvits; C. James; P. A. Kasper; S. Kwan; D. C. Langs; J. Leslie; B. Lundberg; J. Magnin; A. Massafferri; S. MayTal-Beck; B. Meadows; J. R.T. de Mello Neto; D. Mihalcea; R. H. Milburn; J. M. de Miranda; A. Napier; A. Nguyen; A. B. d’Oliveira; K. O’Shaughnessy; K. C. Peng; L. P. Perera; M. V. Purohit; B. Quinn; S. Radeztsky; A. Rafatian; N. W. Reay; J. J. Reidy; A. C. dos Reis; H. A. Rubin; D. A. Sanders; A. K.S. Santha; A. F.S. Santoro; A. J. Schwartz; M. Sheaff; R. A. Sidwell; A. J. Slaughter; M. D. Sokoloff; C. J.Solano Salinas; N. R. Stanton; R. J. Stefanski; K. Stenson; D. J. Summers; S. Takach; K. Thorne; A. K. Tripathi; S. Watanabe; R. Weiss-Babai; J. Wiener; N. Witchey; E. Wolin; S. M. Yang; D. Yi; S. Yoshida; R. Zaliznyak; C. Zhang

doi:10.1103/PhysRevLett.89.121801

Dalitz Plot Analysis of the Decay [Formula presented] and Indication of a Low-Mass Scalar [Formula presented] Resonance

E. M. Aitala, S. Amato, J. C. Anjos, J. A. Appel, D. Ashery, S. Banerjee, I. Bediaga, G. Blaylock, S. B. Bracker, P. R. Burchat, R. A. Burnstein, T. Carter, H. S. Carvalho, N. K. Copty, L. M. Cremaldi, C. Darling, K. Denisenko, S. Devmal, A. Fernandez, G. F. FoxP. Gagnon, C. Göbel, K. Gounder, A. M. Halling, G. Herrera, G. Hurvits, C. James, P. A. Kasper, S. Kwan, D. C. Langs, J. Leslie, B. Lundberg, J. Magnin, A. Massafferri, S. MayTal-Beck, B. Meadows, J. R.T. de Mello Neto, D. Mihalcea, R. H. Milburn, J. M. de Miranda, A. Napier, A. Nguyen, A. B. d’Oliveira, K. O’Shaughnessy, K. C. Peng, L. P. Perera, M. V. Purohit, B. Quinn, S. Radeztsky, A. Rafatian, N. W. Reay, J. J. Reidy, A. C. dos Reis, H. A. Rubin, D. A. Sanders, A. K.S. Santha, A. F.S. Santoro, A. J. Schwartz, M. Sheaff, R. A. Sidwell, A. J. Slaughter, M. D. Sokoloff, C. J.Solano Salinas, N. R. Stanton, R. J. Stefanski, K. Stenson, D. J. Summers, S. Takach, K. Thorne, A. K. Tripathi, S. Watanabe, R. Weiss-Babai, J. Wiener, N. Witchey, E. Wolin, S. M. Yang, D. Yi, S. Yoshida, R. Zaliznyak, C. Zhang

School of Physics and Astronomy

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Abstract

We study the Dalitz plot of the decay [Formula presented] with a sample of 15090 events from Fermilab experiment E791. Modeling the decay amplitude as the coherent sum of known [Formula presented] resonances and a uniform nonresonant term, we do not obtain an acceptable fit. If we allow the mass and width of the [Formula presented] to float, we obtain values consistent with those from PDG but the [Formula presented] 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 [Formula presented] and width [Formula presented]. The mass and width of the [Formula presented] become [Formula presented] and [Formula presented], respectively. Our results provide new information on the scalar sector in hadron spectroscopy.

Original language	English
Journal	Physical Review Letters
Volume	89
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.89.121801
State	Published - 2002

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10.1103/PhysRevLett.89.121801

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Aitala, E. M., Amato, S., Anjos, J. C., Appel, J. A., Ashery, D., Banerjee, S., Bediaga, I., Blaylock, G., Bracker, S. B., Burchat, P. R., Burnstein, R. A., Carter, T., Carvalho, H. S., Copty, N. K., Cremaldi, L. M., Darling, C., Denisenko, K., Devmal, S., Fernandez, A., ... Zhang, C. (2002). Dalitz Plot Analysis of the Decay [Formula presented] and Indication of a Low-Mass Scalar [Formula presented] Resonance. Physical Review Letters, 89(12). https://doi.org/10.1103/PhysRevLett.89.121801

@article{3acadfb9ac0d4e5890e2df7fe068cfe4,

title = "Dalitz Plot Analysis of the Decay [Formula presented] and Indication of a Low-Mass Scalar [Formula presented] Resonance",

abstract = "We study the Dalitz plot of the decay [Formula presented] with a sample of 15090 events from Fermilab experiment E791. Modeling the decay amplitude as the coherent sum of known [Formula presented] resonances and a uniform nonresonant term, we do not obtain an acceptable fit. If we allow the mass and width of the [Formula presented] to float, we obtain values consistent with those from PDG but the [Formula presented] 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 [Formula presented] and width [Formula presented]. The mass and width of the [Formula presented] become [Formula presented] and [Formula presented], respectively. Our results provide new information on the scalar sector in hadron spectroscopy.",

author = "Aitala, {E. M.} and S. Amato and Anjos, {J. C.} and Appel, {J. A.} and D. Ashery and S. Banerjee and I. Bediaga and G. Blaylock and Bracker, {S. B.} and Burchat, {P. R.} and Burnstein, {R. A.} and T. Carter and Carvalho, {H. S.} and Copty, {N. K.} and Cremaldi, {L. M.} and C. Darling and K. Denisenko and S. Devmal and A. Fernandez and Fox, {G. F.} and P. Gagnon and C. G{\"o}bel and K. Gounder and Halling, {A. M.} and G. Herrera and G. Hurvits and C. James and Kasper, {P. A.} and S. Kwan and Langs, {D. C.} and J. Leslie and B. Lundberg and J. Magnin and A. Massafferri and S. MayTal-Beck and B. Meadows and {de Mello Neto}, {J. R.T.} and D. Mihalcea and Milburn, {R. H.} and {de Miranda}, {J. M.} and A. Napier and A. Nguyen and d{\textquoteright}Oliveira, {A. B.} and K. O{\textquoteright}Shaughnessy and Peng, {K. C.} and Perera, {L. P.} and Purohit, {M. V.} and B. Quinn and S. Radeztsky and A. Rafatian and Reay, {N. W.} and Reidy, {J. J.} and {dos Reis}, {A. C.} and Rubin, {H. A.} and Sanders, {D. A.} and Santha, {A. K.S.} and Santoro, {A. F.S.} and Schwartz, {A. J.} and M. Sheaff and Sidwell, {R. A.} and Slaughter, {A. J.} and Sokoloff, {M. D.} and Salinas, {C. J.Solano} and Stanton, {N. R.} and Stefanski, {R. J.} and K. Stenson and Summers, {D. J.} and S. Takach and K. Thorne and Tripathi, {A. K.} and S. Watanabe and R. Weiss-Babai and J. Wiener and N. Witchey and E. Wolin and Yang, {S. M.} and D. Yi and S. Yoshida and R. Zaliznyak and C. Zhang",

year = "2002",

doi = "10.1103/PhysRevLett.89.121801",

language = "אנגלית",

volume = "89",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

}

Aitala, EM, Amato, S, Anjos, JC, Appel, JA, Ashery, D, Banerjee, S, Bediaga, I, Blaylock, G, Bracker, SB, Burchat, PR, Burnstein, RA, Carter, T, Carvalho, HS, Copty, NK, Cremaldi, LM, Darling, C, Denisenko, K, Devmal, S, Fernandez, A, Fox, GF, Gagnon, P, Göbel, C, Gounder, K, Halling, AM, Herrera, G, Hurvits, G, James, C, Kasper, PA, Kwan, S, Langs, DC, Leslie, J, Lundberg, B, Magnin, J, Massafferri, A, MayTal-Beck, S, Meadows, B, de Mello Neto, JRT, Mihalcea, D, Milburn, RH, de Miranda, JM, Napier, A, Nguyen, A, d’Oliveira, AB, O’Shaughnessy, K, Peng, KC, Perera, LP, Purohit, MV, Quinn, B, Radeztsky, S, Rafatian, A, Reay, NW, Reidy, JJ, dos Reis, AC, Rubin, HA, Sanders, DA, Santha, AKS, Santoro, AFS, Schwartz, AJ, Sheaff, M, Sidwell, RA, Slaughter, AJ, Sokoloff, MD, Salinas, CJS, Stanton, NR, Stefanski, RJ, Stenson, K, Summers, DJ, Takach, S, Thorne, K, Tripathi, AK, Watanabe, S, Weiss-Babai, R, Wiener, J, Witchey, N, Wolin, E, Yang, SM, Yi, D, Yoshida, S, Zaliznyak, R & Zhang, C 2002, 'Dalitz Plot Analysis of the Decay [Formula presented] and Indication of a Low-Mass Scalar [Formula presented] Resonance', Physical Review Letters, vol. 89, no. 12. https://doi.org/10.1103/PhysRevLett.89.121801

TY - JOUR

T1 - Dalitz Plot Analysis of the Decay [Formula presented] and Indication of a Low-Mass Scalar [Formula presented] Resonance

AU - Aitala, E. M.

AU - Amato, S.

AU - Anjos, J. C.

AU - Appel, J. A.

AU - Ashery, D.

AU - Banerjee, S.

AU - Bediaga, I.

AU - Blaylock, G.

AU - Bracker, S. B.

AU - Burchat, P. R.

AU - Burnstein, R. A.

AU - Carter, T.

AU - Carvalho, H. S.

AU - Copty, N. K.

AU - Cremaldi, L. M.

AU - Darling, C.

AU - Denisenko, K.

AU - Devmal, S.

AU - Fernandez, A.

AU - Fox, G. F.

AU - Gagnon, P.

AU - Göbel, C.

AU - Gounder, K.

AU - Halling, A. M.

AU - Herrera, G.

AU - Hurvits, G.

AU - James, C.

AU - Kasper, P. A.

AU - Kwan, S.

AU - Langs, D. C.

AU - Leslie, J.

AU - Lundberg, B.

AU - Magnin, J.

AU - Massafferri, A.

AU - MayTal-Beck, S.

AU - Meadows, B.

AU - de Mello Neto, J. R.T.

AU - Mihalcea, D.

AU - Milburn, R. H.

AU - de Miranda, J. M.

AU - Napier, A.

AU - Nguyen, A.

AU - d’Oliveira, A. B.

AU - O’Shaughnessy, K.

AU - Peng, K. C.

AU - Perera, L. P.

AU - Purohit, M. V.

AU - Quinn, B.

AU - Radeztsky, S.

AU - Rafatian, A.

AU - Reay, N. W.

AU - Reidy, J. J.

AU - dos Reis, A. C.

AU - Rubin, H. A.

AU - Sanders, D. A.

AU - Santha, A. K.S.

AU - Santoro, A. F.S.

AU - Schwartz, A. J.

AU - Sheaff, M.

AU - Sidwell, R. A.

AU - Slaughter, A. J.

AU - Sokoloff, M. D.

AU - Salinas, C. J.Solano

AU - Stanton, N. R.

AU - Stefanski, R. J.

AU - Stenson, K.

AU - Summers, D. J.

AU - Takach, S.

AU - Thorne, K.

AU - Tripathi, A. K.

AU - Watanabe, S.

AU - Weiss-Babai, R.

AU - Wiener, J.

AU - Witchey, N.

AU - Wolin, E.

AU - Yang, S. M.

AU - Yi, D.

AU - Yoshida, S.

AU - Zaliznyak, R.

AU - Zhang, C.

PY - 2002

Y1 - 2002

N2 - We study the Dalitz plot of the decay [Formula presented] with a sample of 15090 events from Fermilab experiment E791. Modeling the decay amplitude as the coherent sum of known [Formula presented] resonances and a uniform nonresonant term, we do not obtain an acceptable fit. If we allow the mass and width of the [Formula presented] to float, we obtain values consistent with those from PDG but the [Formula presented] 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 [Formula presented] and width [Formula presented]. The mass and width of the [Formula presented] become [Formula presented] and [Formula presented], respectively. Our results provide new information on the scalar sector in hadron spectroscopy.

AB - We study the Dalitz plot of the decay [Formula presented] with a sample of 15090 events from Fermilab experiment E791. Modeling the decay amplitude as the coherent sum of known [Formula presented] resonances and a uniform nonresonant term, we do not obtain an acceptable fit. If we allow the mass and width of the [Formula presented] to float, we obtain values consistent with those from PDG but the [Formula presented] 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 [Formula presented] and width [Formula presented]. The mass and width of the [Formula presented] become [Formula presented] and [Formula presented], respectively. Our results provide new information on the scalar sector in hadron spectroscopy.

UR - http://www.scopus.com/inward/record.url?scp=85038290812&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.89.121801

DO - 10.1103/PhysRevLett.89.121801

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

C2 - 12225077

AN - SCOPUS:85038290812

SN - 0031-9007

VL - 89

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

ER -

Dalitz Plot Analysis of the Decay [Formula presented] and Indication of a Low-Mass Scalar [Formula presented] Resonance

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