Observation of a pseudoscalar state in near threshold

Z. Bai; G. T. Blaylock; T. Bolton; T. E. Browder; J. S. Brown; K. O. Bunnell; T. H. Burnett; R. E. Cassell; D. Coffman; V. Cook; F. DeJongh; D. E. Dorfan; J. Drinkard; G. P. Dubois; G. Eigen; K. F. Einsweiler; B. I. Eisenstein; T. Freese; C. Gatto; G. Gladding; J. Hauser; C. A. Heusch; D. G. Hitlin; J. M. Izen; P. C. Kim; J. Labs; A. Li; W. S. Lockman; U. Mallik; C. G. Matthews; A. I. Mincer; R. Mir; P. M. Mockett; R. F. Mozley; B. Nemati; A. Odian; L. Parrish; R. Partridge; D. Pitman; S. A. Plaetzer; J. D. Richman; H. F.W. Sadrozinski; M. Scarlatella; T. L. Schalk; R. H. Schindler; A. Seiden; C. Simopoulos; I. E. Stockdale; W. Toki; B. Tripsas; F. Villa; M. Z. Wang; S. Wasserbaech; A. J. Weinstein; S. Weseler; H. J. Willutzki; D. Wisinski; W. J. Wisniewski; R. Xu; Y. Zhu

doi:10.1103/PhysRevLett.65.1309

Observation of a pseudoscalar state in near threshold

Z. Bai, G. T. Blaylock, T. Bolton, T. E. Browder, J. S. Brown, K. O. Bunnell, T. H. Burnett, R. E. Cassell, D. Coffman, V. Cook, F. DeJongh, D. E. Dorfan, J. Drinkard, G. P. Dubois, G. Eigen, K. F. Einsweiler, B. I. Eisenstein, T. Freese, C. Gatto, G. GladdingJ. Hauser, C. A. Heusch, D. G. Hitlin, J. M. Izen, P. C. Kim, J. Labs, A. Li, W. S. Lockman, U. Mallik, C. G. Matthews, A. I. Mincer, R. Mir, P. M. Mockett, R. F. Mozley, B. Nemati, A. Odian, L. Parrish, R. Partridge, D. Pitman, S. A. Plaetzer, J. D. Richman, H. F.W. Sadrozinski, M. Scarlatella, T. L. Schalk, R. H. Schindler, A. Seiden, C. Simopoulos, I. E. Stockdale, W. Toki, B. Tripsas, F. Villa, M. Z. Wang, S. Wasserbaech, A. J. Weinstein, S. Weseler, H. J. Willutzki, D. Wisinski, W. J. Wisniewski, R. Xu, Y. Zhu

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Abstract

We present a study of the radiative decay in the K+K-K+K- and K+K-KS0KL0 final states. A pseudoscalar state is observed in the invariant-mass spectrum at 2.22 GeV/c2 with a width of 150 MeV/c2. The product branching ratios are BB10-4 for the K+K-K+K- mode and B0.6)×10-4 for the K+K-KS0KL0 mode. No evidence for 2++ states below 2.4 GeV/c2 is found in this radiative decay mode.

Original language	English (US)
Pages (from-to)	1309-1312
Number of pages	4
Journal	Physical Review Letters
Volume	65
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.65.1309
State	Published - 1990

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.65.1309

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Bai, Z., Blaylock, G. T., Bolton, T., Browder, T. E., Brown, J. S., Bunnell, K. O., Burnett, T. H., Cassell, R. E., Coffman, D., Cook, V., DeJongh, F., Dorfan, D. E., Drinkard, J., Dubois, G. P., Eigen, G., Einsweiler, K. F., Eisenstein, B. I., Freese, T., Gatto, C., ... Zhu, Y. (1990). Observation of a pseudoscalar state in near threshold. Physical Review Letters, 65(11), 1309-1312. https://doi.org/10.1103/PhysRevLett.65.1309

Bai, Z, Blaylock, GT, Bolton, T, Browder, TE, Brown, JS, Bunnell, KO, Burnett, TH, Cassell, RE, Coffman, D, Cook, V, DeJongh, F, Dorfan, DE, Drinkard, J, Dubois, GP, Eigen, G, Einsweiler, KF, Eisenstein, BI, Freese, T, Gatto, C, Gladding, G, Hauser, J, Heusch, CA, Hitlin, DG, Izen, JM, Kim, PC, Labs, J, Li, A, Lockman, WS, Mallik, U, Matthews, CG, Mincer, AI, Mir, R, Mockett, PM, Mozley, RF, Nemati, B, Odian, A, Parrish, L, Partridge, R, Pitman, D, Plaetzer, SA, Richman, JD, Sadrozinski, HFW, Scarlatella, M, Schalk, TL, Schindler, RH, Seiden, A, Simopoulos, C, Stockdale, IE, Toki, W, Tripsas, B, Villa, F, Wang, MZ, Wasserbaech, S, Weinstein, AJ, Weseler, S, Willutzki, HJ, Wisinski, D, Wisniewski, WJ, Xu, R & Zhu, Y 1990, 'Observation of a pseudoscalar state in near threshold', Physical Review Letters, vol. 65, no. 11, pp. 1309-1312. https://doi.org/10.1103/PhysRevLett.65.1309

@article{6d2a31838b914bfd9352b9d2c35e35f8,

title = "Observation of a pseudoscalar state in near threshold",

abstract = "We present a study of the radiative decay in the K+K-K+K- and K+K-KS0KL0 final states. A pseudoscalar state is observed in the invariant-mass spectrum at 2.22 GeV/c2 with a width of 150 MeV/c2. The product branching ratios are BB10-4 for the K+K-K+K- mode and B0.6)×10-4 for the K+K-KS0KL0 mode. No evidence for 2++ states below 2.4 GeV/c2 is found in this radiative decay mode.",

author = "Z. Bai and Blaylock, {G. T.} and T. Bolton and Browder, {T. E.} and Brown, {J. S.} and Bunnell, {K. O.} and Burnett, {T. H.} and Cassell, {R. E.} and D. Coffman and V. Cook and F. DeJongh and Dorfan, {D. E.} and J. Drinkard and Dubois, {G. P.} and G. Eigen and Einsweiler, {K. F.} and Eisenstein, {B. I.} and T. Freese and C. Gatto and G. Gladding and J. Hauser and Heusch, {C. A.} and Hitlin, {D. G.} and Izen, {J. M.} and Kim, {P. C.} and J. Labs and A. Li and Lockman, {W. S.} and U. Mallik and Matthews, {C. G.} and Mincer, {A. I.} and R. Mir and Mockett, {P. M.} and Mozley, {R. F.} and B. Nemati and A. Odian and L. Parrish and R. Partridge and D. Pitman and Plaetzer, {S. A.} and Richman, {J. D.} and Sadrozinski, {H. F.W.} and M. Scarlatella and Schalk, {T. L.} and Schindler, {R. H.} and A. Seiden and C. Simopoulos and Stockdale, {I. E.} and W. Toki and B. Tripsas and F. Villa and Wang, {M. Z.} and S. Wasserbaech and Weinstein, {A. J.} and S. Weseler and Willutzki, {H. J.} and D. Wisinski and Wisniewski, {W. J.} and R. Xu and Y. Zhu",

year = "1990",

doi = "10.1103/PhysRevLett.65.1309",

language = "English (US)",

volume = "65",

pages = "1309--1312",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "11",

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TY - JOUR

T1 - Observation of a pseudoscalar state in near threshold

AU - Bai, Z.

AU - Blaylock, G. T.

AU - Bolton, T.

AU - Browder, T. E.

AU - Brown, J. S.

AU - Bunnell, K. O.

AU - Burnett, T. H.

AU - Cassell, R. E.

AU - Coffman, D.

AU - Cook, V.

AU - DeJongh, F.

AU - Dorfan, D. E.

AU - Drinkard, J.

AU - Dubois, G. P.

AU - Eigen, G.

AU - Einsweiler, K. F.

AU - Eisenstein, B. I.

AU - Freese, T.

AU - Gatto, C.

AU - Gladding, G.

AU - Hauser, J.

AU - Heusch, C. A.

AU - Hitlin, D. G.

AU - Izen, J. M.

AU - Kim, P. C.

AU - Labs, J.

AU - Li, A.

AU - Lockman, W. S.

AU - Mallik, U.

AU - Matthews, C. G.

AU - Mincer, A. I.

AU - Mir, R.

AU - Mockett, P. M.

AU - Mozley, R. F.

AU - Nemati, B.

AU - Odian, A.

AU - Parrish, L.

AU - Partridge, R.

AU - Pitman, D.

AU - Plaetzer, S. A.

AU - Richman, J. D.

AU - Sadrozinski, H. F.W.

AU - Scarlatella, M.

AU - Schalk, T. L.

AU - Schindler, R. H.

AU - Seiden, A.

AU - Simopoulos, C.

AU - Stockdale, I. E.

AU - Toki, W.

AU - Tripsas, B.

AU - Villa, F.

AU - Wang, M. Z.

AU - Wasserbaech, S.

AU - Weinstein, A. J.

AU - Weseler, S.

AU - Willutzki, H. J.

AU - Wisinski, D.

AU - Wisniewski, W. J.

AU - Xu, R.

AU - Zhu, Y.

PY - 1990

Y1 - 1990

N2 - We present a study of the radiative decay in the K+K-K+K- and K+K-KS0KL0 final states. A pseudoscalar state is observed in the invariant-mass spectrum at 2.22 GeV/c2 with a width of 150 MeV/c2. The product branching ratios are BB10-4 for the K+K-K+K- mode and B0.6)×10-4 for the K+K-KS0KL0 mode. No evidence for 2++ states below 2.4 GeV/c2 is found in this radiative decay mode.

AB - We present a study of the radiative decay in the K+K-K+K- and K+K-KS0KL0 final states. A pseudoscalar state is observed in the invariant-mass spectrum at 2.22 GeV/c2 with a width of 150 MeV/c2. The product branching ratios are BB10-4 for the K+K-K+K- mode and B0.6)×10-4 for the K+K-KS0KL0 mode. No evidence for 2++ states below 2.4 GeV/c2 is found in this radiative decay mode.

UR - http://www.scopus.com/inward/record.url?scp=4243755556&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4243755556&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.65.1309

DO - 10.1103/PhysRevLett.65.1309

M3 - Article

AN - SCOPUS:4243755556

SN - 0031-9007

VL - 65

SP - 1309

EP - 1312

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

ER -

Observation of a pseudoscalar state in near threshold

Abstract

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