Evidence for exotic JPC=1-+ meson production in the reaction π-p→ηπ-p at 18 GeV/c

S. U. Chung; K. Danyo; R. W. Hackenburg; C. Olchanski; D. P. Weygand; H. J. Willutzki; S. P. Denisov; V. A. Dorofeev; I. A. Kachaev; V. V. Lipaev; A. V. Popov; D. I. Ryabchikov; Z. Bar-Yam; J. P. Dowd; P. Eugenio; M. Hayek; W. Kern; E. King; N. Shenhav; V. A. Bodyagin; O. L. Kodolova; V. L. Korotkikh; M. A. Kostin; A. I. Ostrovidov; L. I. Sarycheva; N. B. Sinev; I. N. Vardanyan; A. A. Yershov; D. S. Brown; T. K. Pedlar; K. K. Seth; J. Wise; D. Zhao; T. Adams; J. M. Bishop; N. M. Cason; E. I. Ivanov; J. M. LoSecco; J. J. Manak; A. H. Sanjari; W. D. Shephard; D. L. Stienike; S. A. Taegar; D. R. Thompson; G. S. Adams; J. P. Cummings; J. Kuhn; M. Nozar; J. A. Smith; D. B. White; M. Witkowski

Evidence for exotic J^PC=1^-+ meson production in the reaction π^-p→ηπ^-p at 18 GeV/c

S. U. Chung^*, K. Danyo, R. W. Hackenburg, C. Olchanski, D. P. Weygand, H. J. Willutzki, S. P. Denisov, V. A. Dorofeev, I. A. Kachaev, V. V. Lipaev, A. V. Popov, D. I. Ryabchikov, Z. Bar-Yam, J. P. Dowd, P. Eugenio, M. Hayek, W. Kern, E. King, N. Shenhav, V. A. BodyaginO. L. Kodolova, V. L. Korotkikh, M. A. Kostin, A. I. Ostrovidov, L. I. Sarycheva, N. B. Sinev, I. N. Vardanyan, A. A. Yershov, D. S. Brown, T. K. Pedlar, K. K. Seth, J. Wise, D. Zhao, T. Adams, J. M. Bishop, N. M. Cason, E. I. Ivanov, J. M. LoSecco, J. J. Manak, A. H. Sanjari, W. D. Shephard, D. L. Stienike, S. A. Taegar, D. R. Thompson, G. S. Adams, J. P. Cummings, J. Kuhn, M. Nozar, J. A. Smith, D. B. White, M. Witkowski

^*Corresponding author for this work

Physics and Astronomy

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Abstract

Details of the analysis of the ηπ^- system studied in the reaction π^-p→ηπ^-p at 18 GeV/c are given. Separate analyses for the 2γ and π⁺π^-π⁰ decay modes of the η are presented. An amplitude analysis of the data indicates the presence of interference between the a₂^-(1320) and a J^PC=1^-+ wave between 1.2 and 1.6 GeV/c². The phase difference between these waves shows a phase motion not attributable solely to the a₂^-(1320). The data can be fitted by interference between the a₂^-(1320) and an exotic 1^-+ resonance with M=(1370±16_-30⁺⁵⁰) MeV/c² and Γ=(385±40_-105⁺⁶⁵) MeV/c². Our results are compared with those of other experiments.

Original language	English (US)
Article number	092001
Pages (from-to)	1-24
Number of pages	24
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	60
Issue number	9
State	Published - Nov 1 1999

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Chung, S. U., Danyo, K., Hackenburg, R. W., Olchanski, C., Weygand, D. P., Willutzki, H. J., Denisov, S. P., Dorofeev, V. A., Kachaev, I. A., Lipaev, V. V., Popov, A. V., Ryabchikov, D. I., Bar-Yam, Z., Dowd, J. P., Eugenio, P., Hayek, M., Kern, W., King, E., Shenhav, N., ... Witkowski, M. (1999). Evidence for exotic J^PC=1^-+ meson production in the reaction π^-p→ηπ^-p at 18 GeV/c. Physical Review D - Particles, Fields, Gravitation and Cosmology, 60(9), 1-24. Article 092001.

@article{63e00aa0563d4b54a72151ca8a3e26b7,

title = "Evidence for exotic JPC=1-+ meson production in the reaction π-p→ηπ-p at 18 GeV/c",

abstract = "Details of the analysis of the ηπ- system studied in the reaction π-p→ηπ-p at 18 GeV/c are given. Separate analyses for the 2γ and π+π-π0 decay modes of the η are presented. An amplitude analysis of the data indicates the presence of interference between the a2-(1320) and a JPC=1-+ wave between 1.2 and 1.6 GeV/c2. The phase difference between these waves shows a phase motion not attributable solely to the a2-(1320). The data can be fitted by interference between the a2-(1320) and an exotic 1-+ resonance with M=(1370±16-30+50) MeV/c2 and Γ=(385±40-105+65) MeV/c2. Our results are compared with those of other experiments.",

author = "Chung, {S. U.} and K. Danyo and Hackenburg, {R. W.} and C. Olchanski and Weygand, {D. P.} and Willutzki, {H. J.} and Denisov, {S. P.} and Dorofeev, {V. A.} and Kachaev, {I. A.} and Lipaev, {V. V.} and Popov, {A. V.} and Ryabchikov, {D. I.} and Z. Bar-Yam and Dowd, {J. P.} and P. Eugenio and M. Hayek and W. Kern and E. King and N. Shenhav and Bodyagin, {V. A.} and Kodolova, {O. L.} and Korotkikh, {V. L.} and Kostin, {M. A.} and Ostrovidov, {A. I.} and Sarycheva, {L. I.} and Sinev, {N. B.} and Vardanyan, {I. N.} and Yershov, {A. A.} and Brown, {D. S.} and Pedlar, {T. K.} and Seth, {K. K.} and J. Wise and D. Zhao and T. Adams and Bishop, {J. M.} and Cason, {N. M.} and Ivanov, {E. I.} and LoSecco, {J. M.} and Manak, {J. J.} and Sanjari, {A. H.} and Shephard, {W. D.} and Stienike, {D. L.} and Taegar, {S. A.} and Thompson, {D. R.} and Adams, {G. S.} and Cummings, {J. P.} and J. Kuhn and M. Nozar and Smith, {J. A.} and White, {D. B.} and M. Witkowski",

year = "1999",

month = nov,

day = "1",

language = "English (US)",

volume = "60",

pages = "1--24",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "0556-2821",

publisher = "American Institute of Physics",

number = "9",

}

Chung, SU, Danyo, K, Hackenburg, RW, Olchanski, C, Weygand, DP, Willutzki, HJ, Denisov, SP, Dorofeev, VA, Kachaev, IA, Lipaev, VV, Popov, AV, Ryabchikov, DI, Bar-Yam, Z, Dowd, JP, Eugenio, P, Hayek, M, Kern, W, King, E, Shenhav, N, Bodyagin, VA, Kodolova, OL, Korotkikh, VL, Kostin, MA, Ostrovidov, AI, Sarycheva, LI, Sinev, NB, Vardanyan, IN, Yershov, AA, Brown, DS, Pedlar, TK, Seth, KK, Wise, J, Zhao, D, Adams, T, Bishop, JM, Cason, NM, Ivanov, EI, LoSecco, JM, Manak, JJ, Sanjari, AH, Shephard, WD, Stienike, DL, Taegar, SA, Thompson, DR, Adams, GS, Cummings, JP, Kuhn, J, Nozar, M, Smith, JA, White, DB & Witkowski, M 1999, 'Evidence for exotic J^PC=1^-+ meson production in the reaction π^-p→ηπ^-p at 18 GeV/c', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 60, no. 9, 092001, pp. 1-24.

TY - JOUR

T1 - Evidence for exotic JPC=1-+ meson production in the reaction π-p→ηπ-p at 18 GeV/c

AU - Chung, S. U.

AU - Danyo, K.

AU - Hackenburg, R. W.

AU - Olchanski, C.

AU - Weygand, D. P.

AU - Willutzki, H. J.

AU - Denisov, S. P.

AU - Dorofeev, V. A.

AU - Kachaev, I. A.

AU - Lipaev, V. V.

AU - Popov, A. V.

AU - Ryabchikov, D. I.

AU - Bar-Yam, Z.

AU - Dowd, J. P.

AU - Eugenio, P.

AU - Hayek, M.

AU - Kern, W.

AU - King, E.

AU - Shenhav, N.

AU - Bodyagin, V. A.

AU - Kodolova, O. L.

AU - Korotkikh, V. L.

AU - Kostin, M. A.

AU - Ostrovidov, A. I.

AU - Sarycheva, L. I.

AU - Sinev, N. B.

AU - Vardanyan, I. N.

AU - Yershov, A. A.

AU - Brown, D. S.

AU - Pedlar, T. K.

AU - Seth, K. K.

AU - Wise, J.

AU - Zhao, D.

AU - Adams, T.

AU - Bishop, J. M.

AU - Cason, N. M.

AU - Ivanov, E. I.

AU - LoSecco, J. M.

AU - Manak, J. J.

AU - Sanjari, A. H.

AU - Shephard, W. D.

AU - Stienike, D. L.

AU - Taegar, S. A.

AU - Thompson, D. R.

AU - Adams, G. S.

AU - Cummings, J. P.

AU - Kuhn, J.

AU - Nozar, M.

AU - Smith, J. A.

AU - White, D. B.

AU - Witkowski, M.

PY - 1999/11/1

Y1 - 1999/11/1

N2 - Details of the analysis of the ηπ- system studied in the reaction π-p→ηπ-p at 18 GeV/c are given. Separate analyses for the 2γ and π+π-π0 decay modes of the η are presented. An amplitude analysis of the data indicates the presence of interference between the a2-(1320) and a JPC=1-+ wave between 1.2 and 1.6 GeV/c2. The phase difference between these waves shows a phase motion not attributable solely to the a2-(1320). The data can be fitted by interference between the a2-(1320) and an exotic 1-+ resonance with M=(1370±16-30+50) MeV/c2 and Γ=(385±40-105+65) MeV/c2. Our results are compared with those of other experiments.

AB - Details of the analysis of the ηπ- system studied in the reaction π-p→ηπ-p at 18 GeV/c are given. Separate analyses for the 2γ and π+π-π0 decay modes of the η are presented. An amplitude analysis of the data indicates the presence of interference between the a2-(1320) and a JPC=1-+ wave between 1.2 and 1.6 GeV/c2. The phase difference between these waves shows a phase motion not attributable solely to the a2-(1320). The data can be fitted by interference between the a2-(1320) and an exotic 1-+ resonance with M=(1370±16-30+50) MeV/c2 and Γ=(385±40-105+65) MeV/c2. Our results are compared with those of other experiments.

UR - http://www.scopus.com/inward/record.url?scp=17144411528&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17144411528&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:17144411528

SN - 0556-2821

VL - 60

SP - 1

EP - 24

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 9

M1 - 092001

ER -

Evidence for exotic J^PC=1^-+ meson production in the reaction π^-p→ηπ^-p at 18 GeV/c

Abstract

ASJC Scopus subject areas

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