Exotic meson production in the f1(1285)π- system observed in the reaction π-p → ηπ+π -π-p at 18 GeV/c

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

doi:10.1016/j.physletb.2004.05.032

Exotic meson production in the f₁(1285)π^- system observed in the reaction π^-p → ηπ⁺π ^-π^-p at 18 GeV/c

J. Kuhn^*, G. S. Adams, T. Adams, Z. Bar-Yam, J. M. Bishop, V. A. Bodyagin, D. S. Brown, N. M. Cason, S. U. Chung, J. P. Cummings, K. Danyo, A. I. Demianov, S. P. Denisov, V. Dorofeev, J. P. Dowd, P. Eugenio, X. L. Fan, A. M. Gribushin, R. W. Hackenburg, M. HayekJ. Hu, E. I. Ivanov, D. Joffe, I. Kachaev, W. Kern, E. King, O. L. Kodolova, V. L. Korotkikh, M. A. Kostin, V. V. Lipaev, J. M. LoSecco, M. Lu, J. J. Manak, J. Napolitano, M. Nozar, C. Olchanski, A. I. Ostrovidov, T. K. Pedlar, A. V. Popov, D. I. Ryabchikov, L. I. Sarycheva, K. K. Seth, N. Shenhav, X. Shen, W. D. Shephard, N. B. Sinev, D. L. Stienike, J. S. Suh, S. A. Taegar, A. Tomaradze, I. N. Vardanyan, D. P. Weygand, D. B. White, H. J. Willutzki, M. Witkowski, A. A. Yershov

^*Corresponding author for this work

Physics and Astronomy

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Abstract

This Letter reports results from the partial wave analysis of the π^-π^-π⁺η final state in π^-p collisions at 18GeV/c. Strong evidence is observed for production of two mesons with exotic quantum numbers of spin, parity and charge conjugation, J^PC=1^-+ in the decay channel f ₁(1285)π^-. The mass M=1709±24±41MeV/ c² and width Γ=403±80±115MeV/c² of the first state are consistent with the parameters of the previously observed π₁(1600). The second resonance with mass M= 2001±30±92MeV/c² and width Γ= 333±52±49MeV/c² agrees very well with predictions from theoretical models. In addition, the presence of π₂(1900) is confirmed with mass M=2003±88±148MeV/c² and width Γ=306±132±121MeV/c² and a new state, a ₁(2096), is observed with mass M=2096±17±121MeV/c ² and width Γ=451±41±81MeV/c². The decay properties of these last two states are consistent with flux tube model predictions for hybrid mesons with non-exotic quantum numbers.

Original language	English (US)
Pages (from-to)	109-117
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	595
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physletb.2004.05.032
State	Published - Aug 12 2004

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2004.05.032

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Kuhn, J., Adams, G. S., Adams, T., Bar-Yam, Z., Bishop, J. M., Bodyagin, V. A., Brown, D. S., Cason, N. M., Chung, S. U., Cummings, J. P., Danyo, K., Demianov, A. I., Denisov, S. P., Dorofeev, V., Dowd, J. P., Eugenio, P., Fan, X. L., Gribushin, A. M., Hackenburg, R. W., ... Yershov, A. A. (2004). Exotic meson production in the f₁(1285)π^- system observed in the reaction π^-p → ηπ⁺π ^-π^-p at 18 GeV/c. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 595(1-4), 109-117. https://doi.org/10.1016/j.physletb.2004.05.032

@article{c9fa89cfd5404eb984e17f09760c8c09,

title = "Exotic meson production in the f1(1285)π- system observed in the reaction π-p → ηπ+π -π-p at 18 GeV/c",

abstract = "This Letter reports results from the partial wave analysis of the π-π-π+η final state in π-p collisions at 18GeV/c. Strong evidence is observed for production of two mesons with exotic quantum numbers of spin, parity and charge conjugation, JPC=1-+ in the decay channel f 1(1285)π-. The mass M=1709±24±41MeV/ c2 and width Γ=403±80±115MeV/c2 of the first state are consistent with the parameters of the previously observed π1(1600). The second resonance with mass M= 2001±30±92MeV/c2 and width Γ= 333±52±49MeV/c2 agrees very well with predictions from theoretical models. In addition, the presence of π2(1900) is confirmed with mass M=2003±88±148MeV/c2 and width Γ=306±132±121MeV/c2 and a new state, a 1(2096), is observed with mass M=2096±17±121MeV/c 2 and width Γ=451±41±81MeV/c2. The decay properties of these last two states are consistent with flux tube model predictions for hybrid mesons with non-exotic quantum numbers.",

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

note = "Funding Information: This research work was supported in part by the US Department of Energy, the US National Science Foundation and the Russian State Committee for Science and Technology. The authors also would like to thank the members of the Brookhaven MPS staff for their support in running the experiment. ",

year = "2004",

month = aug,

day = "12",

doi = "10.1016/j.physletb.2004.05.032",

language = "English (US)",

volume = "595",

pages = "109--117",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-4",

}

Kuhn, J, Adams, GS, Adams, T, Bar-Yam, Z, Bishop, JM, Bodyagin, VA, Brown, DS, Cason, NM, Chung, SU, Cummings, JP, Danyo, K, Demianov, AI, Denisov, SP, Dorofeev, V, Dowd, JP, Eugenio, P, Fan, XL, Gribushin, AM, Hackenburg, RW, Hayek, M, Hu, J, Ivanov, EI, Joffe, D, Kachaev, I, Kern, W, King, E, Kodolova, OL, Korotkikh, VL, Kostin, MA, Lipaev, VV, LoSecco, JM, Lu, M, Manak, JJ, Napolitano, J, Nozar, M, Olchanski, C, Ostrovidov, AI, Pedlar, TK, Popov, AV, Ryabchikov, DI, Sarycheva, LI, Seth, KK, Shenhav, N, Shen, X, Shephard, WD, Sinev, NB, Stienike, DL, Suh, JS, Taegar, SA, Tomaradze, A, Vardanyan, IN, Weygand, DP, White, DB, Willutzki, HJ, Witkowski, M & Yershov, AA 2004, 'Exotic meson production in the f₁(1285)π^- system observed in the reaction π^-p → ηπ⁺π ^-π^-p at 18 GeV/c', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 595, no. 1-4, pp. 109-117. https://doi.org/10.1016/j.physletb.2004.05.032

TY - JOUR

T1 - Exotic meson production in the f1(1285)π- system observed in the reaction π-p → ηπ+π -π-p at 18 GeV/c

AU - Kuhn, J.

AU - Adams, G. S.

AU - Adams, T.

AU - Bar-Yam, Z.

AU - Bishop, J. M.

AU - Bodyagin, V. A.

AU - Brown, D. S.

AU - Cason, N. M.

AU - Chung, S. U.

AU - Cummings, J. P.

AU - Danyo, K.

AU - Demianov, A. I.

AU - Denisov, S. P.

AU - Dorofeev, V.

AU - Dowd, J. P.

AU - Eugenio, P.

AU - Fan, X. L.

AU - Gribushin, A. M.

AU - Hackenburg, R. W.

AU - Hayek, M.

AU - Hu, J.

AU - Ivanov, E. I.

AU - Joffe, D.

AU - Kachaev, I.

AU - Kern, W.

AU - King, E.

AU - Kodolova, O. L.

AU - Korotkikh, V. L.

AU - Kostin, M. A.

AU - Lipaev, V. V.

AU - LoSecco, J. M.

AU - Lu, M.

AU - Manak, J. J.

AU - Napolitano, J.

AU - Nozar, M.

AU - Olchanski, C.

AU - Ostrovidov, A. I.

AU - Pedlar, T. K.

AU - Popov, A. V.

AU - Ryabchikov, D. I.

AU - Sarycheva, L. I.

AU - Seth, K. K.

AU - Shenhav, N.

AU - Shen, X.

AU - Shephard, W. D.

AU - Sinev, N. B.

AU - Stienike, D. L.

AU - Suh, J. S.

AU - Taegar, S. A.

AU - Tomaradze, A.

AU - Vardanyan, I. N.

AU - Weygand, D. P.

AU - White, D. B.

AU - Willutzki, H. J.

AU - Witkowski, M.

AU - Yershov, A. A.

N1 - Funding Information: This research work was supported in part by the US Department of Energy, the US National Science Foundation and the Russian State Committee for Science and Technology. The authors also would like to thank the members of the Brookhaven MPS staff for their support in running the experiment.

PY - 2004/8/12

Y1 - 2004/8/12

N2 - This Letter reports results from the partial wave analysis of the π-π-π+η final state in π-p collisions at 18GeV/c. Strong evidence is observed for production of two mesons with exotic quantum numbers of spin, parity and charge conjugation, JPC=1-+ in the decay channel f 1(1285)π-. The mass M=1709±24±41MeV/ c2 and width Γ=403±80±115MeV/c2 of the first state are consistent with the parameters of the previously observed π1(1600). The second resonance with mass M= 2001±30±92MeV/c2 and width Γ= 333±52±49MeV/c2 agrees very well with predictions from theoretical models. In addition, the presence of π2(1900) is confirmed with mass M=2003±88±148MeV/c2 and width Γ=306±132±121MeV/c2 and a new state, a 1(2096), is observed with mass M=2096±17±121MeV/c 2 and width Γ=451±41±81MeV/c2. The decay properties of these last two states are consistent with flux tube model predictions for hybrid mesons with non-exotic quantum numbers.

AB - This Letter reports results from the partial wave analysis of the π-π-π+η final state in π-p collisions at 18GeV/c. Strong evidence is observed for production of two mesons with exotic quantum numbers of spin, parity and charge conjugation, JPC=1-+ in the decay channel f 1(1285)π-. The mass M=1709±24±41MeV/ c2 and width Γ=403±80±115MeV/c2 of the first state are consistent with the parameters of the previously observed π1(1600). The second resonance with mass M= 2001±30±92MeV/c2 and width Γ= 333±52±49MeV/c2 agrees very well with predictions from theoretical models. In addition, the presence of π2(1900) is confirmed with mass M=2003±88±148MeV/c2 and width Γ=306±132±121MeV/c2 and a new state, a 1(2096), is observed with mass M=2096±17±121MeV/c 2 and width Γ=451±41±81MeV/c2. The decay properties of these last two states are consistent with flux tube model predictions for hybrid mesons with non-exotic quantum numbers.

UR - http://www.scopus.com/inward/record.url?scp=3843054491&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3843054491&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2004.05.032

DO - 10.1016/j.physletb.2004.05.032

M3 - Article

AN - SCOPUS:3843054491

SN - 0370-2693

VL - 595

SP - 109

EP - 117

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-4

ER -

Exotic meson production in the f₁(1285)π^- system observed in the reaction π^-p → ηπ⁺π ^-π^-p at 18 GeV/c

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