Observation of the P11 state of charmonium

P. Rubin; C. Cawlfield; B. I. Eisenstein; G. D. Gollin; I. Karliner; D. Kim; N. Lowrey; P. Naik; C. Sedlack; M. Selen; E. J. White; J. Williams; J. Wiss; K. W. Edwards; D. Besson; T. K. Pedlar; D. Cronin-Hennessy; K. Y. Gao; D. T. Gong; J. Hietala; Y. Kubota; T. Klein; B. W. Lang; S. Z. Li; R. Poling; A. W. Scott; A. Smith; S. Dobbs; Z. Metreveli; K. K. Seth; A. Tomaradze; P. Zweber; J. Ernst; A. H. Mahmood; H. Severini; D. M. Asner; S. A. Dytman; W. Love; S. Mehrabyan; J. A. Mueller; V. Savinov; Z. Li; A. Lopez; H. Mendez; J. Ramirez; G. S. Huang; D. H. Miller; V. Pavlunin; B. Sanghi; I. P J Shipsey; G. S. Adams; M. Cravey; J. P. Cummings; I. Danko; J. Napolitano; Q. He; H. Muramatsu; C. S. Park; W. Park; E. H. Thorndike; T. E. Coan; Y. S. Gao; F. Liu; M. Artuso; C. Boulahouache; S. Blusk; J. Butt; O. Dorjkhaidav; J. Li; N. Menaa; R. Mountain; R. Nandakumar; K. Randrianarivony; R. Redjimi; R. Sia; T. Skwarnicki; S. Stone; J. C. Wang; K. Zhang; S. E. Csorna; G. Bonvicini; D. Cinabro; M. Dubrovin; R. A. Briere; G. P. Chen; J. Chen; T. Ferguson; G. Tatishvili; H. Vogel; M. E. Watkins; J. L. Rosner; N. E. Adam; J. P. Alexander; K. Berkelman; D. G. Cassel; V. Crede; J. E. Duboscq; K. M. Ecklund; R. Ehrlich; L. Fields; R. S. Galik; L. Gibbons; B. Gittelman; R. Gray; S. W. Gray; D. L. Hartill; B. K. Heltsley; D. Hertz; C. D. Jones; J. Kandaswamy; D. L. Kreinick; V. E. Kuznetsov; H. Mahlke-Krüger; T. O. Meyer; P. U E Onyisi; J. R. Patterson; D. Peterson; E. A. Phillips; J. Pivarski; D. Riley; A. Ryd; A. J. Sadoff; H. Schwarthoff; X. Shi; M. R. Shepherd; S. Stroiney; W. M. Sun; D. Urner; T. Wilksen; K. M. Weaver; M. Weinberger; S. B. Athar; P. Avery; L. Breva-Newell; R. Patel; V. Potlia; H. Stoeck; J. Yelton

doi:10.1103/PhysRevD.72.092004

Observation of the P11 state of charmonium

P. Rubin, C. Cawlfield, B. I. Eisenstein, G. D. Gollin, I. Karliner, D. Kim, N. Lowrey, P. Naik, C. Sedlack, M. Selen, E. J. White, J. Williams, J. Wiss, K. W. Edwards, D. Besson, T. K. Pedlar, D. Cronin-Hennessy, K. Y. Gao, D. T. Gong, J. HietalaY. Kubota, T. Klein, B. W. Lang, S. Z. Li, R. Poling, A. W. Scott, A. Smith, S. Dobbs, Z. Metreveli, K. K. Seth, A. Tomaradze, P. Zweber, J. Ernst, A. H. Mahmood, H. Severini, D. M. Asner, S. A. Dytman, W. Love, S. Mehrabyan, J. A. Mueller, V. Savinov, Z. Li, A. Lopez, H. Mendez, J. Ramirez, G. S. Huang, D. H. Miller, V. Pavlunin, B. Sanghi, I. P J Shipsey, G. S. Adams, M. Cravey, J. P. Cummings, I. Danko, J. Napolitano, Q. He, H. Muramatsu, C. S. Park, W. Park, E. H. Thorndike, T. E. Coan, Y. S. Gao, F. Liu, M. Artuso, C. Boulahouache, S. Blusk, J. Butt, O. Dorjkhaidav, J. Li, N. Menaa, R. Mountain, R. Nandakumar, K. Randrianarivony, R. Redjimi, R. Sia, T. Skwarnicki, S. Stone, J. C. Wang, K. Zhang, S. E. Csorna, G. Bonvicini, D. Cinabro, M. Dubrovin, R. A. Briere, G. P. Chen, J. Chen, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner, N. E. Adam, J. P. Alexander, K. Berkelman, D. G. Cassel, V. Crede, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, L. Fields, R. S. Galik, L. Gibbons, B. Gittelman, R. Gray, S. W. Gray, D. L. Hartill, B. K. Heltsley, D. Hertz, C. D. Jones, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov, H. Mahlke-Krüger, T. O. Meyer, P. U E Onyisi, J. R. Patterson, D. Peterson, E. A. Phillips, J. Pivarski, D. Riley, A. Ryd, A. J. Sadoff, H. Schwarthoff, X. Shi, M. R. Shepherd, S. Stroiney, W. M. Sun, D. Urner, T. Wilksen, K. M. Weaver, M. Weinberger, S. B. Athar, P. Avery, L. Breva-Newell, R. Patel, V. Potlia, H. Stoeck, J. Yelton

Physics and Astronomy (Twin Cities)

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Abstract

The spin-singlet P-wave state of charmonium, hc(1P1), has been observed in the decay ψ(2S)→π0hc followed by hc→γηc. Inclusive and exclusive analyses of the M(hc) spectrum have been performed. Two complementary inclusive analyses select either a range of energies for the photon emitted in hc→γηc or a range of values of M(ηc). These analyses, consistent with one another within statistics, yield M(hc)=[3524.9±0.7(stat)±0.4(sys)]MeV/c2 and a product of the branching ratios Bψ(ψ(2S)→π0hc)×Bh(hc→γηc)= [3.5±1.0(stat)±0.7(sys)]×10-4. When the ηc is reconstructed in seven exclusive decay modes, 17.5±4.5 hc events are seen with an average mass M(hc)=[3523.6±0.9(stat)±0.5(sys)]MeV/c2, and BψBh=[5.3±1.5(stat)±1.0(sys)]×10-4. If combined, the inclusive and exclusive data samples yield an overall mass M(hc)=[3524. 4±0.6(stat)±0.4(sys)]MeV/c2 and product of branching ratios BψBh=[4.0±0.8(stat)±0.7(sys)]×10-4. The hc mass implies a P-wave hyperfine splitting ΔMHF(1P)M(13P)-M(11P1)=[1.0±0.6(stat) ±0.4(sys)]MeV/c2.

Original language	English (US)
Article number	092004
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	72
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.72.092004
State	Published - Nov 1 2005

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Rubin, P., Cawlfield, C., Eisenstein, B. I., Gollin, G. D., Karliner, I., Kim, D., Lowrey, N., Naik, P., Sedlack, C., Selen, M., White, E. J., Williams, J., Wiss, J., Edwards, K. W., Besson, D., Pedlar, T. K., Cronin-Hennessy, D., Gao, K. Y., Gong, D. T., ... Yelton, J. (2005). Observation of the P11 state of charmonium. Physical Review D - Particles, Fields, Gravitation and Cosmology, 72(9), Article 092004. https://doi.org/10.1103/PhysRevD.72.092004

Rubin, P, Cawlfield, C, Eisenstein, BI, Gollin, GD, Karliner, I, Kim, D, Lowrey, N, Naik, P, Sedlack, C, Selen, M, White, EJ, Williams, J, Wiss, J, Edwards, KW, Besson, D, Pedlar, TK, Cronin-Hennessy, D, Gao, KY, Gong, DT, Hietala, J, Kubota, Y, Klein, T, Lang, BW, Li, SZ, Poling, R, Scott, AW, Smith, A, Dobbs, S, Metreveli, Z, Seth, KK, Tomaradze, A, Zweber, P, Ernst, J, Mahmood, AH, Severini, H, Asner, DM, Dytman, SA, Love, W, Mehrabyan, S, Mueller, JA, Savinov, V, Li, Z, Lopez, A, Mendez, H, Ramirez, J, Huang, GS, Miller, DH, Pavlunin, V, Sanghi, B, Shipsey, IPJ, Adams, GS, Cravey, M, Cummings, JP, Danko, I, Napolitano, J, He, Q, Muramatsu, H, Park, CS, Park, W, Thorndike, EH, Coan, TE, Gao, YS, Liu, F, Artuso, M, Boulahouache, C, Blusk, S, Butt, J, Dorjkhaidav, O, Li, J, Menaa, N, Mountain, R, Nandakumar, R, Randrianarivony, K, Redjimi, R, Sia, R, Skwarnicki, T, Stone, S, Wang, JC, Zhang, K, Csorna, SE, Bonvicini, G, Cinabro, D, Dubrovin, M, Briere, RA, Chen, GP, Chen, J, Ferguson, T, Tatishvili, G, Vogel, H, Watkins, ME, Rosner, JL, Adam, NE, Alexander, JP, Berkelman, K, Cassel, DG, Crede, V, Duboscq, JE, Ecklund, KM, Ehrlich, R, Fields, L, Galik, RS, Gibbons, L, Gittelman, B, Gray, R, Gray, SW, Hartill, DL, Heltsley, BK, Hertz, D, Jones, CD, Kandaswamy, J, Kreinick, DL, Kuznetsov, VE, Mahlke-Krüger, H, Meyer, TO, Onyisi, PUE, Patterson, JR, Peterson, D, Phillips, EA, Pivarski, J, Riley, D, Ryd, A, Sadoff, AJ, Schwarthoff, H, Shi, X, Shepherd, MR, Stroiney, S, Sun, WM, Urner, D, Wilksen, T, Weaver, KM, Weinberger, M, Athar, SB, Avery, P, Breva-Newell, L, Patel, R, Potlia, V, Stoeck, H & Yelton, J 2005, 'Observation of the P11 state of charmonium', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 72, no. 9, 092004. https://doi.org/10.1103/PhysRevD.72.092004

@article{a48e8e9d037e471d812cc8b13caccdb8,

title = "Observation of the P11 state of charmonium",

abstract = "The spin-singlet P-wave state of charmonium, hc(1P1), has been observed in the decay ψ(2S)→π0hc followed by hc→γηc. Inclusive and exclusive analyses of the M(hc) spectrum have been performed. Two complementary inclusive analyses select either a range of energies for the photon emitted in hc→γηc or a range of values of M(ηc). These analyses, consistent with one another within statistics, yield M(hc)=[3524.9±0.7(stat)±0.4(sys)]MeV/c2 and a product of the branching ratios Bψ(ψ(2S)→π0hc)×Bh(hc→γηc)= [3.5±1.0(stat)±0.7(sys)]×10-4. When the ηc is reconstructed in seven exclusive decay modes, 17.5±4.5 hc events are seen with an average mass M(hc)=[3523.6±0.9(stat)±0.5(sys)]MeV/c2, and BψBh=[5.3±1.5(stat)±1.0(sys)]×10-4. If combined, the inclusive and exclusive data samples yield an overall mass M(hc)=[3524. 4±0.6(stat)±0.4(sys)]MeV/c2 and product of branching ratios BψBh=[4.0±0.8(stat)±0.7(sys)]×10-4. The hc mass implies a P-wave hyperfine splitting ΔMHF(1P)M(13P)-M(11P1)=[1.0±0.6(stat) ±0.4(sys)]MeV/c2.",

author = "P. Rubin and C. Cawlfield and Eisenstein, {B. I.} and Gollin, {G. D.} and I. Karliner and D. Kim and N. Lowrey and P. Naik and C. Sedlack and M. Selen and White, {E. J.} and J. Williams and J. Wiss and Edwards, {K. W.} and D. Besson and Pedlar, {T. K.} and D. Cronin-Hennessy and Gao, {K. Y.} and Gong, {D. T.} and J. Hietala and Y. Kubota and T. Klein and Lang, {B. W.} and Li, {S. Z.} and R. Poling and Scott, {A. W.} and A. Smith and S. Dobbs and Z. Metreveli and Seth, {K. K.} and A. Tomaradze and P. Zweber and J. Ernst and Mahmood, {A. H.} and H. Severini and Asner, {D. M.} and Dytman, {S. A.} and W. Love and S. Mehrabyan and Mueller, {J. A.} and V. Savinov and Z. Li and A. Lopez and H. Mendez and J. Ramirez and Huang, {G. S.} and Miller, {D. H.} and V. Pavlunin and B. Sanghi and Shipsey, {I. P J} and Adams, {G. S.} and M. Cravey and Cummings, {J. P.} and I. Danko and J. Napolitano and Q. He and H. Muramatsu and Park, {C. S.} and W. Park and Thorndike, {E. H.} and Coan, {T. E.} and Gao, {Y. S.} and F. Liu and M. Artuso and C. Boulahouache and S. Blusk and J. Butt and O. Dorjkhaidav and J. Li and N. Menaa and R. Mountain and R. Nandakumar and K. Randrianarivony and R. Redjimi and R. Sia and T. Skwarnicki and S. Stone and Wang, {J. C.} and K. Zhang and Csorna, {S. E.} and G. Bonvicini and D. Cinabro and M. Dubrovin and Briere, {R. A.} and Chen, {G. P.} and J. Chen and T. Ferguson and G. Tatishvili and H. Vogel and Watkins, {M. E.} and Rosner, {J. L.} and Adam, {N. E.} and Alexander, {J. P.} and K. Berkelman and Cassel, {D. G.} and V. Crede and Duboscq, {J. E.} and Ecklund, {K. M.} and R. Ehrlich and L. Fields and Galik, {R. S.} and L. Gibbons and B. Gittelman and R. Gray and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and D. Hertz and Jones, {C. D.} and J. Kandaswamy and Kreinick, {D. L.} and Kuznetsov, {V. E.} and H. Mahlke-Kr{\"u}ger and Meyer, {T. O.} and Onyisi, {P. U E} and Patterson, {J. R.} and D. Peterson and Phillips, {E. A.} and J. Pivarski and D. Riley and A. Ryd and Sadoff, {A. J.} and H. Schwarthoff and X. Shi and Shepherd, {M. R.} and S. Stroiney and Sun, {W. M.} and D. Urner and T. Wilksen and Weaver, {K. M.} and M. Weinberger and Athar, {S. B.} and P. Avery and L. Breva-Newell and R. Patel and V. Potlia and H. Stoeck and J. Yelton",

year = "2005",

month = nov,

day = "1",

doi = "10.1103/PhysRevD.72.092004",

language = "English (US)",

volume = "72",

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

issn = "1550-7998",

number = "9",

}

TY - JOUR

T1 - Observation of the P11 state of charmonium

AU - Rubin, P.

AU - Cawlfield, C.

AU - Eisenstein, B. I.

AU - Gollin, G. D.

AU - Karliner, I.

AU - Kim, D.

AU - Lowrey, N.

AU - Naik, P.

AU - Sedlack, C.

AU - Selen, M.

AU - White, E. J.

AU - Williams, J.

AU - Wiss, J.

AU - Edwards, K. W.

AU - Besson, D.

AU - Pedlar, T. K.

AU - Cronin-Hennessy, D.

AU - Gao, K. Y.

AU - Gong, D. T.

AU - Hietala, J.

AU - Kubota, Y.

AU - Klein, T.

AU - Lang, B. W.

AU - Li, S. Z.

AU - Poling, R.

AU - Scott, A. W.

AU - Smith, A.

AU - Dobbs, S.

AU - Metreveli, Z.

AU - Seth, K. K.

AU - Tomaradze, A.

AU - Zweber, P.

AU - Ernst, J.

AU - Mahmood, A. H.

AU - Severini, H.

AU - Asner, D. M.

AU - Dytman, S. A.

AU - Love, W.

AU - Mehrabyan, S.

AU - Mueller, J. A.

AU - Savinov, V.

AU - Li, Z.

AU - Lopez, A.

AU - Mendez, H.

AU - Ramirez, J.

AU - Huang, G. S.

AU - Miller, D. H.

AU - Pavlunin, V.

AU - Sanghi, B.

AU - Shipsey, I. P J

AU - Adams, G. S.

AU - Cravey, M.

AU - Cummings, J. P.

AU - Danko, I.

AU - Napolitano, J.

AU - He, Q.

AU - Muramatsu, H.

AU - Park, C. S.

AU - Park, W.

AU - Thorndike, E. H.

AU - Coan, T. E.

AU - Gao, Y. S.

AU - Liu, F.

AU - Artuso, M.

AU - Boulahouache, C.

AU - Blusk, S.

AU - Butt, J.

AU - Dorjkhaidav, O.

AU - Li, J.

AU - Menaa, N.

AU - Mountain, R.

AU - Nandakumar, R.

AU - Randrianarivony, K.

AU - Redjimi, R.

AU - Sia, R.

AU - Skwarnicki, T.

AU - Stone, S.

AU - Wang, J. C.

AU - Zhang, K.

AU - Csorna, S. E.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Dubrovin, M.

AU - Briere, R. A.

AU - Chen, G. P.

AU - Chen, J.

AU - Ferguson, T.

AU - Tatishvili, G.

AU - Vogel, H.

AU - Watkins, M. E.

AU - Rosner, J. L.

AU - Adam, N. E.

AU - Alexander, J. P.

AU - Berkelman, K.

AU - Cassel, D. G.

AU - Crede, V.

AU - Duboscq, J. E.

AU - Ecklund, K. M.

AU - Ehrlich, R.

AU - Fields, L.

AU - Galik, R. S.

AU - Gibbons, L.

AU - Gittelman, B.

AU - Gray, R.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hertz, D.

AU - Jones, C. D.

AU - Kandaswamy, J.

AU - Kreinick, D. L.

AU - Kuznetsov, V. E.

AU - Mahlke-Krüger, H.

AU - Meyer, T. O.

AU - Onyisi, P. U E

AU - Patterson, J. R.

AU - Peterson, D.

AU - Phillips, E. A.

AU - Pivarski, J.

AU - Riley, D.

AU - Ryd, A.

AU - Sadoff, A. J.

AU - Schwarthoff, H.

AU - Shi, X.

AU - Shepherd, M. R.

AU - Stroiney, S.

AU - Sun, W. M.

AU - Urner, D.

AU - Wilksen, T.

AU - Weaver, K. M.

AU - Weinberger, M.

AU - Athar, S. B.

AU - Avery, P.

AU - Breva-Newell, L.

AU - Patel, R.

AU - Potlia, V.

AU - Stoeck, H.

AU - Yelton, J.

PY - 2005/11/1

Y1 - 2005/11/1

N2 - The spin-singlet P-wave state of charmonium, hc(1P1), has been observed in the decay ψ(2S)→π0hc followed by hc→γηc. Inclusive and exclusive analyses of the M(hc) spectrum have been performed. Two complementary inclusive analyses select either a range of energies for the photon emitted in hc→γηc or a range of values of M(ηc). These analyses, consistent with one another within statistics, yield M(hc)=[3524.9±0.7(stat)±0.4(sys)]MeV/c2 and a product of the branching ratios Bψ(ψ(2S)→π0hc)×Bh(hc→γηc)= [3.5±1.0(stat)±0.7(sys)]×10-4. When the ηc is reconstructed in seven exclusive decay modes, 17.5±4.5 hc events are seen with an average mass M(hc)=[3523.6±0.9(stat)±0.5(sys)]MeV/c2, and BψBh=[5.3±1.5(stat)±1.0(sys)]×10-4. If combined, the inclusive and exclusive data samples yield an overall mass M(hc)=[3524. 4±0.6(stat)±0.4(sys)]MeV/c2 and product of branching ratios BψBh=[4.0±0.8(stat)±0.7(sys)]×10-4. The hc mass implies a P-wave hyperfine splitting ΔMHF(1P)M(13P)-M(11P1)=[1.0±0.6(stat) ±0.4(sys)]MeV/c2.

AB - The spin-singlet P-wave state of charmonium, hc(1P1), has been observed in the decay ψ(2S)→π0hc followed by hc→γηc. Inclusive and exclusive analyses of the M(hc) spectrum have been performed. Two complementary inclusive analyses select either a range of energies for the photon emitted in hc→γηc or a range of values of M(ηc). These analyses, consistent with one another within statistics, yield M(hc)=[3524.9±0.7(stat)±0.4(sys)]MeV/c2 and a product of the branching ratios Bψ(ψ(2S)→π0hc)×Bh(hc→γηc)= [3.5±1.0(stat)±0.7(sys)]×10-4. When the ηc is reconstructed in seven exclusive decay modes, 17.5±4.5 hc events are seen with an average mass M(hc)=[3523.6±0.9(stat)±0.5(sys)]MeV/c2, and BψBh=[5.3±1.5(stat)±1.0(sys)]×10-4. If combined, the inclusive and exclusive data samples yield an overall mass M(hc)=[3524. 4±0.6(stat)±0.4(sys)]MeV/c2 and product of branching ratios BψBh=[4.0±0.8(stat)±0.7(sys)]×10-4. The hc mass implies a P-wave hyperfine splitting ΔMHF(1P)M(13P)-M(11P1)=[1.0±0.6(stat) ±0.4(sys)]MeV/c2.

UR - http://www.scopus.com/inward/record.url?scp=29744461096&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=29744461096&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.72.092004

DO - 10.1103/PhysRevD.72.092004

M3 - Article

AN - SCOPUS:29744461096

SN - 1550-7998

VL - 72

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

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

IS - 9

M1 - 092004

ER -

Observation of the P11 state of charmonium

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