E decays to ηππ in pp annihilation at rest

C. Amsler, D. S. Armstrong, C. A. Baker, B. M. Barnett, C. J. Batty, M. Benayoun, K. Beuchert, P. Birien, P. Blüm, R. Bossingham, K. Braune, J. Brose, D. V. Bugg, T. Case, A. R. Cooper, O. Cramer, K. M. Crowe, T. Degener, H. P. Dietz, N. Djaoshvili & 62 others S. v. Dombrowski, M. Doser, W. Dünnweber, D. Engelhardt, M. Englert, M. A. Faessler, P. Giarritta, R. Hackmann, R. P. Haddock, F. H. Heinsius, M. Herz, N. P. Hessey, P. Hidas, C. Holzhaußen, P. Illinger, D. Jamnik, H. Kalinowsky, B. Kalteyer, B. Kämmle, T. Kiel, J. Kisiel, E. Klempt, H. Koch, C. Kolo, M. Kunze, M. Lakata, R. Landua, J. Lüdemann, H. Matthäy, R. McCrady, J. P. Merlo, C. A. Meyer, L. Montanet, A. Noble, R. Ouared, F. Ould-Saada, K. Peters, C. N. Pinder, G. Pinter, S. Ravndal, C. Regenfus, E. Schäfer, P. Schmidt, M. Schütrumpf, I. Scott, R. Seibert, S. Spanier, H. Stöck, C. Straßburger, U. Strohbusch, M. Suffert, U. Thoma, M. Tischhäuser, D. Urner, C. Völcker, F. Walter, D. Walther, U. Wiedner, N. Winter, J. Zoll, B. S. Zou, Č Zupančič

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Abstract

We have observed the ηπ+π- and ηπ0π0 decay modes of the E meson in pp annihilation at rest into π+π-π0π0η. The mass and width of the E meson are 1409 ± 3 and 86 ± 10 MeV. The production and decay branching ratio is B(pp → Eππ)B(E → ηππ) = (3.3 ± 1.0) × 10-3. With a spin-parity analysis we determine that JP = 0-. The observation of the ηπ0π0 decay mode establishes that E is isoscalar (C = +1). We find that E decays to η(ππ)s (where (ππ)s is an S-wave dipion) and πa0(980)(→ πη) with a relative branching ratio of (78 ± 16) %. Using the KKπ production and decay branching ratio measured earlier we determine that B[E → KKπ] B[E → ηππ] = 0.61 ± 0.19. A comparison with observations in radiative J Ψ decays suggests that E and ι η(1416) are identical.

Original languageEnglish
Pages (from-to)389-398
Number of pages10
JournalPhysics Letters B
Volume358
Issue number3-4
DOIs
Publication statusPublished - Sep 28 1995

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decay
mesons
S waves
parity

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  • Nuclear and High Energy Physics

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Amsler, C., Armstrong, D. S., Baker, C. A., Barnett, B. M., Batty, C. J., Benayoun, M., ... Zupančič, Č. (1995). E decays to ηππ in pp annihilation at rest. Physics Letters B, 358(3-4), 389-398. https://doi.org/10.1016/0370-2693(95)01040-W

E decays to ηππ in pp annihilation at rest. / Amsler, C.; Armstrong, D. S.; Baker, C. A.; Barnett, B. M.; Batty, C. J.; Benayoun, M.; Beuchert, K.; Birien, P.; Blüm, P.; Bossingham, R.; Braune, K.; Brose, J.; Bugg, D. V.; Case, T.; Cooper, A. R.; Cramer, O.; Crowe, K. M.; Degener, T.; Dietz, H. P.; Djaoshvili, N.; Dombrowski, S. v.; Doser, M.; Dünnweber, W.; Engelhardt, D.; Englert, M.; Faessler, M. A.; Giarritta, P.; Hackmann, R.; Haddock, R. P.; Heinsius, F. H.; Herz, M.; Hessey, N. P.; Hidas, P.; Holzhaußen, C.; Illinger, P.; Jamnik, D.; Kalinowsky, H.; Kalteyer, B.; Kämmle, B.; Kiel, T.; Kisiel, J.; Klempt, E.; Koch, H.; Kolo, C.; Kunze, M.; Lakata, M.; Landua, R.; Lüdemann, J.; Matthäy, H.; McCrady, R.; Merlo, J. P.; Meyer, C. A.; Montanet, L.; Noble, A.; Ouared, R.; Ould-Saada, F.; Peters, K.; Pinder, C. N.; Pinter, G.; Ravndal, S.; Regenfus, C.; Schäfer, E.; Schmidt, P.; Schütrumpf, M.; Scott, I.; Seibert, R.; Spanier, S.; Stöck, H.; Straßburger, C.; Strohbusch, U.; Suffert, M.; Thoma, U.; Tischhäuser, M.; Urner, D.; Völcker, C.; Walter, F.; Walther, D.; Wiedner, U.; Winter, N.; Zoll, J.; Zou, B. S.; Zupančič, Č.

In: Physics Letters B, Vol. 358, No. 3-4, 28.09.1995, p. 389-398.

Research output: Contribution to journalArticle

Amsler, C, Armstrong, DS, Baker, CA, Barnett, BM, Batty, CJ, Benayoun, M, Beuchert, K, Birien, P, Blüm, P, Bossingham, R, Braune, K, Brose, J, Bugg, DV, Case, T, Cooper, AR, Cramer, O, Crowe, KM, Degener, T, Dietz, HP, Djaoshvili, N, Dombrowski, SV, Doser, M, Dünnweber, W, Engelhardt, D, Englert, M, Faessler, MA, Giarritta, P, Hackmann, R, Haddock, RP, Heinsius, FH, Herz, M, Hessey, NP, Hidas, P, Holzhaußen, C, Illinger, P, Jamnik, D, Kalinowsky, H, Kalteyer, B, Kämmle, B, Kiel, T, Kisiel, J, Klempt, E, Koch, H, Kolo, C, Kunze, M, Lakata, M, Landua, R, Lüdemann, J, Matthäy, H, McCrady, R, Merlo, JP, Meyer, CA, Montanet, L, Noble, A, Ouared, R, Ould-Saada, F, Peters, K, Pinder, CN, Pinter, G, Ravndal, S, Regenfus, C, Schäfer, E, Schmidt, P, Schütrumpf, M, Scott, I, Seibert, R, Spanier, S, Stöck, H, Straßburger, C, Strohbusch, U, Suffert, M, Thoma, U, Tischhäuser, M, Urner, D, Völcker, C, Walter, F, Walther, D, Wiedner, U, Winter, N, Zoll, J, Zou, BS & Zupančič, Č 1995, 'E decays to ηππ in pp annihilation at rest', Physics Letters B, vol. 358, no. 3-4, pp. 389-398. https://doi.org/10.1016/0370-2693(95)01040-W
Amsler C, Armstrong DS, Baker CA, Barnett BM, Batty CJ, Benayoun M et al. E decays to ηππ in pp annihilation at rest. Physics Letters B. 1995 Sep 28;358(3-4):389-398. https://doi.org/10.1016/0370-2693(95)01040-W
Amsler, C. ; Armstrong, D. S. ; Baker, C. A. ; Barnett, B. M. ; Batty, C. J. ; Benayoun, M. ; Beuchert, K. ; Birien, P. ; Blüm, P. ; Bossingham, R. ; Braune, K. ; Brose, J. ; Bugg, D. V. ; Case, T. ; Cooper, A. R. ; Cramer, O. ; Crowe, K. M. ; Degener, T. ; Dietz, H. P. ; Djaoshvili, N. ; Dombrowski, S. v. ; Doser, M. ; Dünnweber, W. ; Engelhardt, D. ; Englert, M. ; Faessler, M. A. ; Giarritta, P. ; Hackmann, R. ; Haddock, R. P. ; Heinsius, F. H. ; Herz, M. ; Hessey, N. P. ; Hidas, P. ; Holzhaußen, C. ; Illinger, P. ; Jamnik, D. ; Kalinowsky, H. ; Kalteyer, B. ; Kämmle, B. ; Kiel, T. ; Kisiel, J. ; Klempt, E. ; Koch, H. ; Kolo, C. ; Kunze, M. ; Lakata, M. ; Landua, R. ; Lüdemann, J. ; Matthäy, H. ; McCrady, R. ; Merlo, J. P. ; Meyer, C. A. ; Montanet, L. ; Noble, A. ; Ouared, R. ; Ould-Saada, F. ; Peters, K. ; Pinder, C. N. ; Pinter, G. ; Ravndal, S. ; Regenfus, C. ; Schäfer, E. ; Schmidt, P. ; Schütrumpf, M. ; Scott, I. ; Seibert, R. ; Spanier, S. ; Stöck, H. ; Straßburger, C. ; Strohbusch, U. ; Suffert, M. ; Thoma, U. ; Tischhäuser, M. ; Urner, D. ; Völcker, C. ; Walter, F. ; Walther, D. ; Wiedner, U. ; Winter, N. ; Zoll, J. ; Zou, B. S. ; Zupančič, Č. / E decays to ηππ in pp annihilation at rest. In: Physics Letters B. 1995 ; Vol. 358, No. 3-4. pp. 389-398.
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title = "E decays to ηππ in pp annihilation at rest",
abstract = "We have observed the ηπ+π- and ηπ0π0 decay modes of the E meson in pp annihilation at rest into π+π-π0π0η. The mass and width of the E meson are 1409 ± 3 and 86 ± 10 MeV. The production and decay branching ratio is B(pp → Eππ)B(E → ηππ) = (3.3 ± 1.0) × 10-3. With a spin-parity analysis we determine that JP = 0-. The observation of the ηπ0π0 decay mode establishes that E is isoscalar (C = +1). We find that E decays to η(ππ)s (where (ππ)s is an S-wave dipion) and πa0(980)(→ πη) with a relative branching ratio of (78 ± 16) {\%}. Using the KKπ production and decay branching ratio measured earlier we determine that B[E → KKπ] B[E → ηππ] = 0.61 ± 0.19. A comparison with observations in radiative J Ψ decays suggests that E and ι η(1416) are identical.",
author = "C. Amsler and Armstrong, {D. S.} and Baker, {C. A.} and Barnett, {B. M.} and Batty, {C. J.} and M. Benayoun and K. Beuchert and P. Birien and P. Bl{\"u}m and R. Bossingham and K. Braune and J. Brose and Bugg, {D. V.} and T. Case and Cooper, {A. R.} and O. Cramer and Crowe, {K. M.} and T. Degener and Dietz, {H. P.} and N. Djaoshvili and Dombrowski, {S. v.} and M. Doser and W. D{\"u}nnweber and D. Engelhardt and M. Englert and Faessler, {M. A.} and P. Giarritta and R. Hackmann and Haddock, {R. P.} and Heinsius, {F. H.} and M. Herz and Hessey, {N. P.} and P. Hidas and C. Holzhau{\ss}en and P. Illinger and D. Jamnik and H. Kalinowsky and B. Kalteyer and B. K{\"a}mmle and T. Kiel and J. Kisiel and E. Klempt and H. Koch and C. Kolo and M. Kunze and M. Lakata and R. Landua and J. L{\"u}demann and H. Matth{\"a}y and R. McCrady and Merlo, {J. P.} and Meyer, {C. A.} and L. Montanet and A. Noble and R. Ouared and F. Ould-Saada and K. Peters and Pinder, {C. N.} and G. Pinter and S. Ravndal and C. Regenfus and E. Sch{\"a}fer and P. Schmidt and M. Sch{\"u}trumpf and I. Scott and R. Seibert and S. Spanier and H. St{\"o}ck and C. Stra{\ss}burger and U. Strohbusch and M. Suffert and U. Thoma and M. Tischh{\"a}user and D. Urner and C. V{\"o}lcker and F. Walter and D. Walther and U. Wiedner and N. Winter and J. Zoll and Zou, {B. S.} and Č Zupančič",
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language = "English",
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TY - JOUR

T1 - E decays to ηππ in pp annihilation at rest

AU - Amsler, C.

AU - Armstrong, D. S.

AU - Baker, C. A.

AU - Barnett, B. M.

AU - Batty, C. J.

AU - Benayoun, M.

AU - Beuchert, K.

AU - Birien, P.

AU - Blüm, P.

AU - Bossingham, R.

AU - Braune, K.

AU - Brose, J.

AU - Bugg, D. V.

AU - Case, T.

AU - Cooper, A. R.

AU - Cramer, O.

AU - Crowe, K. M.

AU - Degener, T.

AU - Dietz, H. P.

AU - Djaoshvili, N.

AU - Dombrowski, S. v.

AU - Doser, M.

AU - Dünnweber, W.

AU - Engelhardt, D.

AU - Englert, M.

AU - Faessler, M. A.

AU - Giarritta, P.

AU - Hackmann, R.

AU - Haddock, R. P.

AU - Heinsius, F. H.

AU - Herz, M.

AU - Hessey, N. P.

AU - Hidas, P.

AU - Holzhaußen, C.

AU - Illinger, P.

AU - Jamnik, D.

AU - Kalinowsky, H.

AU - Kalteyer, B.

AU - Kämmle, B.

AU - Kiel, T.

AU - Kisiel, J.

AU - Klempt, E.

AU - Koch, H.

AU - Kolo, C.

AU - Kunze, M.

AU - Lakata, M.

AU - Landua, R.

AU - Lüdemann, J.

AU - Matthäy, H.

AU - McCrady, R.

AU - Merlo, J. P.

AU - Meyer, C. A.

AU - Montanet, L.

AU - Noble, A.

AU - Ouared, R.

AU - Ould-Saada, F.

AU - Peters, K.

AU - Pinder, C. N.

AU - Pinter, G.

AU - Ravndal, S.

AU - Regenfus, C.

AU - Schäfer, E.

AU - Schmidt, P.

AU - Schütrumpf, M.

AU - Scott, I.

AU - Seibert, R.

AU - Spanier, S.

AU - Stöck, H.

AU - Straßburger, C.

AU - Strohbusch, U.

AU - Suffert, M.

AU - Thoma, U.

AU - Tischhäuser, M.

AU - Urner, D.

AU - Völcker, C.

AU - Walter, F.

AU - Walther, D.

AU - Wiedner, U.

AU - Winter, N.

AU - Zoll, J.

AU - Zou, B. S.

AU - Zupančič, Č

PY - 1995/9/28

Y1 - 1995/9/28

N2 - We have observed the ηπ+π- and ηπ0π0 decay modes of the E meson in pp annihilation at rest into π+π-π0π0η. The mass and width of the E meson are 1409 ± 3 and 86 ± 10 MeV. The production and decay branching ratio is B(pp → Eππ)B(E → ηππ) = (3.3 ± 1.0) × 10-3. With a spin-parity analysis we determine that JP = 0-. The observation of the ηπ0π0 decay mode establishes that E is isoscalar (C = +1). We find that E decays to η(ππ)s (where (ππ)s is an S-wave dipion) and πa0(980)(→ πη) with a relative branching ratio of (78 ± 16) %. Using the KKπ production and decay branching ratio measured earlier we determine that B[E → KKπ] B[E → ηππ] = 0.61 ± 0.19. A comparison with observations in radiative J Ψ decays suggests that E and ι η(1416) are identical.

AB - We have observed the ηπ+π- and ηπ0π0 decay modes of the E meson in pp annihilation at rest into π+π-π0π0η. The mass and width of the E meson are 1409 ± 3 and 86 ± 10 MeV. The production and decay branching ratio is B(pp → Eππ)B(E → ηππ) = (3.3 ± 1.0) × 10-3. With a spin-parity analysis we determine that JP = 0-. The observation of the ηπ0π0 decay mode establishes that E is isoscalar (C = +1). We find that E decays to η(ππ)s (where (ππ)s is an S-wave dipion) and πa0(980)(→ πη) with a relative branching ratio of (78 ± 16) %. Using the KKπ production and decay branching ratio measured earlier we determine that B[E → KKπ] B[E → ηππ] = 0.61 ± 0.19. A comparison with observations in radiative J Ψ decays suggests that E and ι η(1416) are identical.

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U2 - 10.1016/0370-2693(95)01040-W

DO - 10.1016/0370-2693(95)01040-W

M3 - Article

VL - 358

SP - 389

EP - 398

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

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

SN - 0370-2693

IS - 3-4

ER -