New results on the Roper resonance and the P11 partial wave

A. V. Sarantsev; M. Fuchs; M. Kotulla; U. Thoma; J. Ahrens; J. R M Annand; A. V. Anisovich; G. Anton; R. Bantes; O. Bartholomy; R. Beck; Yu Beloglazov; R. Castelijns; V. Crede; A. Ehmanns; J. Ernst; I. Fabry; H. Flemming; A. Fösel; Chr Funke; R. Gothe; A. Gridnev; E. Gutz; St Höffgen; I. Horn; J. Hößl; D. Hornidge; S. Janssen; J. Junkersfeld; H. Kalinowsky; F. Klein; E. Klempt; H. Koch; M. Konrad; B. Kopf; B. Krusche; J. Langheinrich; H. Löhner; I. Lopatin; J. Lotz; J. C. McGeorge; I. J D MacGregor; H. Matthäy; D. Menze; J. G. Messchendorp; V. Metag; V. A. Nikonov; D. Novinski; R. Novotny; M. Ostrick; H. van Pee; M. Pfeiffer; A. Radkov; G. Rosner; M. Rost; C. Schmidt; B. Schoch; G. Suft; V. Sumachev; T. Szczepanek; D. Walther; D. P. Watts; Chr Weinheimer

doi:10.1016/j.physletb.2007.11.055

New results on the Roper resonance and the P₁₁ partial wave

A. V. Sarantsev, M. Fuchs, M. Kotulla, U. Thoma, J. Ahrens, J. R M Annand, A. V. Anisovich, G. Anton, R. Bantes, O. Bartholomy, R. Beck, Yu Beloglazov, R. Castelijns, V. Crede, A. Ehmanns, J. Ernst, I. Fabry, H. Flemming, A. Fösel, Chr FunkeR. Gothe, A. Gridnev, E. Gutz, St Höffgen, I. Horn, J. Hößl, D. Hornidge, S. Janssen, J. Junkersfeld, H. Kalinowsky, F. Klein, E. Klempt, H. Koch, M. Konrad, B. Kopf, B. Krusche, J. Langheinrich, H. Löhner, I. Lopatin, J. Lotz, J. C. McGeorge, I. J D MacGregor, H. Matthäy, D. Menze, J. G. Messchendorp, V. Metag, V. A. Nikonov, D. Novinski, R. Novotny, M. Ostrick, H. van Pee, M. Pfeiffer, A. Radkov, G. Rosner, M. Rost, C. Schmidt, B. Schoch, G. Suft, V. Sumachev, T. Szczepanek, D. Walther, D. P. Watts, Chr Weinheimer

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Properties of the Roper resonance, the first scalar excitation of the nucleon, are determined. Pole positions and residues of the P₁₁ partial wave are studied in a combined analysis of pion- and photo-induced reactions. We find the Roper pole at {(1371 ± 7) - i (92 ± 10)} MeV and an elasticity of 0.61 ± 0.03. The largest decay coupling is found for the Nσ (σ = (π π)-S-wave). The analysis is based on new data on γ p → p π⁰ π⁰ for photons in the energy range from the two-pion threshold to 820 MeV from TAPS at Mainz and from 0.4 to 1.3 GeV from Crystal Barrel at Bonn and includes further data from other experiments. The partial wave analysis excludes the possibility that the Roper resonance is split into two states with different partial decay widths.

Original language	English
Pages (from-to)	94-100
Number of pages	7
Journal	Physics Letters B
Volume	659
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2007.11.055
Publication status	Published - 17 Jan 2008

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Sarantsev, A. V., Fuchs, M., Kotulla, M., Thoma, U., Ahrens, J., Annand, J. R. M., Anisovich, A. V., Anton, G., Bantes, R., Bartholomy, O., Beck, R., Beloglazov, Y., Castelijns, R., Crede, V., Ehmanns, A., Ernst, J., Fabry, I., Flemming, H., Fösel, A., ... Weinheimer, C. (2008). New results on the Roper resonance and the P₁₁ partial wave. Physics Letters B, 659(1-2), 94-100. https://doi.org/10.1016/j.physletb.2007.11.055

Sarantsev, A. V. ; Fuchs, M. ; Kotulla, M. ; Thoma, U. ; Ahrens, J. ; Annand, J. R M ; Anisovich, A. V. ; Anton, G. ; Bantes, R. ; Bartholomy, O. ; Beck, R. ; Beloglazov, Yu ; Castelijns, R. ; Crede, V. ; Ehmanns, A. ; Ernst, J. ; Fabry, I. ; Flemming, H. ; Fösel, A. ; Funke, Chr ; Gothe, R. ; Gridnev, A. ; Gutz, E. ; Höffgen, St ; Horn, I. ; Hößl, J. ; Hornidge, D. ; Janssen, S. ; Junkersfeld, J. ; Kalinowsky, H. ; Klein, F. ; Klempt, E. ; Koch, H. ; Konrad, M. ; Kopf, B. ; Krusche, B. ; Langheinrich, J. ; Löhner, H. ; Lopatin, I. ; Lotz, J. ; McGeorge, J. C. ; MacGregor, I. J D ; Matthäy, H. ; Menze, D. ; Messchendorp, J. G. ; Metag, V. ; Nikonov, V. A. ; Novinski, D. ; Novotny, R. ; Ostrick, M. ; van Pee, H. ; Pfeiffer, M. ; Radkov, A. ; Rosner, G. ; Rost, M. ; Schmidt, C. ; Schoch, B. ; Suft, G. ; Sumachev, V. ; Szczepanek, T. ; Walther, D. ; Watts, D. P. ; Weinheimer, Chr. / New results on the Roper resonance and the P₁₁ partial wave. In: Physics Letters B. 2008 ; Vol. 659, No. 1-2. pp. 94-100.

@article{bc4f1a871c284941a1b45678375cae4d,

title = "New results on the Roper resonance and the P11 partial wave",

abstract = "Properties of the Roper resonance, the first scalar excitation of the nucleon, are determined. Pole positions and residues of the P11 partial wave are studied in a combined analysis of pion- and photo-induced reactions. We find the Roper pole at {(1371 ± 7) - i (92 ± 10)} MeV and an elasticity of 0.61 ± 0.03. The largest decay coupling is found for the Nσ (σ = (π π)-S-wave). The analysis is based on new data on γ p → p π0 π0 for photons in the energy range from the two-pion threshold to 820 MeV from TAPS at Mainz and from 0.4 to 1.3 GeV from Crystal Barrel at Bonn and includes further data from other experiments. The partial wave analysis excludes the possibility that the Roper resonance is split into two states with different partial decay widths.",

author = "Sarantsev, {A. V.} and M. Fuchs and M. Kotulla and U. Thoma and J. Ahrens and Annand, {J. R M} and Anisovich, {A. V.} and G. Anton and R. Bantes and O. Bartholomy and R. Beck and Yu Beloglazov and R. Castelijns and V. Crede and A. Ehmanns and J. Ernst and I. Fabry and H. Flemming and A. F{\"o}sel and Chr Funke and R. Gothe and A. Gridnev and E. Gutz and St H{\"o}ffgen and I. Horn and J. H{\"o}{\ss}l and D. Hornidge and S. Janssen and J. Junkersfeld and H. Kalinowsky and F. Klein and E. Klempt and H. Koch and M. Konrad and B. Kopf and B. Krusche and J. Langheinrich and H. L{\"o}hner and I. Lopatin and J. Lotz and McGeorge, {J. C.} and MacGregor, {I. J D} and H. Matth{\"a}y and D. Menze and Messchendorp, {J. G.} and V. Metag and Nikonov, {V. A.} and D. Novinski and R. Novotny and M. Ostrick and {van Pee}, H. and M. Pfeiffer and A. Radkov and G. Rosner and M. Rost and C. Schmidt and B. Schoch and G. Suft and V. Sumachev and T. Szczepanek and D. Walther and Watts, {D. P.} and Chr Weinheimer",

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month = jan,

day = "17",

doi = "10.1016/j.physletb.2007.11.055",

language = "English",

volume = "659",

pages = "94--100",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

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Sarantsev, AV, Fuchs, M, Kotulla, M, Thoma, U, Ahrens, J, Annand, JRM, Anisovich, AV, Anton, G, Bantes, R, Bartholomy, O, Beck, R, Beloglazov, Y, Castelijns, R, Crede, V, Ehmanns, A, Ernst, J, Fabry, I, Flemming, H, Fösel, A, Funke, C, Gothe, R, Gridnev, A, Gutz, E, Höffgen, S, Horn, I, Hößl, J, Hornidge, D, Janssen, S, Junkersfeld, J, Kalinowsky, H, Klein, F, Klempt, E, Koch, H, Konrad, M, Kopf, B, Krusche, B, Langheinrich, J, Löhner, H, Lopatin, I, Lotz, J, McGeorge, JC, MacGregor, IJD, Matthäy, H, Menze, D, Messchendorp, JG, Metag, V, Nikonov, VA, Novinski, D, Novotny, R, Ostrick, M, van Pee, H, Pfeiffer, M, Radkov, A, Rosner, G, Rost, M, Schmidt, C, Schoch, B, Suft, G, Sumachev, V, Szczepanek, T, Walther, D, Watts, DP & Weinheimer, C 2008, 'New results on the Roper resonance and the P₁₁ partial wave', Physics Letters B, vol. 659, no. 1-2, pp. 94-100. https://doi.org/10.1016/j.physletb.2007.11.055

New results on the Roper resonance and the P₁₁ partial wave. / Sarantsev, A. V.; Fuchs, M.; Kotulla, M.; Thoma, U.; Ahrens, J.; Annand, J. R M; Anisovich, A. V.; Anton, G.; Bantes, R.; Bartholomy, O.; Beck, R.; Beloglazov, Yu; Castelijns, R.; Crede, V.; Ehmanns, A.; Ernst, J.; Fabry, I.; Flemming, H.; Fösel, A.; Funke, Chr; Gothe, R.; Gridnev, A.; Gutz, E.; Höffgen, St; Horn, I.; Hößl, J.; Hornidge, D.; Janssen, S.; Junkersfeld, J.; Kalinowsky, H.; Klein, F.; Klempt, E.; Koch, H.; Konrad, M.; Kopf, B.; Krusche, B.; Langheinrich, J.; Löhner, H.; Lopatin, I.; Lotz, J.; McGeorge, J. C.; MacGregor, I. J D; Matthäy, H.; Menze, D.; Messchendorp, J. G.; Metag, V.; Nikonov, V. A.; Novinski, D.; Novotny, R.; Ostrick, M.; van Pee, H.; Pfeiffer, M.; Radkov, A.; Rosner, G.; Rost, M.; Schmidt, C.; Schoch, B.; Suft, G.; Sumachev, V.; Szczepanek, T.; Walther, D.; Watts, D. P.; Weinheimer, Chr.

In: Physics Letters B, Vol. 659, No. 1-2, 17.01.2008, p. 94-100.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - New results on the Roper resonance and the P11 partial wave

AU - Sarantsev, A. V.

AU - Fuchs, M.

AU - Kotulla, M.

AU - Thoma, U.

AU - Ahrens, J.

AU - Annand, J. R M

AU - Anisovich, A. V.

AU - Anton, G.

AU - Bantes, R.

AU - Bartholomy, O.

AU - Beck, R.

AU - Beloglazov, Yu

AU - Castelijns, R.

AU - Crede, V.

AU - Ehmanns, A.

AU - Ernst, J.

AU - Fabry, I.

AU - Flemming, H.

AU - Fösel, A.

AU - Funke, Chr

AU - Gothe, R.

AU - Gridnev, A.

AU - Gutz, E.

AU - Höffgen, St

AU - Horn, I.

AU - Hößl, J.

AU - Hornidge, D.

AU - Janssen, S.

AU - Junkersfeld, J.

AU - Kalinowsky, H.

AU - Klein, F.

AU - Klempt, E.

AU - Koch, H.

AU - Konrad, M.

AU - Kopf, B.

AU - Krusche, B.

AU - Langheinrich, J.

AU - Löhner, H.

AU - Lopatin, I.

AU - Lotz, J.

AU - McGeorge, J. C.

AU - MacGregor, I. J D

AU - Matthäy, H.

AU - Menze, D.

AU - Messchendorp, J. G.

AU - Metag, V.

AU - Nikonov, V. A.

AU - Novinski, D.

AU - Novotny, R.

AU - Ostrick, M.

AU - van Pee, H.

AU - Pfeiffer, M.

AU - Radkov, A.

AU - Rosner, G.

AU - Rost, M.

AU - Schmidt, C.

AU - Schoch, B.

AU - Suft, G.

AU - Sumachev, V.

AU - Szczepanek, T.

AU - Walther, D.

AU - Watts, D. P.

AU - Weinheimer, Chr

PY - 2008/1/17

Y1 - 2008/1/17

N2 - Properties of the Roper resonance, the first scalar excitation of the nucleon, are determined. Pole positions and residues of the P11 partial wave are studied in a combined analysis of pion- and photo-induced reactions. We find the Roper pole at {(1371 ± 7) - i (92 ± 10)} MeV and an elasticity of 0.61 ± 0.03. The largest decay coupling is found for the Nσ (σ = (π π)-S-wave). The analysis is based on new data on γ p → p π0 π0 for photons in the energy range from the two-pion threshold to 820 MeV from TAPS at Mainz and from 0.4 to 1.3 GeV from Crystal Barrel at Bonn and includes further data from other experiments. The partial wave analysis excludes the possibility that the Roper resonance is split into two states with different partial decay widths.

AB - Properties of the Roper resonance, the first scalar excitation of the nucleon, are determined. Pole positions and residues of the P11 partial wave are studied in a combined analysis of pion- and photo-induced reactions. We find the Roper pole at {(1371 ± 7) - i (92 ± 10)} MeV and an elasticity of 0.61 ± 0.03. The largest decay coupling is found for the Nσ (σ = (π π)-S-wave). The analysis is based on new data on γ p → p π0 π0 for photons in the energy range from the two-pion threshold to 820 MeV from TAPS at Mainz and from 0.4 to 1.3 GeV from Crystal Barrel at Bonn and includes further data from other experiments. The partial wave analysis excludes the possibility that the Roper resonance is split into two states with different partial decay widths.

UR - http://www.scopus.com/inward/record.url?scp=37449004384&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2007.11.055

DO - 10.1016/j.physletb.2007.11.055

M3 - Article

AN - SCOPUS:37449004384

VL - 659

SP - 94

EP - 100

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1-2

ER -