Roper resonance - Its static and dynamic properties from single- and double-pion production

CELSIUS-WASA Collaboration; T. Skorodko; M. Bashkanov; H. Clement; E. Doroshkevich; O. Khakimova; F. Kren; G. J. Wagner

doi:10.1016/j.ppnp.2007.12.030

Roper resonance - Its static and dynamic properties from single- and double-pion production

CELSIUS-WASA Collaboration, T. Skorodko, M. Bashkanov, H. Clement^*, E. Doroshkevich, O. Khakimova, F. Kren, G. J. Wagner

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract / Description of output

In most investigations the Roper resonance is sensed only very indirectly via complex partial wave analyses. We find indications for its excitation in the pp -> np pi(+) reaction, where some resonance-like structure is observed in the invariant n pi(+) mass spectrum at M approximate to 1360 MeV with a width of 150 MeV. The values fit very favorably to the most recent phase shift results as well as to the observations at BES. In near-threshold two-pion production pp -> pp pi(0)pi(0) the Roper excitation and its subsequent decay into N pi pi is the only dominant process. There we find its decay into the N sigma channel as the dominating decay process - in favor of a monopole nature of the Roper excitation. (c) 2007 Elsevier B. V. All rights reserved.

Original language	English
Title of host publication	PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 61, NO 1
Editors	A Faessler
Publisher	Elsevier
Pages	168-169
Number of pages	2
ISBN (Print)	*****************
DOIs	https://doi.org/10.1016/j.ppnp.2007.12.030
Publication status	Published - 1 Jan 2008
Event	International Workshop on Nuclear Physics/29th Course on Quarks in Hadrons and Nuclei - Erice, Italy Duration: 16 Sept 2007 → 24 Sept 2007

Publication series

Name	Progress in Particle and Nuclear Physics
Publisher	ELSEVIER SCIENCE BV
Volume	61
ISSN (Print)	0146-6410

Conference

Conference	International Workshop on Nuclear Physics/29th Course on Quarks in Hadrons and Nuclei
Country/Territory	Italy
City	Erice
Period	16/09/07 → 24/09/07

Keywords / Materials (for Non-textual outputs)

Roper resonance
decay properties
monopole nature
NUCLEON

Access to Document

10.1016/j.ppnp.2007.12.030

Cite this

CELSIUS-WASA Collaboration, Skorodko, T., Bashkanov, M., Clement, H., Doroshkevich, E., Khakimova, O., Kren, F., & Wagner, G. J. (2008). Roper resonance - Its static and dynamic properties from single- and double-pion production. In A. Faessler (Ed.), PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 61, NO 1 (pp. 168-169). (Progress in Particle and Nuclear Physics; Vol. 61). Elsevier. https://doi.org/10.1016/j.ppnp.2007.12.030

@inbook{1b26ef816f0649c0a8d564c6d2b5e2e0,

title = "Roper resonance - Its static and dynamic properties from single- and double-pion production",

abstract = "In most investigations the Roper resonance is sensed only very indirectly via complex partial wave analyses. We find indications for its excitation in the pp -> np pi(+) reaction, where some resonance-like structure is observed in the invariant n pi(+) mass spectrum at M approximate to 1360 MeV with a width of 150 MeV. The values fit very favorably to the most recent phase shift results as well as to the observations at BES. In near-threshold two-pion production pp -> pp pi(0)pi(0) the Roper excitation and its subsequent decay into N pi pi is the only dominant process. There we find its decay into the N sigma channel as the dominating decay process - in favor of a monopole nature of the Roper excitation. (c) 2007 Elsevier B. V. All rights reserved.",

keywords = "Roper resonance, decay properties, monopole nature, NUCLEON",

author = "{CELSIUS-WASA Collaboration} and T. Skorodko and M. Bashkanov and H. Clement and E. Doroshkevich and O. Khakimova and F. Kren and Wagner, {G. J.}",

year = "2008",

month = jan,

day = "1",

doi = "10.1016/j.ppnp.2007.12.030",

language = "English",

isbn = "*****************",

series = "Progress in Particle and Nuclear Physics",

publisher = "Elsevier",

pages = "168--169",

editor = "A Faessler",

booktitle = "PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 61, NO 1",

address = "Netherlands",

note = "International Workshop on Nuclear Physics/29th Course on Quarks in Hadrons and Nuclei ; Conference date: 16-09-2007 Through 24-09-2007",

}

CELSIUS-WASA Collaboration, Skorodko, T, Bashkanov, M, Clement, H, Doroshkevich, E, Khakimova, O, Kren, F & Wagner, GJ 2008, Roper resonance - Its static and dynamic properties from single- and double-pion production. in A Faessler (ed.), PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 61, NO 1. Progress in Particle and Nuclear Physics, vol. 61, Elsevier, pp. 168-169, International Workshop on Nuclear Physics/29th Course on Quarks in Hadrons and Nuclei, Erice, Italy, 16/09/07. https://doi.org/10.1016/j.ppnp.2007.12.030

Roper resonance - Its static and dynamic properties from single- and double-pion production. / CELSIUS-WASA Collaboration; Skorodko, T.; Bashkanov, M. et al.
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 61, NO 1. ed. / A Faessler. Elsevier, 2008. p. 168-169 (Progress in Particle and Nuclear Physics; Vol. 61).

Research output: Chapter in Book/Report/Conference proceeding › Chapter

TY - CHAP

T1 - Roper resonance - Its static and dynamic properties from single- and double-pion production

AU - CELSIUS-WASA Collaboration

AU - Skorodko, T.

AU - Bashkanov, M.

AU - Clement, H.

AU - Doroshkevich, E.

AU - Khakimova, O.

AU - Kren, F.

AU - Wagner, G. J.

PY - 2008/1/1

Y1 - 2008/1/1

N2 - In most investigations the Roper resonance is sensed only very indirectly via complex partial wave analyses. We find indications for its excitation in the pp -> np pi(+) reaction, where some resonance-like structure is observed in the invariant n pi(+) mass spectrum at M approximate to 1360 MeV with a width of 150 MeV. The values fit very favorably to the most recent phase shift results as well as to the observations at BES. In near-threshold two-pion production pp -> pp pi(0)pi(0) the Roper excitation and its subsequent decay into N pi pi is the only dominant process. There we find its decay into the N sigma channel as the dominating decay process - in favor of a monopole nature of the Roper excitation. (c) 2007 Elsevier B. V. All rights reserved.

AB - In most investigations the Roper resonance is sensed only very indirectly via complex partial wave analyses. We find indications for its excitation in the pp -> np pi(+) reaction, where some resonance-like structure is observed in the invariant n pi(+) mass spectrum at M approximate to 1360 MeV with a width of 150 MeV. The values fit very favorably to the most recent phase shift results as well as to the observations at BES. In near-threshold two-pion production pp -> pp pi(0)pi(0) the Roper excitation and its subsequent decay into N pi pi is the only dominant process. There we find its decay into the N sigma channel as the dominating decay process - in favor of a monopole nature of the Roper excitation. (c) 2007 Elsevier B. V. All rights reserved.

KW - Roper resonance

KW - decay properties

KW - monopole nature

KW - NUCLEON

U2 - 10.1016/j.ppnp.2007.12.030

DO - 10.1016/j.ppnp.2007.12.030

M3 - Chapter

SN - *****************

T3 - Progress in Particle and Nuclear Physics

SP - 168

EP - 169

BT - PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 61, NO 1

A2 - Faessler, A

PB - Elsevier

T2 - International Workshop on Nuclear Physics/29th Course on Quarks in Hadrons and Nuclei

Y2 - 16 September 2007 through 24 September 2007

ER -

CELSIUS-WASA Collaboration, Skorodko T, Bashkanov M, Clement H, Doroshkevich E, Khakimova O et al. Roper resonance - Its static and dynamic properties from single- and double-pion production. In Faessler A, editor, PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 61, NO 1. Elsevier. 2008. p. 168-169. (Progress in Particle and Nuclear Physics). doi: 10.1016/j.ppnp.2007.12.030

Roper resonance - Its static and dynamic properties from single- and double-pion production

Abstract / Description of output

Publication series

Conference

Keywords / Materials (for Non-textual outputs)

Access to Document

Fingerprint

Cite this