Study of $f_{0}$ decays into four neutral pions

A simultaneous analysis of two different 5 pi final states from pN annihilation at rest is used to study the decays of isoscalar 0/sup ++/ states into 4 pi /sup 0/. The data demand two scalar states, the f/sub 0/(1370) with m=1395+or-40 MeV/c/sup 2/, Gamma =275+or-55 MeV/c /sup 2/ and the f/sub 0/(1...

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Detalles Bibliográficos
Autores principales: Abele, A, Adomeit, J, Amsler, Claude, Baker, C A, Barnett, B M, Batty, C J, Benayoun, M, Bischoff, S, Blüm, H P, Braune, K, Case, T, Credé, V, Crowe, K M, Degener, T F, Doser, Michael, Dünnweber, W, Engelhardt, D, Faessler, M A, Giarritta, P, Haddock, R P, Heinsius, F H, Heinzelmann, M, Herbstrith, A, Hessey, N P, Hidas, P, Holtzhaussen, C, Jamnik, D, Kalinowsky, H, Kammel, P, Kisiel, J, Klempt, E, Koch, H, Kunze, M, Kurilla, U, Lakata, M T, Landua, Rolf, Matthäy, H, Meyer, C A, Meyer-Wildhagen, F, Montanet, Lucien, Ouared, R, Peters, K, Pick, B, Ratajczak, M, Regenfus, C, Röthel, W, Spanier, S M, Stöck, H, Strohbusch, U, Suffert, Martin, Suh, J S, Thoma, U, Tischhäuser, M, Uman, I, Wallis-Plachner, S, Walther, D, Wiedner, U, Wittmack, K
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1007/s100520100601
http://cds.cern.ch/record/506652
Descripción
Sumario:A simultaneous analysis of two different 5 pi final states from pN annihilation at rest is used to study the decays of isoscalar 0/sup ++/ states into 4 pi /sup 0/. The data demand two scalar states, the f/sub 0/(1370) with m=1395+or-40 MeV/c/sup 2/, Gamma =275+or-55 MeV/c /sup 2/ and the f/sub 0/(1500) with mass and width compatible with previous findings. Apart from the dominant scalar intensity, the pi (1300) plays an important role in the 5 pi dynamics. We find a mass of m=1375+or-40 MeV/c/sup 2/ and a width of Gamma =268+or-50 MeV/c /sup 2/ with a dominant decay into rho pi . The ( pi pi )/sub s/ pi - decay of the pi (1300) is less than 15% of its rho pi decay. (33 refs).

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