Measurement of the Ξ0 → Λγ decay asymmetry and branching fraction

A. Lai; D. Marras; A. Bevan; R. S. Dosanjh; T. J. Gershon; B. Hay; G. E. Kalmus; C. Lazzeroni; D. J. Munday; E. Olaiya; M. A. Parker; T. O. White; S. A. Wotton; G. Barr; G. Bocquet; A. Ceccucci; T. Cuhadar-Dönszelmann; D. Cundy; G. D'Agostini; N. Doble; V. Falaleev; L. Gatignon; A. Gonidec; B. Gorini; G. Govi; P. Grafström; W. Kubischta; A. Lacourt; A. Norton; S. Palestini; B. Panzer-Steindel; H. Taureg; M. Velasco; H. Wahl; C. Cheshkov; A. Gaponenko; P. Hristov; V. Kekelidze; D. Madigojine; N. Molokanova; Y. Potrebenikov; G. Tatishvili; A. Tkatchev; A. Zinchenko; I. Knowles; V. Martin; R. Sacco; A. Walker; M. Contalbrigo; P. Dalpiaz; J. Duclos; P. L. Frabetti; A. Gianoli; M. Martini; F. Petrucci; M. Savrié; A. Bizzeti; M. Calvetti; G. Collazuol; G. Graziani; E. Iacopini; M. Lenti; F. Martelli; M. Veltri; H. G. Becker; K. Eppard; M. Eppard; H. Fox; A. Kalter; K. Kleinknecht; U. Koch; L. Köpke; P. Lopes da Silva; P. Marouelli; I. Pellmann; A. Peters; B. Renk; S. A. Schmidt; V. Schönharting; Y. Schué; R. Wanke; A. Winhart; M. Wittgen; J. C. Chollet; L. Fayard; L. Iconomidou-Fayard; J. Ocariz; G. Unal; I. Wingerter-Seez; G. Anzivino; P. Cenci; E. Imbergamo; P. Lubrano; A. Mestvirishvili; A. Nappi; M. Pepe; M. Piccini; L. Bertanza; R. Carosi; R. Casali; C. Cerri; M. Cirilli; F. Costantini; R. Fantechi; S. Giudici; I. Mannelli; G. Pierazzini; M. Sozzi; J. B. Cheze; J. Cogan; M. de Beer; P. Debu; A. Formica; R. Granier de Cassagnac; E. Mazzucato; B. Peyaud; R. Turlay; B. Vallage; M. Holder; A. Maier; M. Ziolkowski; R. Arcidiacono; C. Biino; N. Cartiglia; R. Guida; F. Marchetto; E. Menichetti; N. Pastrone; J. Nassalski; E. Rondio; M. Szleper; W. Wislicki; S. Wronka; H. Dibon; G. Fischer; M. Jeitler; M. Markytan; I. Mikulec; G. Neuhofer; M. Pernicka; A. Taurok; L. Widhalm

doi:10.1016/j.physletb.2004.01.041

Measurement of the Ξ⁰ → Λγ decay asymmetry and branching fraction

A. Lai
, D. Marras
, A. Bevan
, R. S. Dosanjh
, T. J. Gershon
, B. Hay
, G. E. Kalmus
, C. Lazzeroni
, D. J. Munday
, E. Olaiya
, M. A. Parker
, T. O. White
, S. A. Wotton
, G. Barr
, G. Bocquet
, A. Ceccucci
, T. Cuhadar-Dönszelmann
, D. Cundy
, G. D'Agostini
, N. Doble

V. Falaleev, L. Gatignon, A. Gonidec, B. Gorini, G. Govi, P. Grafström, W. Kubischta, A. Lacourt, A. Norton, S. Palestini, B. Panzer-Steindel, H. Taureg, M. Velasco, H. Wahl, C. Cheshkov, A. Gaponenko, P. Hristov, V. Kekelidze, D. Madigojine, N. Molokanova, Y. Potrebenikov, G. Tatishvili, A. Tkatchev, A. Zinchenko, I. Knowles, V. Martin, R. Sacco, A. Walker, M. Contalbrigo, P. Dalpiaz, J. Duclos, P. L. Frabetti, A. Gianoli, M. Martini, F. Petrucci, M. Savrié, A. Bizzeti, M. Calvetti, G. Collazuol, G. Graziani, E. Iacopini, M. Lenti, F. Martelli, M. Veltri, H. G. Becker, K. Eppard, M. Eppard, H. Fox, A. Kalter, K. Kleinknecht, U. Koch, L. Köpke, P. Lopes da Silva, P. Marouelli, I. Pellmann, A. Peters, B. Renk, S. A. Schmidt, V. Schönharting, Y. Schué, R. Wanke, A. Winhart, M. Wittgen, J. C. Chollet, L. Fayard, L. Iconomidou-Fayard, J. Ocariz, G. Unal, I. Wingerter-Seez, G. Anzivino, P. Cenci, E. Imbergamo, P. Lubrano, A. Mestvirishvili, A. Nappi, M. Pepe, M. Piccini, L. Bertanza, R. Carosi, R. Casali, C. Cerri, M. Cirilli, F. Costantini, R. Fantechi, S. Giudici, I. Mannelli, G. Pierazzini, M. Sozzi, J. B. Cheze, J. Cogan, M. de Beer, P. Debu, A. Formica, R. Granier de Cassagnac, E. Mazzucato, B. Peyaud, R. Turlay, B. Vallage, M. Holder, A. Maier, M. Ziolkowski, R. Arcidiacono, C. Biino, N. Cartiglia, R. Guida, F. Marchetto, E. Menichetti, N. Pastrone, J. Nassalski, E. Rondio, M. Szleper, W. Wislicki, S. Wronka, H. Dibon, G. Fischer, M. Jeitler, M. Markytan, I. Mikulec, G. Neuhofer, M. Pernicka, A. Taurok, L. Widhalm

Universitá di Cagliari
University of Cambridge
CCLRC Rutherford Appleton Laboratory
European Organization for Nuclear Research
Ev-K2-CNR Committee
Scuola Normale Superiore di Pisa
Northwestern University
University of Ferrara
Joint Institute for Nuclear Research, Dubna
Carnegie Mellon University
University of Edinburgh
Université Paris-Sud
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
University of Modena and Reggio Emilia
Institut Pierre Simon Laplace, CNRS and CEA
University of Urbino Carlo Bo
Johannes Gutenberg University
c/o DESY
Stanford Linear Accelerator Center
INFN Sezione di Perugia
Universität Siegen
INFN Sezione di Torino
Soltan Institute for Nuclear Studies
Institut für Hochenergiephysik

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

11 Citations (Scopus)

Résumé

In data taken with the NA48 experiment at the CERN SPS in 1999, 730 candidates of the weak radiative hyperon decay Ξ⁰→Λγ have been found with an estimated background of 58±8 events. From these events the Ξ⁰→Λγ decay asymmetry has been determined to α(Ξ⁰→Λγ)=-0.78±0.18_stat±0.06 _syst, which is the first evidence of a decay asymmetry in Ξ ⁰→Λγ. The branching fraction of the decay has been measured to be Br(Ξ⁰→Λγ)=(1.16±0.05 _stat±0.06_syst)×10^-3.

langue originale	Anglais
Pages (de - à)	251-259
Nombre de pages	9
journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	584
Numéro de publication	3-4
Les DOIs	https://doi.org/10.1016/j.physletb.2004.01.041
état	Publié - 1 avr. 2004
Modification externe	Oui

Accès au document

10.1016/j.physletb.2004.01.041

Contient cette citation

Lai, A., Marras, D., Bevan, A., Dosanjh, R. S., Gershon, T. J., Hay, B., Kalmus, G. E., Lazzeroni, C., Munday, D. J., Olaiya, E., Parker, M. A., White, T. O., Wotton, S. A., Barr, G., Bocquet, G., Ceccucci, A., Cuhadar-Dönszelmann, T., Cundy, D., D'Agostini, G., ... Widhalm, L. (2004). Measurement of the Ξ⁰ → Λγ decay asymmetry and branching fraction. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 584(3-4), 251-259. https://doi.org/10.1016/j.physletb.2004.01.041

@article{f35f0dc15c5844b1b41fb3a5e3b710f6,

title = "Measurement of the Ξ0 → Λγ decay asymmetry and branching fraction",

abstract = "In data taken with the NA48 experiment at the CERN SPS in 1999, 730 candidates of the weak radiative hyperon decay Ξ0→Λγ have been found with an estimated background of 58±8 events. From these events the Ξ0→Λγ decay asymmetry has been determined to α(Ξ0→Λγ)=-0.78±0.18stat±0.06 syst, which is the first evidence of a decay asymmetry in Ξ 0→Λγ. The branching fraction of the decay has been measured to be Br(Ξ0→Λγ)=(1.16±0.05 stat±0.06syst){\texttimes}10-3.",

author = "A. Lai and D. Marras and A. Bevan and Dosanjh, \{R. S.\} and Gershon, \{T. J.\} and B. Hay and Kalmus, \{G. E.\} and C. Lazzeroni and Munday, \{D. J.\} and E. Olaiya and Parker, \{M. A.\} and White, \{T. O.\} and Wotton, \{S. A.\} and G. Barr and G. Bocquet and A. Ceccucci and T. Cuhadar-D{\"o}nszelmann and D. Cundy and G. D'Agostini and N. Doble and V. Falaleev and L. Gatignon and A. Gonidec and B. Gorini and G. Govi and P. Grafstr{\"o}m and W. Kubischta and A. Lacourt and A. Norton and S. Palestini and B. Panzer-Steindel and H. Taureg and M. Velasco and H. Wahl and C. Cheshkov and A. Gaponenko and P. Hristov and V. Kekelidze and D. Madigojine and N. Molokanova and Y. Potrebenikov and G. Tatishvili and A. Tkatchev and A. Zinchenko and I. Knowles and V. Martin and R. Sacco and A. Walker and M. Contalbrigo and P. Dalpiaz and J. Duclos and Frabetti, \{P. L.\} and A. Gianoli and M. Martini and F. Petrucci and M. Savri{\'e} and A. Bizzeti and M. Calvetti and G. Collazuol and G. Graziani and E. Iacopini and M. Lenti and F. Martelli and M. Veltri and Becker, \{H. G.\} and K. Eppard and M. Eppard and H. Fox and A. Kalter and K. Kleinknecht and U. Koch and L. K{\"o}pke and \{Lopes da Silva\}, P. and P. Marouelli and I. Pellmann and A. Peters and B. Renk and Schmidt, \{S. A.\} and V. Sch{\"o}nharting and Y. Schu{\'e} and R. Wanke and A. Winhart and M. Wittgen and Chollet, \{J. C.\} and L. Fayard and L. Iconomidou-Fayard and J. Ocariz and G. Unal and I. Wingerter-Seez and G. Anzivino and P. Cenci and E. Imbergamo and P. Lubrano and A. Mestvirishvili and A. Nappi and M. Pepe and M. Piccini and L. Bertanza and R. Carosi and R. Casali and C. Cerri and M. Cirilli and F. Costantini and R. Fantechi and S. Giudici and I. Mannelli and G. Pierazzini and M. Sozzi and Cheze, \{J. B.\} and J. Cogan and \{de Beer\}, M. and P. Debu and A. Formica and \{Granier de Cassagnac\}, R. and E. Mazzucato and B. Peyaud and R. Turlay and B. Vallage and M. Holder and A. Maier and M. Ziolkowski and R. Arcidiacono and C. Biino and N. Cartiglia and R. Guida and F. Marchetto and E. Menichetti and N. Pastrone and J. Nassalski and E. Rondio and M. Szleper and W. Wislicki and S. Wronka and H. Dibon and G. Fischer and M. Jeitler and M. Markytan and I. Mikulec and G. Neuhofer and M. Pernicka and A. Taurok and L. Widhalm",

year = "2004",

month = apr,

day = "1",

doi = "10.1016/j.physletb.2004.01.041",

language = "English",

volume = "584",

pages = "251--259",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "3-4",

}

Lai, A, Marras, D, Bevan, A, Dosanjh, RS, Gershon, TJ, Hay, B, Kalmus, GE, Lazzeroni, C, Munday, DJ, Olaiya, E, Parker, MA, White, TO, Wotton, SA, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Dönszelmann, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafström, P, Kubischta, W, Lacourt, A, Norton, A, Palestini, S, Panzer-Steindel, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Tatishvili, G, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, PL, Gianoli, A, Martini, M, Petrucci, F, Savrié, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Becker, HG, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Köpke, L, Lopes da Silva, P, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, SA, Schönharting, V, Schué, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Fayard, L, Iconomidou-Fayard, L, Ocariz, J, Unal, G, Wingerter-Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Bertanza, L, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, Cogan, J, de Beer, M, Debu, P, Formica, A, Granier de Cassagnac, R, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A & Widhalm, L 2004, 'Measurement of the Ξ⁰ → Λγ decay asymmetry and branching fraction', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, VOL. 584, Numéro 3-4, p. 251-259. https://doi.org/10.1016/j.physletb.2004.01.041

TY - JOUR

T1 - Measurement of the Ξ0 → Λγ decay asymmetry and branching fraction

AU - Lai, A.

AU - Marras, D.

AU - Bevan, A.

AU - Dosanjh, R. S.

AU - Gershon, T. J.

AU - Hay, B.

AU - Kalmus, G. E.

AU - Lazzeroni, C.

AU - Munday, D. J.

AU - Olaiya, E.

AU - Parker, M. A.

AU - White, T. O.

AU - Wotton, S. A.

AU - Barr, G.

AU - Bocquet, G.

AU - Ceccucci, A.

AU - Cuhadar-Dönszelmann, T.

AU - Cundy, D.

AU - D'Agostini, G.

AU - Doble, N.

AU - Falaleev, V.

AU - Gatignon, L.

AU - Gonidec, A.

AU - Gorini, B.

AU - Govi, G.

AU - Grafström, P.

AU - Kubischta, W.

AU - Lacourt, A.

AU - Norton, A.

AU - Palestini, S.

AU - Panzer-Steindel, B.

AU - Taureg, H.

AU - Velasco, M.

AU - Wahl, H.

AU - Cheshkov, C.

AU - Gaponenko, A.

AU - Hristov, P.

AU - Kekelidze, V.

AU - Madigojine, D.

AU - Molokanova, N.

AU - Potrebenikov, Y.

AU - Tatishvili, G.

AU - Tkatchev, A.

AU - Zinchenko, A.

AU - Knowles, I.

AU - Martin, V.

AU - Sacco, R.

AU - Walker, A.

AU - Contalbrigo, M.

AU - Dalpiaz, P.

AU - Duclos, J.

AU - Frabetti, P. L.

AU - Gianoli, A.

AU - Martini, M.

AU - Petrucci, F.

AU - Savrié, M.

AU - Bizzeti, A.

AU - Calvetti, M.

AU - Collazuol, G.

AU - Graziani, G.

AU - Iacopini, E.

AU - Lenti, M.

AU - Martelli, F.

AU - Veltri, M.

AU - Becker, H. G.

AU - Eppard, K.

AU - Eppard, M.

AU - Fox, H.

AU - Kalter, A.

AU - Kleinknecht, K.

AU - Koch, U.

AU - Köpke, L.

AU - Lopes da Silva, P.

AU - Marouelli, P.

AU - Pellmann, I.

AU - Peters, A.

AU - Renk, B.

AU - Schmidt, S. A.

AU - Schönharting, V.

AU - Schué, Y.

AU - Wanke, R.

AU - Winhart, A.

AU - Wittgen, M.

AU - Chollet, J. C.

AU - Fayard, L.

AU - Iconomidou-Fayard, L.

AU - Ocariz, J.

AU - Unal, G.

AU - Wingerter-Seez, I.

AU - Anzivino, G.

AU - Cenci, P.

AU - Imbergamo, E.

AU - Lubrano, P.

AU - Mestvirishvili, A.

AU - Nappi, A.

AU - Pepe, M.

AU - Piccini, M.

AU - Bertanza, L.

AU - Carosi, R.

AU - Casali, R.

AU - Cerri, C.

AU - Cirilli, M.

AU - Costantini, F.

AU - Fantechi, R.

AU - Giudici, S.

AU - Mannelli, I.

AU - Pierazzini, G.

AU - Sozzi, M.

AU - Cheze, J. B.

AU - Cogan, J.

AU - de Beer, M.

AU - Debu, P.

AU - Formica, A.

AU - Granier de Cassagnac, R.

AU - Mazzucato, E.

AU - Peyaud, B.

AU - Turlay, R.

AU - Vallage, B.

AU - Holder, M.

AU - Maier, A.

AU - Ziolkowski, M.

AU - Arcidiacono, R.

AU - Biino, C.

AU - Cartiglia, N.

AU - Guida, R.

AU - Marchetto, F.

AU - Menichetti, E.

AU - Pastrone, N.

AU - Nassalski, J.

AU - Rondio, E.

AU - Szleper, M.

AU - Wislicki, W.

AU - Wronka, S.

AU - Dibon, H.

AU - Fischer, G.

AU - Jeitler, M.

AU - Markytan, M.

AU - Mikulec, I.

AU - Neuhofer, G.

AU - Pernicka, M.

AU - Taurok, A.

AU - Widhalm, L.

PY - 2004/4/1

Y1 - 2004/4/1

N2 - In data taken with the NA48 experiment at the CERN SPS in 1999, 730 candidates of the weak radiative hyperon decay Ξ0→Λγ have been found with an estimated background of 58±8 events. From these events the Ξ0→Λγ decay asymmetry has been determined to α(Ξ0→Λγ)=-0.78±0.18stat±0.06 syst, which is the first evidence of a decay asymmetry in Ξ 0→Λγ. The branching fraction of the decay has been measured to be Br(Ξ0→Λγ)=(1.16±0.05 stat±0.06syst)×10-3.

AB - In data taken with the NA48 experiment at the CERN SPS in 1999, 730 candidates of the weak radiative hyperon decay Ξ0→Λγ have been found with an estimated background of 58±8 events. From these events the Ξ0→Λγ decay asymmetry has been determined to α(Ξ0→Λγ)=-0.78±0.18stat±0.06 syst, which is the first evidence of a decay asymmetry in Ξ 0→Λγ. The branching fraction of the decay has been measured to be Br(Ξ0→Λγ)=(1.16±0.05 stat±0.06syst)×10-3.

U2 - 10.1016/j.physletb.2004.01.041

DO - 10.1016/j.physletb.2004.01.041

M3 - Article

AN - SCOPUS:12144288935

SN - 0370-2693

VL - 584

SP - 251

EP - 259

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

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

IS - 3-4

ER -

Measurement of the Ξ0 → Λγ decay asymmetry and branching fraction

Résumé

Accès au document

Empreinte digitale

Contient cette citation

Measurement of the Ξ⁰ → Λγ decay asymmetry and branching fraction