Academic Journal
Determination of the S-wave pi pi scattering lengths from a study of K(+/-) -> pi(+/-)pi(0)pi(0) decays
| العنوان: | Determination of the S-wave pi pi scattering lengths from a study of K(+/-) -> pi(+/-)pi(0)pi(0) decays |
|---|---|
| المؤلفون: | Batley J. R., Culling A. J., Kalmus G., Lazzeroni C., Munday D. J., Slater M. W., Wotton S. A., Arcidiacono R., Bocquet G., Cabibbo N., Ceccucci A., Cundy D., Falaleev V., Fidecaro M., Gatignon L., Gonidec A., Kubischta W., Norton A., Maier A., Patel M., Peters A., Balev S., Frabetti P. L., Goudzovski E., Hristov P., Kekelidze V., Kozhuharov V., Litov L., Madigozhin D., Marinova E., Molokanova N., Polenkevich I., Potrebenikov Y.u., Stoynev S., Zinchenko A., Monnier E., Swallow E., Winston R., Rubin P., Walker A., Baldini W., Ramusino A. Cotta, Dalpiaz P., Damiani C., Fiorini M., Gianoli A., Martini M., Petrucci F., Savrie M., Scarpa M., Wahl H., Calvetti M., Iacopini E., Ruggiero G., Bizzeti A., Lenti M., Veltri M., Behler M., Eppard K., Kleinknecht K., Marouelli P., Masetti L., Moosbrugger U., Morales C. Morales, Renk B., Wache M., Wanke R., Winhart A., Coward D., Dabrowski A., Martin T. Fonseca, Shieh M., Szleper M., Velasco M., Wood M. D., Anzivino G., Imbergamo E., Nappi A., Piccini M., Raggi M., Valdata Nappi M., Cenci P., Pepe M., Petrucci M. C., Cerri C., Fantechi R., Collazuol G., DiLella L., LAMANNA, GIANLUCA, Mannelli I., Michetti A., COSTANTINI, FLAVIO, Doble N., Fiorini L., GIUDICI, SERGIO, PIERAZZINI, GIUSEPPE, SOZZI, MARCO STANISLAO, Venditti S., Bloch Devaux B., Cheshkov C., Cheze J. B., De Beer M., Derre J., Marel G., Mazzucato E., Peyaud B., Vallage B., Holder M., Ziolkowski M., Biino C., Cartiglia N., Marchetto F., Bifani S., Clemencic M., Lopez S. Goy, Dibon H., Jeitler M., Markytan M., Mikulec I., Neuhofer G., Widhalm L. |
| المساهمون: | Batley, J. R., Culling, A. J., Kalmus, G., Lazzeroni, C., Munday, D. J., Slater, M. W., Wotton, S. A., Arcidiacono, R., Bocquet, G., Cabibbo, N., Ceccucci, A., Cundy, D., Falaleev, V., Fidecaro, M., Gatignon, L., Gonidec, A., Kubischta, W., Norton, A., Maier, A., Patel, M., Peters, A., Balev, S., Frabetti, P. L., Goudzovski, E., Hristov, P., Kekelidze, V., Kozhuharov, V., Litov, L., Madigozhin, D., Marinova, E., Molokanova, N., Polenkevich, I., Potrebenikov, Y. u., Stoynev, S., Zinchenko, A., Monnier, E., Swallow, E., Winston, R., Rubin, P., Walker, A., Baldini, W., Ramusino A., Cotta, Dalpiaz, P., Damiani, C., Fiorini, M., Gianoli, A., Martini, M., Petrucci, F., Savrie, M., Scarpa, M., Wahl, H., Calvetti, M., Iacopini, E., Ruggiero, G., Bizzeti, A., Lenti, M., Veltri, M., Behler, M., Eppard, K., Kleinknecht, K., Marouelli, P., Masetti, L., Moosbrugger, U., Morales, Morales C., Renk, B., Wache, M., Wanke, R., Winhart, A., Coward, D., Dabrowski, A., Martin T., Fonseca, Shieh, M., Szleper, M., Velasco, M., Wood, M. D., Anzivino, G., Imbergamo, E., Nappi, A., Piccini, M., Raggi, M., Valdata Nappi, M., Cenci, P., Pepe, M., Petrucci, M. C., Cerri, C., Fantechi, R., Collazuol, G., Dilella, L., Lamanna, Gianluca, Mannelli, I., Michetti, A., Costantini, Flavio, Doble, N., Fiorini, L., Giudici, Sergio, Pierazzini, Giuseppe, Sozzi, MARCO STANISLAO, Venditti, S., Bloch Devaux, B., Cheshkov, C. |
| سنة النشر: | 2009 |
| المجموعة: | ARPI - Archivio della Ricerca dell'Università di Pisa |
| الوصف: | We report the results from a study of the full sample of similar to 6.031 x 10(7) K(+/-) -> pi(+/-)pi(0)pi(0) decays recorded by the NA48/2 experiment at the CERN SPS. As first observed in this experiment, the pi(0)pi(0) invariant mass (M(00)) distribution shows a cusp-like anomaly in the region around M(00) = 2m(+), where m(+) is the charged pion mass. This anomaly has been interpreted as an effect due mainly to the final state charge exchange scattering process pi(+)pi(-) -> pi(0)pi(0) in K(+/-) -> pi(+/-)pi(+)pi(-) decay. Fits to the M(00) distribution using two different theoretical formulations provide the presently most precise determination of a(0) - a(2), the difference between the pi pi S-wave scattering lengths in the isospin I = 0 and I = 2 states. Higher-order pi pi rescattering terms, included in the two formulations, allow also an independent, though less precise, determination of a(2). |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | STAMPA |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000272803600005; volume:64; issue:4; firstpage:589; lastpage:609; numberofpages:21; journal:THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS; http://hdl.handle.net/11568/204609; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-71249146298; https://link.springer.com/article/10.1140/epjc/s10052-009-1171-3 |
| DOI: | 10.1140/epjc/s10052-009-1171-3 |
| الاتاحة: | http://hdl.handle.net/11568/204609 https://doi.org/10.1140/epjc/s10052-009-1171-3 https://link.springer.com/article/10.1140/epjc/s10052-009-1171-3 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.98FD045F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1140/epjc/s10052-009-1171-3 |
|---|