We measure the branching fraction for the charmless semi-inclusive process B-->eta(')X(s), where the eta(') meson has a momentum in the range 2.0 to 2.7 GeV/c in the Y(4S) center-of-mass frame and X-s represents a system comprising a kaon and zero to four pions. We find B(B-->eta(')X(s))=[3.9+/-0.8(stat)+/-0.5(syst)+/-0.8(model)]x10(-4). We also obtain the X-s mass spectrum and find that it fits models predicting high masses.

Study of high momentum eta ' production in B ->eta X-'(s) / Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.m., Hicheur, A., Karyotakis, Y., Lees, J.p., Tisserand, V., Zghiche, A., Palano, A., Pompili, A., Chen, J.c., Qi, N.d., Rong, G., Wang, P., Zhu, Y.s., Eigen, G., Ofte, I., Stugu, B., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 93:(2004), pp. 061801-1-061801-7. [10.1103/PhysRevLett.93.061801]

Study of high momentum eta ' production in B ->eta X-'(s)

DEL RE, Daniele;RAHATLOU, SHAHRAM;SARTI, ALESSIO;BELLINI, Fabio;CAVOTO, Gianluca;FACCINI, Riccardo;FERRONI, Fernando;GASPERO, Mario;VOENA C;
2004

Abstract

We measure the branching fraction for the charmless semi-inclusive process B-->eta(')X(s), where the eta(') meson has a momentum in the range 2.0 to 2.7 GeV/c in the Y(4S) center-of-mass frame and X-s represents a system comprising a kaon and zero to four pions. We find B(B-->eta(')X(s))=[3.9+/-0.8(stat)+/-0.5(syst)+/-0.8(model)]x10(-4). We also obtain the X-s mass spectrum and find that it fits models predicting high masses.
2004
01 Pubblicazione su rivista::01a Articolo in rivista
Study of high momentum eta ' production in B ->eta X-'(s) / Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J.m., Hicheur, A., Karyotakis, Y., Lees, J.p., Tisserand, V., Zghiche, A., Palano, A., Pompili, A., Chen, J.c., Qi, N.d., Rong, G., Wang, P., Zhu, Y.s., Eigen, G., Ofte, I., Stugu, B., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 93:(2004), pp. 061801-1-061801-7. [10.1103/PhysRevLett.93.061801]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/231133
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