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Using 9.9 fb(-1) of e(+)e(-) collision data collected by the BESIII detector at center-of-mass energies between 4.15 and 4.30 GeV, we search for the processes e(+)e(-) -> gamma(X)(3872) with X(3872) -> pi(0)chi(c0) and X(3872) -> pi pi chi(c0). We set upper limits (at 90% C.L.) of B(X(3872)->pi(0)chi(c0))/B(X(3872) -> pi(+)pi(-) J/psi) < 3.6, B(X(3872) -> pi(+)pi(-)chi(c0))/B(X(3872) -> pi(+)pi(-) J/psi) < 0.56, and B(X(3872) -> pi(+)pi(-)chi(c0))/B(X(3872) -> pi(+)pi(-) J/psi) < 1.7. Combined with the BESIII measurement of X(3872) -> pi(0)chi(c1), we also set an upper limit of B(X(3872)->pi(0)chi(c0))/B(X(3872) -> pi(0)chi(c1) < 4.5.

Search for X(3872) -> pi(0)chi(c0) and X(3872) -> pi pi chi(c0) at BESIII

Amoroso, A;Bianchi, F;Bortone, A;Destefanis, M;De Mori, F;Fava, L;Garbolino, S;Greco, M;Hu, JF;Lavezzi, L;Maggiora, M;Marcello, S;Rivetti, A;Sosio, S;Spataro, S;Yan, L;
2022-01-01

Abstract

Using 9.9 fb(-1) of e(+)e(-) collision data collected by the BESIII detector at center-of-mass energies between 4.15 and 4.30 GeV, we search for the processes e(+)e(-) -> gamma(X)(3872) with X(3872) -> pi(0)chi(c0) and X(3872) -> pi pi chi(c0). We set upper limits (at 90% C.L.) of B(X(3872)->pi(0)chi(c0))/B(X(3872) -> pi(+)pi(-) J/psi) < 3.6, B(X(3872) -> pi(+)pi(-)chi(c0))/B(X(3872) -> pi(+)pi(-) J/psi) < 0.56, and B(X(3872) -> pi(+)pi(-)chi(c0))/B(X(3872) -> pi(+)pi(-) J/psi) < 1.7. Combined with the BESIII measurement of X(3872) -> pi(0)chi(c1), we also set an upper limit of B(X(3872)->pi(0)chi(c0))/B(X(3872) -> pi(0)chi(c1) < 4.5.
2022
PHYSICAL REVIEW D
105
7
072009-1
072009-16
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1874688
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