We present an analysis of angular distributions and correlations of the X(3872) particle in the exclusive decay mode X(3872)-> J/psi pi(+)pi(-) with J/psi ->mu(+)mu(-). We use 780 pb(-1) of data from p (p) over bar collisions at root s=1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We derive constraints on spin, parity, and charge conjugation parity of the X(3872) particle by comparing measured angular distributions of the decay products with predictions for different J(PC) hypotheses. The assignments J(PC)=1(++) and 2(-+) are the only ones consistent with the data.
Analysis of the quantum numbers J(PC) of the x(3872) particle RID G-1087-2011 RID E-4473-2011
MORELLO, MICHAEL JOSEPH;
2007
Abstract
We present an analysis of angular distributions and correlations of the X(3872) particle in the exclusive decay mode X(3872)-> J/psi pi(+)pi(-) with J/psi ->mu(+)mu(-). We use 780 pb(-1) of data from p (p) over bar collisions at root s=1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We derive constraints on spin, parity, and charge conjugation parity of the X(3872) particle by comparing measured angular distributions of the decay products with predictions for different J(PC) hypotheses. The assignments J(PC)=1(++) and 2(-+) are the only ones consistent with the data.File in questo prodotto:
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