Observation of the Narrow State X(3872)→J/ψπ+π− in pp Collisions at s√=1.96  TeV

CDF II Collaboration

doi:10.1103/PhysRevLett.93.072001

Scientific article

English

Observation of the Narrow State X(3872)→J/ψπ⁺π⁻ in pp Collisions at s√=1.96 TeV

ContributorsCDF II Collaboration

CollaboratorsCampanelli, Mario; Clark, Allan Geoffrey; D'Onofrio, Monica; Liu, Yanwen; Wu, Xin; Zsenei, Andras

Published inPhysical review letters, vol. 93, no. 07, 072001

Publication date2004

Abstract

We report the observation of a narrow state decaying into J/ψπ+π− and produced in 220 pb−1 of p̄ p collisions at s√=1.96 TeV in the CDF II experiment. We observe 730±90 decays. The mass is measured to be 3871.3±0.7(stat)±0.4(syst) MeV/c2, with an observed width consistent with the detector resolution. This is in agreement with the recent observation by the Belle Collaboration of the X(3872) meson.

Affiliation entities

Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

Citation (ISO format)

CDF II Collaboration. Observation of the Narrow State X(3872)→J/ψπ⁺π⁻ in pp Collisions at s√=1.96 TeV. In: Physical review letters, 2004, vol. 93, n° 07, p. 072001. doi: 10.1103/PhysRevLett.93.072001

Article (Published version)

Identifiers

PID : unige:38061
DOI : 10.1103/PhysRevLett.93.072001

Additional URL for this publicationhttp://journals.aps.org/prl/abstract/10.1103/PhysRevLett.93.072001

Journal ISSN0031-9007

562views

684downloads

Creation24/06/2014 11:51:00

First validation24/06/2014 11:51:00

Update time14/03/2023 21:22:52

Status update14/03/2023 21:22:52

Last indexation30/10/2024 19:09:04

Archive ouverte UNIGE

Observation of the Narrow State X(3872)→J/ψπ+π− in pp Collisions at s√=1.96 TeV

Technical informations

Observation of the Narrow State X(3872)→J/ψπ⁺π⁻ in pp Collisions at s√=1.96 TeV