Published June 2, 2010 | Version v1
Report Metadata-only

Observation of the Upsilon(13DJ ) Bottomonium State through Decays to pi+pi-Upsilon(1S)

Creators

Description

Based on 122X106 υ(3S) events collected with the BABAR detector, we have observed the υ(13DJ) bottomonium state through the υ(3S)→γγυ(13DJ)→γγπ+π-υ(1S) decay chain. The significance is 6.2 standard deviations including systematic uncertainties. The mass of the J = 2 member of the υ(13DJ) triplet is determined to be 10164.5(-+)0.8 (stat.) (-+) 0.5 (syst.) MeV/c2. We use the π+π- invariant mass and decay angular distributions to confirm the consistency of the observed state with the orbital angular momentum and parity assignments of the υ(13DJ).

Availability note (English)

Available from http://www.slac.stanford.edu/cgi-wrap/getdoc/slac-pub-14027.pdf; http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-14027.html; PURL: https://www.osti.gov/servlets/purl/981383-0trBsU/

Additional details

Identifiers

URL
http://www.slac.stanford.edu/cgi-wrap/getdoc/slac-pub-14027.pdf; http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-14027.html; https://www.osti.gov/servlets/purl/981383-0trBsU/;
arXiv
arXiv:1004.0175;

Publishing Information

Imprint Pagination
vp.
Report number
SLAC-PUB--14027

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
41091168
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ANGULAR DISTRIBUTION; BOTTOMONIUM; DECAY; MASS; ORBITAL ANGULAR MOMENTUM; PARITY; TRIPLETS
Descriptors DEC
ANGULAR MOMENTUM; BOSONS; DISTRIBUTION; ELEMENTARY PARTICLES; HADRONS; MESONS; MULTIPLETS; PARTICLE PROPERTIES; QUARKONIUM

Optional Information

Contract/Grant/Project number
arXiv:1004.0175; AC02-76SF00515
Notes
Submitted to Physical Review Letters; 8 pages
Funding organization
US Department of Energy (United States)