There are several ways in which data records can be located and displayed
in the Reaction Database.
- Standard Search Method
- Form Search Method
- Using a precompiled Data Review
- From the "Reaction-Data (Durham)" link in Spires-Hep
Standard Search Method
To use this method enter your query string in the search box.
The query is made up of keyword-value pairs joined with Boolean ANDs.
All searches are case indepenent. Help on the values for the different
keywords is available from the 'Browse' section. The available keywords are:
- reac
-
"reac" (or "re") is one of the keywords to use to find data on a specific reaction.
Reactions are written in the form "a b --> c b ..." where "a" and "b" are notionally called the
beam and target particles respectively in the initial state and "c" and "d" etc.. are the final state particles.
Beacuse of the way the search is implemented the result is not dependent of the ordering within the initial and
final states. Help on the particle vocabulary is available in thwe Browse section.
An example would be "re e+ e- --> j/psi" which
would locate all data from E+ E+ interactions with a J/PSI particle in the final state.
- obs
-
"obs" is the keyword to use to specifiy a particular type of measurement or observable.
It is often used in conjunction with the "reac" keyword. Typical values are "SIG" "DSIG/DT", "F2"
and "POL". An example search would be "re e+ e- --> and obs dsig/dx".
- sqrts
-
the "sqrts" keyword adds minimum centre-of-mass criteria to the search. The units are GeV.
An example is "re pbar p and sqrts 1900"
- fsp
-
the "fsp" keyword allows searching for data with a specific final state particle.
- exp
-
the "exp" (or "cn" or "de") keyword specifies the name of the experiment. It is a very loose search
so only part of a name need be specified. For example "exp cern" would find all data in the dataabse
from CERN experiments while "de ALEPH" would only find data from the ALEPH experiment.
- date
-
the "date" keyword specifies the year of the publication/preprint.
- ref
-
the "ref" keyword specifies the publication or preprint.
- auth
-
the "auth" keyword specifies the name of the first author on the publication.
In most of the keywords left and right truncation on the search can be made by using the "%" character
at the beginning and end of the value string respectively. However, when using the "reac" search care
needs to be taken since each of the individual particle are treated separately in the query.
Form Search Interface
In this interface the user is presented with a "form" to fill in. The fields in the form are essentially
the keywords described in the Standard Search Method and are combined together with Boolean ANDs to make
the search.
Data Reviews
The Durham HepData group maintains several on-line reviews of data in which the datasets from the Reaction Database are index by Experiment Name and Topic thus making the data easy to locate and display.
To date the topics covered in the Data Reviews are (with direct links):
SPIRES-HEP link
Finally, the SPIRES HEP bibliographic database contains a link "Reaction Data (Durham)" which accesses the corresponding data record in the HepData Reaction Database if it is available.
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HepData is funded by the UK STFC
and hosted at the Durham IPPP