Unable to search for year%3A2015 AND collaborations%3ALHCf AND reactions%3A%22P P --%3E N X%22: parse_exception: Encountered " "-" "- "" at line 1, column 62. Was expecting one of: <BAREOPER> ... "(" ... "*" ... <QUOTED> ... <TERM> ... <PREFIXTERM> ... <WILDTERM> ... <REGEXPTERM> ... "[" ... "{" ... <NUMBER> ... <TERM> ... "*" ...

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