TY - JOUR SN - 0031-9007 SP - 052002 Y1 - 2007/08/01/ UR - https://discovery.ucl.ac.uk/id/eprint/9877/ AV - public JF - Physical Review Letters KW - Observation KW - Mass KW - Measurement KW - Baryon VL - 99 TI - Observation and Mass Measurement of the Baryon $Xi_b^-$ A1 - Lancaster, M A1 - Malik, S A1 - Nurse, EL A1 - Waters, DCDFC ID - discovery9877 ER -