,THE ,L,H,CB EXPERIMENT "<,LARGE ,HADRON ,COLLIDER BEAUTY"> IS THE ,,LHC'S SPECIALIST IN THE STRANGE AND THE RARE THE DETECTOR BUILT TO WATCH BEAUTY QUARKS DECAY IN THE INSTANT BETWEEN THEIR CREATION AND THEIR DISAPPEARANCE4 ,WHERE THE ,,LHC'S TWO GENERAL-PURPOSE GIANTS1 ,,ATLAS AND ,,CMS1 HUNT THE HEADLINE DISCOVERIES "1 ,L,H,CB OPERATES IN A DIFFERENT REGISTER3 IT CATALOGS THE UNLIKELY THE ONE-IN-A-BILLION DECAY1 THE ASYMMETRY BETWEEN MATTER AND ANTIMATTER AND FROM THOSE DEVIATIONS EXTRACTS PHYSICS THE BIG DETECTORS CANNOT REACH4 ,ON #C ,NOVEMBER #BJBF IT PRODUCED ITS MOST FAMOUS RESULT3 EVIDENCE FOR THE RAREST DECAY EVER OBSERVED1 THE EVENT THAT OPENED THE ZEPTOVERSE4 ,WHY A BEAUTY EXPERIMENT ,BEAUTY " QUARKS ARE IDEAL LABORATORIES FOR PRECISION PHYSICS3 THEY'RE HEAVY ENOUGH TO DECAY THROUGH RICH CHANNELS1 THEY'RE PRODUCED COPIOUSLY IN ,,LHC COLLISIONS1 AND THEIR DECAYS ARE EXQUISITELY SENSITIVE TO ,,CP VIOLATION THE MATTERANTIMATTER ASYMMETRY THAT ANY ANSWER TO WHY DOES MATTER EXIST MUST PRODUCE4 ,WHERE A DETECTOR LIKE ,,ATLAS SURROUNDS THE COLLISION POINT IN ALL DIRECTIONS1 ,L,H,CB IS A FORWARD SPECTROMETER3 A #BJ-METRE TUNNEL OF INSTRUMENTS POINTED DOWN-BEAM1 BECAUSE PROTON COLLISIONS TEND TO SEND BEAUTY PARTICLES SHOOTING FORWARD RATHER THAN SPRAYING SIDEWAYS4 ,ITS VERTEX DETECTOR SITS MILLIMETRES FROM THE BEAM1 CLOSE ENOUGH TO CATCH PARTICLES THAT LIVE A TRILLIONTH OF A SECOND BY THE MILLIMETRES THEY TRAVEL BEFORE DYING4 ,WHAT IT'S FOUND "9 ,THE PENTAQUARK "<#BJAE"> A NEW KIND OF HADRON3 FIVE QUARKS BOUND TOGETHER1 PREDICTED BUT NEVER SEEN BEFORE ,L,H,CB2 LATER ANALYSIS SPLIT IT INTO A FAMILY OF PENTAQUARK STATES "9 ;,B "<#BJAE1 JOINTLY WITH ,,CMS"> FIRST OBSERVATION OF THE ULTRA-RARE BEAUTY-MESON DECAY TO TWO MUONS1 @9#C PER BILLION THE PREDECESSOR TO THE ,NOVEMBER #BJBF RESULT "9 ,DOZENS OF NEW TETRAQUARK AND EXOTIC HADRON STATES ,L,H,CB HAS BECOME THE WORLD'S FACTORY OF 8MOLECULES MADE OF QUARKS0 ,,CP VIOLATION IN BARYONS "<#BJBE"> FIRST OBSERVATION OF MATTERANTIMATTER ASYMMETRY IN A BARYON"9 "1 OPENING A NEW FRONT IN THE BARYOGENESIS MYSTERY "9 ,BP "<,NOVEMBER #BJBF"> EVIDENCE FOR THE RAREST DECAY EVER OBSERVED1 @9#A IN #AJ BILLION1 AT #C4B SIGMA THE MEASUREMENT THAT OPENED THE ZEPTOVERSE2 SEE ONE IN TEN BILLION DECAY ,THE ,UPGRADE ,I REBUILD ,THE #BJBF RESULT WAS POSSIBLE BECAUSE ,L,H,CB REBUILT ITSELF4 ,UPGRADE ,I1 INSTALLED DURING THE ,,LHC'S SECOND LONG SHUTDOWN AND RECORDING DATA SINCE #BJBD1 REPLACED NEARLY EVERY DETECTOR COMPONENT3 A NEW SILICON VERTEX DETECTOR "<,V,E,L,OPIX"> CLOSER TO THE BEAM1 NEW TRACKING STATIONS1 AND A TRIGGER MOVED ENTIRELY TO SOFTWARE REPLACING FIXED-HARDWARE FILTERS WITH A REAL-TIME ,,GPU FARM THAT INSPECTS EVERY COLLISION AT @9#CJ ,M,HZ4 ,THE UPGRADED MACHINE RECORDS @9#AJJ MILLION PROTON COLLISIONS PER SECOND1 FIVE TIMES ITS OLD RATE1 WITH MACHINE-LEARNING CLASSIFIERS THAT CAN FIND A ONE-IN-TEN-BILLION EVENT IN A FIREHOSE OF @9#D TERABYTES PER SECOND4 ,WITHOUT THE REBUILD1 THE ,BP SIGNAL WOULD HAVE STAYED BELOW THE NOISE FLOOR4 ,HOW IT RELATES TO THE OTHER DETECTORS ,THE ,,LHC RINGS FOUR MAJOR EXPERIMENTS AT FOUR COLLISION POINTS3 ,,ATLAS AND ,,CMS "1 ,,ALICE "1 AND ,L,H,CB "4 ,THEY ARE COMPLEMENTARY BY DESIGN3 THE GENERALISTS FIND NEW PARTICLES2 ,L,H,CB TESTS WHETHER THE KNOWN ONES OBEY THE RULES4 ,BOTH MODES ARE NEEDED THE ZEPTOVERSE RESULT IS EXACTLY THE KIND OF FINDING ONLY A DEDICATED FLAVOR EXPERIMENT COULD PRODUCE4 ,SEE ALSO "9 ZEPTOVERSE THE REALM ,L,H,CB OPENED "9 ONE IN TEN BILLION DECAY ITS MOST FAMOUS RESULT "9 WHY DOES MATTER EXIST THE PROBLEM ,L,H,CB'S PHYSICS ADDRESSES "9 HISTORY OF PHYSICS ,REFERENCES - ,L,H,CB COLLABORATION DETECTOR DESCRIPTION1 ,,JINST #C ,S#JHJJE - ,,CERN ,L,H,CB ,UPGRADE ,I DOCUMENTATION - ,L,H,CB COLLABORATION PENTAQUARK DISCOVERY "<#BJAE">2 ;,B WITH ,,CMS "<#BJAE">2 BARYON ,,CP VIOLATION "<#BJBE"> - ,,CERN 8,L,H,CB FINDS EVIDENCE OF ONE-IN-TEN-BILLION PARTICLE DECAY0 "<,NOV #BJBF">