J PSI PRODUCTION IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV/

Authors
ABACHI S ABBOTT B ABOLINS M ACHARYA BS ADAM I ADAMS DL ADAMS M AHN S AIHARA H ALITTI J ALVAREZ G ALVES GA AMIDI E AMOS N ANDERSON EW ARONSON SH ASTUR R AVERY RE BADEN A BALAMURALI V BALDERSTON J BALDIN B BANTLY J BARTLETT JF BAZIZI K BENDICH J BERI SB BERTRAM I BEZZUBOV VA BHAT PC BHATNAGAR V BHATTACHARJEE M BISCHOFF A BISWAS N BLAZEY G BLESSING S BLOOM P BOEHNLEIN A BOJKO NI BORCHERDING F BORDERS J BOSWELL C BRANDT A BROCK R BROSS A BUCHHOLZ D BURTOVOI VS BUTLER JM CARVALHO W CASEY D CASTILLAVALDEZ H CHAKRABORTY D CHANG SM CHEKULAEV SV CHEN LP CHEN W CHOPRA S CHOUDHARY BC CHRISTENSON JH CHUNG M COBAU WG COCHRAN J COOPER WE CRETSINGER C CLAES D CLARK AR CULLENVIDAL D CUMMINGS MAC CUTTS D DAHL OI DE K DEMARTEAU M DEMINA R DENISENKO K DENISENKO N DENISOV D DENISOV SP DIEHL HT DIESBURG M DILORETO G DIXON R DRAPER P DRINKARD J DUCROS Y DUGAD SR DURSTONJOHNSON S EDMUNDS D ELLISON J ELVIRA VD ENGELMANN R ENO S EPPLEY G ERMOLOV P EROSHIN OV EVDOKIMOV VN FAHEY S FAHLAND T FATYGA M FATYGA MK FEATHERLY J FEHER S FEIN D FERBEL T FINOCCHIARO G FISK HE FISYAK Y FLATTUM E FORDEN GE FORTNER M FRAME KC FRANZINI P FUESS S GALLAS E GALYAEV AN GELD T GENIK RJ GENSER K GERBER CE GIBBARD B GLEBOV V GLENN S GLICENSTEIN JF GOBBI B GOFORTH M GOLDSCHMIDT A GOMEZ B GONCHAROV PI GONZALEZ JL GORDON H GOSS LT GRAF N GRANNIS PD GREEN DR GREEN J GREENLEE H GRIFFIN G GROSSMAN N GRUNDBERG P GRUNENDAHL S GU WX GUGLIELMO G GUIDA JA GUIDA JM GURYN W GURZHIEV SN GUTIERREZ P GUTNIKOV YE HADLEY NJ HAGGERTY H HAGOPIAN S HAGOPIAN V HAHN KS HALL RE HANSEN S HATCHER R HAUPTMAN JM HEDIN D HEINSON AP HEINTZ U HERNANDEZMONTOYA R HEURING T HIROSKY R HOBBS JD HOENEISEN B HOFTUN JS HSIEH F HU T HU T HU T HUEHN T IGARASHI S ITO AS JAMES E JAQUES J JERGER SA JIANG JZY JOFFEMINOR T JOHARI H JOHNS K JOHNSON M JOHNSTAD H JONCKHEERE A JONES M JOSTLEIN H JUN SY JUNG CK KAHN S KALBFLEISCH G KANG JS KEHOE R KELLY ML KERTH L KIM CL KIM SK KLATCHKO A KLIMA B KLOCHKOV BI KLOPFENSTEIN C KLYUKHIN VI KOCHETKOV VI KOHLI JM KOLTICK D KOSTRITSKIY AV KOTCHER J KOURLAS J KOZELOV AV KOZLOVSKI EA KRISHNASWAMY MR KRZYWDZINSKI S KUNORI S LAMI S LANDSBERG G LEBRAT JF LEFLAT A LI H LI J LI YK LIDEMARTEAU QZ LIMA JGR LINCOLN D LINN SL LINNEMANN J LIPTON R LIU YC LOBKOWICZ F LOKEN SC LOKOS S LUEKING L LYON AL MACIEL AKA MADARAS RJ MADDEN R MANI S MAO HS MARGULIES S MARKELOFF R MARKOSKY L MARSHALL T MARTIN MI MARX M MAY B MAYOROV AA MCCARTHY R MCKIBBEN T MCKINLEY J MCMAHON T MELANSON HL NETO JRTD MERRITT KW MIETTINEN H MINCER A DEMIRANDA JM MISHRA CS MOHAMMADIBAARMAND M MOKHOV N MONDAL NK MONTGOMERY HE MOONEY P DAMOTTA H MUDAN M MURPHY C NEGRET JP NEIS E NEMETHY P NESIC D NICOLA M NORMAN D OESCH L OGURI V OLTMAN E OSHIMA N OWEN D PADLEY P PANG M PARA A PARK CH PARK YM PARTRIDGE R PARUA N PATERNO M PERKINS J PERYSHKIN A PETERS M PIEKARZ H PISCHALNIKOV Y PODSTAVKOV VM POPE BG PROSPER HB PROTOPOPESCU S PUSELJIC D QIAN J QUINTAS PZ RAJA R RAJAGOPALAN S RAMIREZ O RAO MVS RAPIDIS PA RASMUSSEN L READ AL REUCROFT S
Citation
S. Abachi et al., J PSI PRODUCTION IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV/, Physics letters. Section B, 370(1-2), 1996, pp. 239-248
Citations number
28
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
370
Issue
1-2
Year of publication
1996
Pages
239 - 248
Database
ISI
SICI code
0370-2693(1996)370:1-2<239:JPPIPC>2.0.ZU;2-F
Abstract
We have studied J/psi production in p (p) over bar collisions at root s = 1.8 TeV with the DO detector at Fermilab using mu(+)mu(-) data. We have measured the inclusive J/psi production cross section as a funct ion of J/psi transverse momentum, p(T). For the kinematic range p(T) > 8 GeV/c and \eta\ < 0.6 we obtain sigma(p (p) over bar --> J/psi + X) . Br(J/psi --> mu(+)mu(-)) = 2.08 +/- 0.17(stat) +/- 0.46(syst) nb. U sing the muon impact parameter we have estimated the fraction of J/psi mesons coming from B meson decays to be f(b) = 0.35 +/- 0.09(stat) +/ - 0.10(syst) and inferred the inclusive b production cross section. Fr om the information on the event topology the fraction of nonisolated J /psi events has been measured to be f(nonisol) = 0.64 +/- 0.08(stat) /- 0.06(syst). We have also obtained the fraction of J/psi events resu lting from radiative decays of chi(c) states, f(chi) = 0.32 +/- 0.07(s tat) +/- 0.07(syst). We discuss the implications of our measurements f or charmonium production processes.