MEASUREMENT OF THE J/PSI AND PSI' RESONANCE PARAMETERS IN (P)OVER-BAR ANNIHILATION

被引：66

作者：

ARMSTRONG, TA

BETTONI, D

BHARADWAJ, V

BIINO, C

BORREANI, G

BROEMMELSIEK, D

BUZZO, A

CALABRESE, R

CECCUCCI, A

CESTER, R

CHURCH, MD

DALPIAZ, P

DALPIAZ, PF

DIBENEDETTO, R

DIMITROYANNIS, D

FABBRI, M

FAST, JE

GIANOLI, A

GINSBURG, CM

GOLLWITZER, KE

HAHN, AA

HASAN, MA

HSUEH, SY

LEWIS, RA

LUPPI, E

MACRI, M

MAJEWSKA, A

MANDELKERN, MA

MARCHETTO, F

MARINELLI, M

MARQUES, JL

MARSH, W

MARTINI, M

MASUZAWA, M

MENICHETTI, E

MIGLIORI, A

MUSSA, R

PALESTINI, S

PALLAVICINI, M

PASSAGGIO, S

PASTRONE, N

PATRIGNANI, C

PEOPLES, J

PESANDO, L

PETRUCCI, F

PIA, MG

PORDES, S

RAPIDIS, PA

RAY, RE

REID, JD

机构：

[1] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510

[2] IST NAZL FIS NUCL,I-44100 FERRARA,ITALY

[3] UNIV FERRARA,I-44100 FERRARA,ITALY

[4] IST NAZL FIS NUCL,I-16146 GENOA,ITALY

[5] UNIV GENOA,I-16146 GENOA,ITALY

[6] UNIV CALIF IRVINE,IRVINE,CA 92717

[7] NORTHWESTERN UNIV,EVANSTON,IL 60208

[8] IST NAZL FIS NUCL,TURIN,ITALY

[9] UNIV TURIN,I-10124 TURIN,ITALY

来源：

PHYSICAL REVIEW D | 1993年 / 47卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.47.772

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report new measurements for the mass, width, and branching ratios for the J/psi and the psi'. These charmonium states are formed exclusively in ppBAR annihilations at the Fermilab Antiproton Accumulator ring, where stochastically cooled antiprotons are brought into collision with the protons of an internal hydrogen gas jet target. The antiproton energy is precisely controlled and measured allowing an accurate measurement of the resonance parameters. From the shape of the excitation curves we find that the widths of J/psi and psi' are GAMMA(J/psi) = 99 +/- 12 +/- 6 keV and GAMMA(psi')=306+/-36+/-16 keV, and that the mass of the J/psi is 3096.87 +/- 0.03 +/- 0.03 MeV/c2. For the J/psi we obtain B(J/psi --> ppBAR)B(J/psi --> e+e-) = (1.14(-0.12)+0.16 +/- 0.10) x 10(-4); for the psi' we obtain B(psi' --> ppBAR)[B(psi' --> e+e-) + B(psi' --> J/psiX)B(J/psi --> e+e-)] = (1.17(-0.12)+0.14 +/- 0.08) x 10(-5).

引用

页码：772 / 783

页数：12

共 31 条

[1] PRECISION-MEASUREMENTS OF CHARMONIUM STATES FORMED IN PBARP ANNIHILATION [J].

ARMSTRONG, TA ;

BETTONI, D ;

BHARADWAJ, V ;

BIINO, C ;

BORREANI, G ;

BROEMMELSIEK, D ;

BUZZO, A ;

CALABRESE, R ;

CECCUCCI, A ;

CESTER, R ;

CHURCH, MD ;

DALPIAZ, P ;

DALPIAZ, PF ;

FAST, JE ;

FERRONI, S ;

GINSBURG, CM ;

GOLLWITZER, KE ;

HAHN, AA ;

HASAN, MA ;

HSUEH, SY ;

LEWIS, RA ;

LUPPI, E ;

MACRI, M ;

MAJEWSKA, A ;

MANDELKERN, MA ;

MARCHETTO, F ;

MARINELLI, M ;

MARQUES, JL ;

MARSH, W ;

MARTINI, M ;

MASUZAWA, M ;

MENICHETTI, E ;

MIGLIORI, A ;

MUSSA, R ;

PALESTINI, S ;

PASTRONE, N ;

PATRIGNANI, C ;

PEOPLES, J ;

PESANDO, L ;

PETRUCCI, F ;

PIA, MG ;

PORDES, S ;

RAPIDIS, PA ;

RAY, RE ;

REID, JD ;

RINAUDO, G ;

ROSEN, JL ;

SANTRONI, A ;

SARMIENTO, M ;

SAVRIE, M .

PHYSICAL REVIEW LETTERS, 1992, 68 (10) :1468-1471

[2] NEUTRINO MASS LIMITS FROM A PRECISE DETERMINATION OF BETA-BETA-DECAY RATES OF TE-128 AND TE-130 [J].

BERNATOWICZ, T ;

BRANNON, J ;

BRAZZLE, R ;

COWSIK, R ;

HOHENBERG, C ;

PODOSEK, F .

PHYSICAL REVIEW LETTERS, 1992, 69 (16) :2341-2344

[3]

ARMSTRONG TA, 1992, FERMILAB92244E PUB

[4] J-PSI RESONANT FORMATION AND MASS MEASUREMENT IN ANTIPROTON-PROTON ANNIHILATIONS [J].

BAGLIN, C ;

BASSOMPIERRE, G ;

BRIENT, JC ;

BROLL, C ;

BUSSIERE, A ;

GUILLAUD, JP ;

MORCH, C ;

POULET, M ;

BAIRD, S ;

KHANARONSEN, E ;

LEISTAM, L ;

LUNDBY, A ;

MOUELLIC, B ;

POOLE, J ;

BUZZO, A ;

FERRONI, S ;

GRACCO, V ;

MACRI, M ;

MATTERA, L ;

PIA, MG ;

POZZO, A ;

SANTRONI, A ;

TOMASINI, F ;

VALBUSA, U ;

BURQ, JP ;

CHEMARIN, M ;

CHEVALLIER, M ;

FAY, J ;

ILLE, B ;

LAMBERT, M ;

BUGGE, L ;

BURAN, T ;

KIRSEBOM, K ;

SKJEVLING, G ;

STAPNES, S ;

STUGU, B ;

PETRILLO, L ;

SEVERI, M ;

BROM, JM ;

ESCOUBES, B ;

BIINO, C ;

BORREANI, G ;

CESTER, R ;

MARCHETTO, F ;

MENICHETTI, E ;

PASTRONE, N ;

RINAUDO, G .

NUCLEAR PHYSICS B, 1987, 286 (3-4) :592-634

[5]

BAGWELL T, 1984, ANTIPROTON SOURCE BE

[6]

BARISONE G, 1989, INFNAE89 REP GEN

[7] THE E760 LEAD-GLASS CENTRAL CALORIMETER - DESIGN AND INITIAL TEST-RESULTS [J].

BARTOSZEK, L ;

BHARADWAJ, V ;

CHURCH, MD ;

HAHN, AA ;

PEOPLES, J ;

PORDES, SH ;

RAPIDIS, PA ;

WERKEMA, SJ ;

AGAHI, D ;

BROEMMELSIEK, DR ;

FAST, JE ;

GEE, M ;

GOLLWITZER, KE ;

MANDELKERN, MA ;

MARQUES, JL ;

SCHULTZ, J ;

WEBER, MF ;

GINSBURG, CM ;

MASUZAWA, M ;

RAY, RE ;

ROSEN, JL ;

TROKENHEIM, S ;

ZHAO, JL ;

ARMSTRONG, TA ;

HUFFORD, GE ;

LEWIS, RA ;

MAJEWSKA, AM ;

REID, JD ;

SMITH, GA ;

HASAN, MA ;

BIINO, C ;

PALESTINI, S .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1991, 301 (01) :47-60

[8]

BHARADWAJ V, 1989, 1ST EUR PART ACC C P, P964

[9] A VERY LIGHT PROPORTIONAL CHAMBER CONSTRUCTED WITH ALUMINIZED MYLAR TUBES FOR DRIFT TIME AND CHARGE DIVISION READ-OUTS [J].

BIINO, C ;

MUSSA, R ;

PALESTINI, S ;

PASTRONE, N ;

PESANDO, L .

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 1989, 36 (01) :98-100

[10] CHARGE DIVISION IN A SMALL PROPORTIONAL CHAMBER CONSTRUCTED WITH ALUMINIZED MYLAR TUBES [J].

BIINO, C ;

MUSSA, R ;

PALESTINI, S ;

PASTRONE, N ;

PESANDO, L .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1988, 271 (03) :417-422

← 1 2 3 4 →