STUDY OF THE CHI-1 AND CHI-2 CHARMONIUM STATES FORMED IN (P)BAR-P ANNIHILATIONS

被引：57
|
作者：
ARMSTRONG, TA
BETTONI, D
BHARADWAJ, V
BIINO, C
BORREANI, G
BROEMMELSIEK, DR
BUZZO, A
CALABRESE, R
CECCUCCI, A
CESTER, R
CHURCH, MD
DALPAIZ, P
DALPIAZ, PF
DAMERI, M
DIMITROYANNIS, D
FABBRI, M
FAST, JE
FERRONI, S
GEE, M
GINSBURG, CM
GOLLWITZER, KE
HAHN, AA
HASAN, MA
HSUEH, SY
LEWIS, RA
LUPPI, E
MACRI, M
MAJEWSKA, AM
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
机构：
[1] UNIV GENOA,I-16146 GENOA,ITALY
[2] NORTHWESTERN UNIV,EVANSTON,IL 60208
[3] IST NAZL FIS NUCL,TURIN,ITALY
[4] FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510
[5] UNIV FERRARA,I-44100 FERRARA,ITALY
[6] UNIV CALIF IRVINE,IRVINE,CA 92717
[7] UNIV TURIN,I-10125 TURIN,ITALY
[8] IST NAZL FIS NUCL,FERRARA,ITALY
来源：
NUCLEAR PHYSICS B | 1992年 / 373卷 / 01期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0550-3213(92)90448-K
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We report on a study of the chi-1(P-3(1)) and chi-2(P-3(2)) states of charmonium formed in antiproton-proton annihilations. An energy scan through the resonances, performed with a very narrow momentum-band beam of antiprotons intersecting a hydrogen jet target, enables us to perform very precise measurements of the mass and the total width of the two resonances. From a sample of 513-chi-1 and 585-chi-2 events, we find M(chi-1) = (3510.53 +/- 0. 13) MeV/c2, M(chi-2) = (3556.15 +/- 0.14) MeV/c2, GAMMA(chi-1) = (0-88 +/- 0.14) MeV and GAMMA(chi-2) = (1.98 +/- 0.18) MeV. From our measurement of the quantity GAMMA(R --> ppBAR) X BR(R --> J/psi-gamma) x BR(J/psi --> e+ e-), using known branching ratios, we obtain GAMMA(chi-1 --> ppBAR) = (69 +/- 13) eV and GAMMA(chi-2 --> ppBAR) = (180 +/- 31) eV.
引用
收藏
页码：35 / 54
页数：20
相关论文
共 50 条
  • [21] Study of the (p)over-bar-p→2π+2π- annihilation from S states
    Bertin, A
    Bruschi, M
    Capponi, M
    Collamati, A
    De Castro, S
    Dona, R
    Ferretti, A
    Galli, D
    Giacobbe, B
    Marconi, U
    Massa, I
    Piccinini, M
    Cesari, NS
    Spighi, R
    Vecchi, S
    Vigotti, F
    Villa, M
    Vitale, A
    Zoccoli, A
    Corradini, M
    Donzella, A
    Rizzini, EL
    Venturelli, L
    Zenoni, A
    Cicalo, C
    Masoni, A
    Puddu, G
    Serci, S
    Usai, G
    Gorchakov, OE
    Prakhov, SN
    Rozhdestvensky, AM
    Sapozhnikov, MG
    Tretyak, VI
    Poli, M
    Gianotti, P
    Guaraldo, C
    Lanaro, A
    Lucherini, V
    Nichitiu, F
    Petrascu, C
    Rosca, A
    Ableev, VG
    Cavion, C
    Gastaldi, U
    Lombardi, M
    Maron, G
    Vannucci, L
    Vedovato, G
    Bendiscioli, G
    PHYSICS LETTERS B, 1997, 414 (1-2) : 220 - 228
  • [22] PONTECORVO REACTIONS OF 2-BODY ANNIHILATIONS P-BAR-D AND P-BAR HE-3 AND MULTIQUARK STATES IN D AND HE-3
    KONDRATYUK, L
    GUARALDO, C
    PHYSICS LETTERS B, 1991, 256 (01) : 6 - 10
  • [23] NASCENT VIBRATIONAL-STATE DISTRIBUTIONS OF ZNH(CHI(2)SIGMA(+)) AND ZND(CHI(2)SIGMA(+)) PRODUCED IN THE REACTIONS OF ZN(4(1)P(1)) WITH H-2 AND D-2
    UMEMOTO, H
    TSUNASHIMA, M
    TSUNASHIMA, S
    IKEDA, H
    LASER CHEMISTRY, 1995, 15 (2-4) : 123 - 129
  • [24] STUDY OF THE ETA(C)(1 S-1(O)) STATE OF CHARMONIUM FORMED IN PP ANNIHILATIONS AND A SEARCH FOR THE ETA'(C)(2 S-1(O))
    ARMSTRONG, TA
    BETTONI, D
    BHARADWAJ, V
    BIINO, C
    BLANFORD, G
    BORREANI, G
    BROEMMELSIEK, D
    BUZZO, A
    CALABRESE, R
    CECCUCCI, A
    CESTER, R
    CHURCH, M
    DALPIAZ, P
    DALPIAZ, PF
    DIMITROYANNIS, D
    FABBRI, M
    FAST, J
    GIANOLI, A
    GINSBURG, CM
    GOLLWITZER, K
    GOVI, G
    HAHN, A
    HASAN, M
    HSUEH, S
    LEWIS, R
    LUPPI, E
    MACRI, M
    MAJEWSKA, AM
    MANDELKERN, M
    MARCHETTO, F
    MARINELLI, M
    MARQUES, KJ
    MARSH, W
    MARTINI, M
    MASUZAWA, M
    MENICHETTI, E
    MIGLIORI, A
    MUSSA, R
    PALESTINI, S
    PALLAVICINI, M
    PASSAGGIO, S
    PASTRONE, N
    PATRIGNANI, C
    PEOPLES, J
    PETRUCCI, F
    PIA, MG
    PORDES, S
    RAPIDIS, P
    RAY, R
    REID, J
    PHYSICAL REVIEW D, 1995, 52 (09): : 4839 - 4854
  • [25] chi-miR-128-3p和chi-miR-218对Nr1d2基因的靶向调控研究
    王世杰
    张薇依
    王建芳
    毛潮
    隋洁
    贾存灵
    家畜生态学报, 2021, 42 (05) : 12 - 16
  • [26] ESTIMATES OF CHI(CJ)(2P) PRODUCTION-RATES IN BETA-DECAYS AND UPSILON(1S)-DECAYS
    KO, P
    PHYSICAL REVIEW D, 1995, 52 (05) : 3108 - 3110
  • [27] CHI3L1, NTRK2, 1p/19q and IDH Status Predicts Prognosis in Glioma
    Deluche, Elise
    Bessette, Barbara
    Durand, Stephanie
    Caire, Francois
    Rigau, Valerie
    Robert, Sandrine
    Chaunavel, Alain
    Forestier, Lionel
    Labrousse, Francois
    Jauberteau, Marie-Odile
    Durand, Karine
    Lalloue, Fabrice
    CANCERS, 2019, 11 (04):
  • [28] p-phenylenebis(methylene):: a CASSCF study of σ2p2, σ3p1 and σ4 electronic states
    Jean, Y
    THEOCHEM-JOURNAL OF MOLECULAR STRUCTURE, 1998, 424 (1-2): : 29 - 35
  • [29] X-RAY PHOTOELECTRON SPECTROSCOPIC (X-P.E.S.) STUDIES ON INSITU PHOTOINDUCED DECOMPOSITION OF INORGANIC MOLECULAR-IONS .2. 1-NA[CLO-CHI] SYSTEM MECHANISTIC (CHI= 3,4) AND VARIABLE-TEMPERATURE (CHI= 3) INVESTIGATIONS
    COPPERTHWAITE, RG
    LLOYD, J
    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1978, 74 : 2252 - 2264
  • [30] Spectroscopic study of the 7p1/2 and 7p3/2 states in cesium-133
    Williams, W. D.
    Herd, M. T.
    Hawkins, W. B.
    LASER PHYSICS LETTERS, 2018, 15 (09)
12345