J/ψ production via χc decays in 920 GeV pA interactions

被引：33

作者：

Abt, I ^{[1
]}

Adams, M

Albrecht, H

Amaral, V

Amorim, A

Aplin, SJ

Arefiev, A

Ariño, I

Atiya, M

Aushev, V

Bagaturia, Y

Baghshetsyan, R

Balagura, V

Bargiotti, M

Barsuk, S

Barsukova, O

Bassetti, V

Bastos, J

Bauer, C

Bauer, TS

Beck, M

Belkov, A

Belotelov, I

Belyaev, I

Berkhan, K

Bertin, A

Bobchenko, B

Böcker, M

Bogatyrev, A

Bohm, G

Borgmeier, C

Bräuer, M

Broemmelsiek, D

Bruinsma, M

Bruschi, M

Buchholz, P

Buchler, M

Buran, T

Capeán, M

Capponi, M

Carvalho, J

Chamanina, J

Chen, BX

Chistov, R

Chmeissani, M

Christensen, A

Conde, P

Cruse, C

Dam, M

机构：

[1] Univ Texas, Dept Phys, Austin, TX 78712 USA

[2] Univ Barcelona, Fac Fis, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

[3] Inst High Energy Phys, Beijing 100039, Peoples R China

[4] Tsinghua Univ, Inst Engn Phys, Beijing 100084, Peoples R China

[5] Humboldt Univ, Inst Phys, D-10115 Berlin, Germany

[6] Univ Bologna, Dipartmento Fis, I-40126 Bologna, Italy

[7] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[8] Univ Cincinnati, Dept Phys, Cincinnati, OH 45221 USA

[9] LIP Coimbra & Lisboa, P-3004516 Coimbra, Portugal

[10] Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[11] Wayne State Univ, Dept Phys & Astron, Detroit, MI 48202 USA

[12] Univ Dortmund, Inst Phys, D-44227 Dortmund, Germany

[13] Northwestern Univ, Evanston, IL 60208 USA

[14] DESY, D-22603 Hamburg, Germany

[15] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

[16] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[17] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[18] Univ Houston, Dept Phys, Houston, TX 77204 USA

来源：

PHYSICS LETTERS B | 2003年 / 561卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(03)00407-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using data collected by the HERA-B experiment, we have measured the fraction of J/psi's produced via radiative chi(c) decays in interactions of 920 GeV protons with carbon and titanium targets. We obtained R-chic = 0.32 +/- 0.06(stat) +/- 0.04(sys) for the fraction of J/psi from chi(c) decays averaged over proton-carbon and proton-titanium collisions. This result is in agreement with previous measurements and is compared with theoretical predictions. (C) 2003 Published by Elsevier Science B.V.

引用

页码：61 / 72

页数：12

共 32 条

[1] Production of J/psi mesons from chi(c) meson decays in p(p)over-bar collisions at root s=1.8 TeV
Abe, F
Akimoto, H
Akopian, A
Albrow, MG
Amendolia, SR
Amidei, D
Antos, J
Aota, S
Apollinari, G
Asakawa, T
Ashmanskas, W
Atac, M
Azfar, F
AzziBacchetta, P
Bacchetta, N
Badgett, W
Bagdasarov, S
Bailey, MW
Bao, J
deBarbaro, P
BarbaroGaltieri, A
Barnes, VE
Barnett, BA
Barone, M
Barzi, E
Bauer, G
Baumann, T
Bedeschi, F
Behrends, S
Belforte, S
Bellettini, G
Bellinger, J
Benjamin, D
Benlloch, J
Bensinger, J
Benton, D
Beretvas, A
Berge, JP
Berryhill, J
Bertolucci, S
Bevensee, B
Bhatti, A
Biery, K
Binkley, M
Bisello, D
Blair, RE
Blocker, C
Bodek, A
Bokhari, W
Bolognesi, V
[J]. PHYSICAL REVIEW LETTERS, 1997, 79 (04) : 578 - 583
[2] Abe K, 2002, PHYS REV LETT, V88, DOI [10.1103/PhysRevLett.88.052002, 10.1103/PhysRevLett.88.181803]
[3] Abt I, 2003, EUR PHYS J C, V26, P345, DOI 10.1140/epjc/s2002-01071-8
[4] Production of J/psi, psi' and Upsilon in 800 GeV/c proton-silicon interactions
Alexopoulos, T
Antoniazzi, L
Arenton, M
Ballagh, HC
Bingham, H
Blankman, A
Block, M
Boden, A
Bonomi, G
Borodin, SV
Budagov, J
Cao, ZL
Cataldi, G
Chen, TY
Clark, K
Cline, D
Conetti, S
Cooper, M
Corti, G
Cox, B
Creti, P
Dukes, C
Durandet, C
Elia, V
Erwin, AR
Evangelista, E
Fortney, L
Golovatyuk, V
Gorini, E
Grancagnolo, F
HaganIngram, K
Haire, M
Hanlet, P
He, M
Introzzi, G
Jenkins, M
Jennings, J
Judd, D
Kononenko, W
Kowald, W
Lau, K
Lawry, T
Ledovskoy, A
Liguori, G
Lys, J
Mazur, PO
McManus, AP
Misawa, S
Mo, GH
Murphy, CT
[J]. PHYSICS LETTERS B, 1996, 374 (1-3) : 271 - 276
[5] Alexopoulos T, 2000, PHYS REV D, V62, DOI 10.1103/PhysRevD.62.032006
[6] Colorless states in perturbative QCD: Charmonium and rapidity gaps
Amundson, JE
Eboli, OJP
Gregores, EM
Halzen, F
[J]. PHYSICS LETTERS B, 1996, 372 (1-2) : 127 - 132
[7] [Anonymous], DESYPRC9501
[8] PRODUCTION OF J/PSI VIA PSI' AND CHI DECAY IN 300-GEV/C PROTON-NUCLEON AND PI+/--NUCLEON INTERACTIONS
ANTONIAZZI, L
ARENTON, M
CAO, Z
CHEN, T
CONETTI, S
COX, B
DELCHAMPS, S
FORTNEY, L
GUFFEY, K
HAIRE, M
IAONNOU, P
JENKINS, CM
JUDD, DJ
KOURKOUMELIS, C
MANOUSAKISKATSIKAKIS, A
KUZMINSKI, J
LECOMPTE, T
MARCHIONNI, A
HE, M
MAZUR, PO
MURPHY, CT
PRAMANTIOTIS, P
RAMEIKA, R
RESVANIS, LK
ROSATI, M
ROSEN, J
SHEN, C
SHEN, Q
SIMARD, A
SMITH, RP
SPIEGEL, L
STAIRS, DG
TAN, Y
TESAREK, RJ
TURKINGTON, T
TURNBULL, L
TURKOT, F
TZAMARIAS, S
VOULGARIS, G
WAGONER, DE
WANG, C
YANG, W
YAO, N
ZHANG, N
ZHANG, X
ZIOULAS, G
ZOU, B
[J]. PHYSICAL REVIEW LETTERS, 1993, 70 (04) : 383 - 386
[9] AVONI G, 2001, P 9 C CAL PART PHYS, P77
[10] HADRONIC PRODUCTION OF J-PSI AND UPSILON - TRANSVERSE-MOMENTUM DISTRIBUTIONS
BAIER, R
RUCKL, R
[J]. PHYSICS LETTERS B, 1981, 102 (05) : 364 - 370

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