A MEASUREMENT OF THE K+K-/PI+PI- RATIO FROM (P)BAR ANNIHILATION IN DEUTERIUM AND HYDROGEN GAS

被引：17

作者：

ADAMO, A

AGNELLO, M

BALESTRA, F

BELLI, G

BENDISCIOLI, G

BERTIN, A

BOCCACCIO, P

BONAZZOLA, GC

BRESSANI, T

BRUSCHI, M

BUSSA, MP

BUSSO, L

CALVO, D

CAPPONI, M

CORRADINI, M

COSTA, S

DECASTRO, S

DISEP, F

FALOMKIN, IV

FAVA, L

FELICIELLO, A

FERRERO, L

FILIPPINI, V

GALLI, D

GARFAGNINI, R

GASTALDI, U

GIANOTTI, P

GRASSO, A

GUARALDO, C

IAZZI, F

LANARO, A

RIZZINI, EL

LOMBARDI, M

MAGGIORA, A

MARCELLO, S

MARCONI, U

MARGAGLIOTTI, GV

MARON, G

MASONI, A

MASSA, I

MINETTI, B

MORANDO, M

PANZIERI, D

PAULI, G

PICCININI, M

PIRAGINO, G

POLI, M

PONTECORVO, GB

PUDDU, G

RICCI, RA

机构：

[1] IST NAZL FIS NUCL, I-10125 TURIN, ITALY

[2] UNIV BRESCIA, DIPARTIMENTO AUTOM IND, I-25060 BRESCIA, ITALY

[3] UNIV PAVIA, DIPARTIMENTO FIS NUCL & TEOR, I-27100 PAVIA, ITALY

[4] IST NAZL FIS NUCL, I-27100 PAVIA, ITALY

[5] UNIV BOLOGNA, DIPARTIMENTO FIS, I-40126 BOLOGNA, ITALY

[6] IST NAZL FIS NUCL, I-40100 BOLOGNA, ITALY

[7] IST NAZL FIS NUCL, LAB NAZL LEGNARO, I-35100 PADUA, ITALY

[8] UNIV TURIN, IST FIS, I-10125 TURIN, ITALY

[9] CERN, PPE, CH-1211 GENEVA 23, SWITZERLAND

[10] JOINT INST NUCL RES, MOSCOW 101000, USSR

[11] IST NAZL FIS NUCL, LAB NAZL PRASCATI, I-00044 FRASCATI, ITALY

[12] UNIV TRIESTE, IST FIS, I-34127 TRIESTE, ITALY

[13] IST NAZL FIS NUCL, I-34127 TRIESTE, ITALY

[14] UNIV PADUA, DIPARTIMENTO FIS, I-35100 PADUA, ITALY

[15] UNIV FLORENCE, DIPARTIMENTO ENERGET, I-50121 FLORENCE, ITALY

[16] UNIV UDINE, IST FIS, I-33100 UDINE, ITALY

[17] IST NAZL FIS NUCL, I-33100 UDINE, ITALY

[18] IST NAZL FIS NUCL, I-09100 CAGLIARI, ITALY

[19] POLITECN TORINO, TURIN, ITALY

来源：

PHYSICS LETTERS B | 1992年 / 284卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(92)90459-H

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have measured the K+ K-/pi+-pi- ratio R from pBAR annihilations in gaseous D2 and H-2 at atmospheric pressure. The measurement was performed with the OBELIX spectrometer. From the measured value in gaseous D2 (0.27+/-0.02) we infer a P wave contribution to p-pBAR annihilation in D2 of (18+/-7)%.

引用

页码：448 / 452

页数：5

共 10 条

[1] ADAMO A, 1991, IN PRESS JUL P WORKS
[2] A MEASUREMENT OF THE S-WAVE AND P-WAVE CONTENT OF ANTIPROTON ANNIHILATION AT REST INTO 2 PIONS IN LIQUID DEUTERIUM
ANGELOPOULOS, A
APOSTOLAKIS, A
ARMSTRONG, TA
BASSALLECK, B
BUECHE, G
FERO, M
GEE, M
GRAF, N
KOCH, H
LEWIS, RA
MANDELKERN, M
MINOR, E
POTH, H
ROZAKI, H
SAKELLIOU, L
SCHULTZ, J
SCHWERTEL, J
SMITH, GA
SOULLIERE, MJ
USHER, T
WOLFE, DM
[J]. PHYSICS LETTERS B, 1988, 212 (01) : 129 - 132
[3] COMPARISON OF REACTION PBARP-]K0KBAR0 AT REST IN HYDROGEN AND DEUTERIUM - TEST OF S-STATE ANNIHILATION DOMINANCE
BIZZARRI, R
CIAPETTI, G
DORE, U
GASPERO, M
LAAKSO, I
MARZANO, F
MONETI, GC
[J]. NUCLEAR PHYSICS B, 1974, B 69 (02) : 307 - 316
[4] ANGULAR-MOMENTUM STATES IN ANTIPROTON-NUCLEON ANNIHILATIONS AT REST IN DEUTERIUM
BIZZARRI, R
CIAPETTI, G
DORE, U
GASPERO, M
LAAKSO, I
MARZANO, F
MONETI, GC
[J]. NUCLEAR PHYSICS B, 1974, B 69 (02) : 298 - 306
[5] BONAZZOLA GC, 1991, NUCL INSTRUM METH A, V306, P307
[6] PBARP ANNIHILATION INTO PI+PI- AND K+K- FROM ATOMIC P-STATES
DOSER, M
BOTLO, M
AHMAD, S
AMSLER, C
ARMENTEROS, R
AULD, EG
AXEN, DA
BAILEY, D
BARLAG, S
BEER, GA
BIZOT, JC
BUTLER, J
COMYN, M
DAHME, W
DELCOURT, B
DUCH, KD
ERDMAN, KL
FELDDAHME, F
GASTALDI, U
HEEL, M
HOWARD, B
HOWARD, R
JEANJEAN, J
KALINOWSKY, H
KAYSER, F
KLEMPT, E
LAA, C
LANDUA, R
MARSHALL, GM
MAY, B
NGUYEN, H
PREVOT, N
RIEDLBERGER, J
ROBERTSON, LP
SABEV, C
SCHAEFER, U
SCHREIBER, O
STRAUMANN, U
TRUOL, P
VONACH, H
WHITE, BL
WODRICH, RW
ZIEGLER, M
[J]. NUCLEAR PHYSICS A, 1988, 486 (3-4) : 493 - 511
[7] GASTALDI U, 1990, MESON SPECTROSCOPY L
[8] OBSERVATIONS ON PBARD ANNIHILATIONS AT REST INTO 2 PIONS
GRAY, L
PAPADOPOULOU, T
SIMOPOULOU, E
VAYAKI, A
KALOGEROPOULOS, T
ROY, J
[J]. PHYSICAL REVIEW LETTERS, 1973, 30 (21) : 1091 - 1094
[9] ANNIHILATION OF ANTIPROTONS AT REST IN H-2 AND D-2 - S-STATE VERSUS P-STATE CAPTURE
REIFENROTHER, G
KLEMPT, E
[J]. PHYSICS LETTERS B, 1990, 245 (01) : 129 - 136
[10] ANTIPROTON ANNIHILATION AT REST IN NITROGEN AND DEUTERIUM GAS
RIEDLBERGER, J
AMSLER, C
DOSER, M
STRAUMANN, U
TRUOL, P
BAILEY, D
BARLAG, S
GASTALDI, U
LANDUA, R
SABEV, C
DUCH, KD
HEEL, M
KALINOWSKY, H
KAYSER, F
KLEMPT, E
MAY, B
SCHREIBER, O
WEIDENAUER, P
ZIEGLER, M
DAHME, W
FELDDAHME, F
SCHAEFER, U
WODRICH, WR
AHMAD, S
BIZOT, JC
DELCOURT, B
JEANJEAN, J
NGUYEN, H
PREVOT, N
AULD, EG
AXEN, DA
ERDMAN, KL
HOWARD, B
HOWARD, R
WHITE, BL
COMYN, M
BEER, G
MARSHALL, GM
ROBERTSON, LP
BOTLO, M
LAA, C
VONACH, H
[J]. PHYSICAL REVIEW C, 1989, 40 (06): : 2717 - 2731

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