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

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