MESON SPECTROSCOPY WITH ANTINEUTRONS

被引：46

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

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

LUCHERINI, V

MAGGIORA, A

MARCELLO, S

MARCONI, U

MARGAGLIOTTI, GV

MARON, G

MASONI, A

MASSA, I

MINETTI, B

MORANDO, M

NICHITIU, F

PANZIERI, D

PAULI, G

PICCININI, M

PIRAGINO, G

POLI, M

PUDDU, G

RICCI, RA

机构：

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

[2] IST NAZL FIS NUCL, SEZ TORINO, I-10125 TURIN, ITALY

[3] POLITECN TORINO, I-10125 TURIN, ITALY

[4] UNIV BRESCIA, DIPARTIMENTO ELETTRON AUTOMAZ, BRESCIA, ITALY

[5] IST NAZL FIS NUCL, SEZ TORINO, I-25060 BRESCIA, ITALY

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

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

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

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

[10] IST NAZL FIS NUCL, NAZL LEGNARO LAB, I-30020 LEGNANO, ITALY

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

[12] CERN, PPE DIV, CH-1211 GENEVA 23, SWITZERLAND

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

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

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

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

[17] IST NAZL FIS NUCL, SEZ PADOVA, I-35100 PADUA, ITALY

[18] JOINT INST NUCL RES DUBNA, MOSCOW 101000, USSR

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

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

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

[22] IST NAZL FIS NUCL, SEZ TRIESTE, I-33100 UDINE, ITALY

来源：

PHYSICS LETTERS B | 1992年 / 287卷 / 04期

关键词：

D O I：

10.1016/0370-2693(92)90998-J

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

First results on meson spectroscopy using antineutrons as projectiles are reported. Three-body (pi+ pi+ pi-) and five-body (pi+ pi+ pi+ pi- pi-) final states following the annihilation of 100 to 290 MeV/c antineutrons on hydrogen were analyzed. The (pi+ pi-) invariant mass spectrum in the three-body reaction is accounted for by the rho-0 and f2(1270) resonances, together with an enhancement around 1540 MeV, in the region of the AX(1565) and the f2(1515) resonances, whereas the best fit for the (pi+ pi+ pi- pi-) invariant mass in five-body events shows the already reported structure zeta(1480) and suggests the presence of a second structure around 1650 MeV.

引用

页码：368 / 374

页数：7

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