(p)over-bar-p, (p)over-bar-D, (p)over-bar4 He annihilation cross sections at low energy

被引：0

作者：

Tessaro, S

机构：

[1] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy

[2] Ist Nazl Fis Nucl, I-34127 Trieste, Italy

来源：

NUCLEAR PHYSICS A | 1999年 / 655卷 / 1-2期

关键词：

D O I：

10.1016/S0375-9474(99)00206-7

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

New measurements of the (p) over bar p annihilation cross section have been performed with the OBELIX apparatus between 37 and 70 MeV/c. From previous samples of data it was already clear that the 1/p behaviour for the annihilation cross section is drastically modified at very low momenta, due to the Coulomb interaction. However, at the lowest measured momentum (43.6 MeV/c), the annihilation cross section was unexpectedly high; this evidence suggested a more accurate investigation of this region. Furthermore, measurements of annihilation cross section have been performed with (p) over bar impinging on D-2 and He-4 targets.

引用

页码：230C / 235C

页数：6

共 11 条

[1]

ADAMO A, 1992, SOV J NUCL PHYS+, V55, P1732

[2] ANTIPROTON SLOWING-DOWN IN H-2 AND HE AND EVIDENCE OF NUCLEAR STOPPING POWER [J].

AGNELLO, M ;

BELLI, G ;

BENDISCIOLI, G ;

BERTIN, A ;

BOTTA, E ;

BRESSANI, T ;

BRUSCHI, M ;

BUSSA, MP ;

BUSSO, L ;

CALVO, D ;

CEREDA, B ;

CERELLO, PG ;

CICALO, C ;

CORRADINI, M ;

COSTA, S ;

DECASTRO, S ;

DONZELLA, A ;

FELICIELLO, A ;

FERRERO, L ;

FILIPPI, A ;

FILIPPINI, V ;

FONTANA, A ;

GALLI, D ;

GARFAGNINI, R ;

GIACOBBE, B ;

GIANOTTI, P ;

GRASSO, A ;

GUARALDO, C ;

IAZZI, F ;

LANARO, A ;

RIZZINI, EL ;

LUCHERINI, V ;

MARCELLO, S ;

MARCONI, U ;

MASONI, A ;

MINETTI, B ;

MONTAGNA, P ;

MORANDO, M ;

NICHITIU, F ;

PANZIERI, D ;

PAULI, G ;

PICCININI, M ;

PUDDU, G ;

ROSSETTO, E ;

ROTONDI, A ;

ROZHDESTVENSKY, AM ;

SAINO, A ;

SALVINI, P ;

SANTI, L ;

SAPOZHNIKOV, MG .

PHYSICAL REVIEW LETTERS, 1995, 74 (03) :371-374

[3] MEASUREMENT OF THE PBARP ANNIHILATION CROSS-SECTIONS AT VERY LOW ENERGIES [J].

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, D ;

FALOMKIN, IV ;

FAVA, L ;

FELICIELLO, A ;

FERRERO, L ;

FILIPPINI, V ;

GARFAGNINI, R ;

GASTALDI, U ;

GIANOTTI, P ;

GRASSO, A ;

GUARALDO, C ;

IAZZI, F ;

LANARO, A ;

RIZZINI, EL ;

LOMBARDI, M ;

MACCIOTTA, MP ;

MAGGIORA, A ;

MARCELLO, S ;

MARCONI, U ;

MARGAGLIOTTI, GV ;

MARON, G ;

MASALA, M ;

MASONI, A ;

MASSA, I ;

MINETTI, B ;

MORANDO, M ;

MORGANTI, M ;

PANZIERI, D ;

PAULI, G ;

PICCININI, M ;

PIRAGINO, R ;

POLI, M ;

PONTECORVO, GB ;

PUDDU, G .

PHYSICS LETTERS B, 1991, 256 (3-4) :349-353

[4] ANTIPROTON HELIUM ANNIHILATION AROUND 45 MEV/C [J].

BALESTRA, F ;

BARBIERI, R ;

BATUSOV, YA ;

BENDISCIOLI, G ;

BOSSOLASCO, S ;

BREIVIK, FO ;

BUSSA, MP ;

BUSSO, L ;

GUARALDO, C ;

FALOMKIN, IV ;

FERRERO, L ;

FILIPPINI, V ;

HAATUFT, A ;

HALSTEINSLID, A ;

JACOBSEN, T ;

RIZZINI, EL ;

MAGGIORA, A ;

MASALA, M ;

MYKLEBOST, K ;

OLSEN, JM ;

PANZIERI, D ;

PIRAGINO, G ;

PONTECORVO, GB ;

ROTONDI, A ;

ROZHDESTVENSKY, AM ;

SALVINI, P ;

SAPOZHNIKOV, MG ;

SORENSEN, SO ;

TOSELLO, F ;

TRETYAK, VI ;

ZENONI, A .

PHYSICS LETTERS B, 1989, 230 (1-2) :36-40

[5]

BENEDETTINI A, 1997, NUCL PHYS B A, V56, pC58

[6] (p)over-bar-p annihilation cross section at very low energy [J].

Bertin, A ;

Bruschi, M ;

Capponi, M ;

Cereda, B ;

DeCastro, S ;

Ferretti, A ;

Galli, D ;

Giacobbe, B ;

Marconi, U ;

Piccinini, M ;

Cesari, NS ;

Spighi, R ;

Vecchi, S ;

Vezzani, A ;

Villa, M ;

Vitale, A ;

Zoccoli, A ;

Belli, G ;

Corradini, M ;

Donzella, A ;

Rizzini, EL ;

Venturelli, L ;

Zenoni, A ;

Cicalo, C ;

Masoni, A ;

Puddu, G ;

Serci, S ;

Temnikov, P ;

Usai, G ;

Costa, S ;

Ableev, VG ;

Denisov, OY ;

Gorchakov, OE ;

Prakhov, SN ;

Rozhdestvensky, AM ;

Sapozhnikov, MG ;

Tretyak, VI ;

Gianotti, P ;

Guaraldo, C ;

Lanaro, A ;

Lucherini, V ;

Nichitiu, F ;

Petrascu, C ;

Rosca, A ;

Cavion, C ;

Gastaldi, U ;

Lombardi, M ;

Vannucci, L ;

Vedovato, G ;

Andrighetto, A .

PHYSICS LETTERS B, 1996, 369 (01) :77-85

[7] PERFORMANCES OF THE OBELIX TIME-OF-FLIGHT SYSTEM [J].

BONAZZOLA, GC ;

BOTTA, E ;

BRESSANI, T ;

CALVO, D ;

COSTA, S ;

DISEP, F ;

FELICIELLO, A ;

FILIPPI, A ;

MARCELLO, S ;

MIRFAKHRAI, N ;

PARENA, D ;

ROSSETTO, E ;

TENCONE, B ;

AGNELLO, M ;

IAZZI, F ;

MINETTI, B ;

ADAMO, A ;

CICALO, C ;

LAI, A ;

MACCIOTTA, P ;

MASONI, A ;

MUSA, L ;

PUDDU, G ;

SERCI, S ;

TEMNIKOV, P ;

USAI, G ;

GIANOTTI, P ;

LUCHERINI, V .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 356 (2-3) :270-279

[8]

CARBONELL J, 1993, HYPERFINE INTERACT, V76, P327

[9] (p)over-bar-p low energy parameters from annihilation cross section data [J].

Carbonell, J ;

Protasov, KV ;

Zenoni, A .

PHYSICS LETTERS B, 1997, 397 (3-4) :345-349

[10]

IAZZI F, 1998, IN PRESS P INPC 98 P

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