PROPOSED SEARCH FOR RESONANT STATES IN POSITRON-ELECTRON SCATTERING USING A POSITRON GAS-TARGET

被引：4

作者：

COWAN, TE ^{[1
]}

HOWELL, RH ^{[1
]}

ROHATGI, RR ^{[1
]}

FAJANS, J ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1991年 / 56-7卷

关键词：

D O I：

10.1016/0168-583X(91)96105-T

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Narrow correlated positron-electron peaks discovered in superheavy nuclear collisions may be signatures for previously undetected neutral particlelike objects having masses of 1-2 MeV/c2. We have designed an experiment to definitively test this hypothesis by searching for resonant states formed directly in the scattering of monoenergetic electrons incident on a gas of cold positrons confined magnetically in a Maimberg trap. This technique will provide a hundredfold improvement in sensitivity to e+e- resonances compared to previous positron-beam, thin-foil scattering experiments. Together with a recoil-shadow technique, this experiment will explore a five decade range in neutral-particle lifetimes (10(-13) to 10(-8) s) which cannot be probed directly by other methods.

引用

页码：599 / 603

页数：5

共 18 条

[1] OBSERVATION OF CORRELATED NARROW-PEAK STRUCTURES IN POSITRON AND ELECTRON-SPECTRA FROM SUPERHEAVY COLLISION SYSTEMS [J].

COWAN, T ;

BACKE, H ;

BETHGE, K ;

BOKEMEYER, H ;

FOLGER, H ;

GREENBERG, JS ;

SAKAGUCHI, K ;

SCHWALM, D ;

SCHWEPPE, J ;

STIEBING, KE ;

VINCENT, P .

PHYSICAL REVIEW LETTERS, 1986, 56 (05) :444-447

[2]

Cowan T. E., 1987, Physics of Strong Fields. Proceedings of a NATO Advanced Study Institute, P111

[3]

COWAN TE, 1989, B AM PHYS SOC, V34, P1812

[4]

COWAN TE, 1988, THESIS YALE U NEW HA

[5]

COWAN TE, 1990, FAL M APS DIV NUCL P

[6]

COWAN TM, IN PRESS

[7] CORRELATED 2-PHOTON LINES FROM 6-MEV/NUCLEON U+TH, U+U, AND TH+TH COLLISIONS [J].

DANZMANN, K ;

MEYERHOF, WE ;

MONTENEGRO, EC ;

DILLARD, E ;

HULSKOTTER, HP ;

GUARDALA, N ;

SPOONER, DW ;

KOTLINSKI, B ;

CLINE, D ;

KAVKA, A ;

BEAUSANG, CW ;

BURDE, J ;

DELEPLANQUE, MA ;

DIAMOND, RM ;

MCDONALD, RJ ;

MACCHIAVELLI, AO ;

RUDE, BS ;

STEPHENS, FS ;

MOLITORIS, JD .

PHYSICAL REVIEW LETTERS, 1989, 62 (20) :2353-2356

[8] LOW-ENERGY, HIGH-INTENSITY POSITRON BEAM EXPERIMENTS WITH A LINAC [J].

HOWELL, RH ;

FLUSS, MJ ;

ROSENBERG, IJ ;

MEYER, P .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1985, 10-1 (MAY) :373-377

[9] SEARCH FOR LONG-LIVED NEUTRAL RESONANCES IN BHABHA SCATTERING AROUND 1.8MEV/C2 [J].

JUDGE, SM ;

KRUSCHE, B ;

SCHRECKENBACH, K ;

TSERTOS, H ;

KIENLE, P .

PHYSICAL REVIEW LETTERS, 1990, 65 (08) :972-975

[10] ON THE MOMENTUM CORRELATION OF (E+E-) PAIRS OBSERVED IN U+U AND U+PB COLLISIONS [J].

KOENIG, W ;

BERDERMANN, E ;

BOSCH, F ;

HUCHLER, S ;

KIENLE, P ;

KOZHUHAROV, C ;

SCHROTER, A ;

SCHUHBECK, S ;

TSERTOS, H .

PHYSICS LETTERS B, 1989, 218 (01) :12-16

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