OBSERVATION OF AN EXCESS OF NU-E, NUBAR-E EVENTS IN A BEAM DUMP EXPERIMENT AT 400 GEV

被引：107

作者：

ALIBRAN, P

ARMENISE, N

ARNOLD, R

BARTLEY, JH

BELLOTTI, E

BERTRAND, D

BLAES, R

BLONDEL, A

BLUM, D

BOLOGNESE, T

BONETTI, S

BONNEAUD, G

BOUROTTE, J

BULLOCK, FW

BURMEISTER, H

CARNESECCHI, G

CAVALLI, D

CONFORTO, G

DEGRANGE, B

DEWIT, M

ERRIQUEZ, O

ESCOUBES, B

FIORINI, E

FRODESEN, AG

GILLESPIE, J

HAGUENAUER, M

HEUSSE, P

JACQUET, F

JONES, TW

LUTZ, AM

MATTEUZZI, C

MORFIN, J

MUCIACCIAFOGLI, MT

MUSSET, P

NATALI, S

NGUYENKHAC, U

NUZZO, S

PASCAUD, C

PATTISON, B

PATY, M

PETITJEAN, P

PRICE, M

PULLIA, A

RIESTER, JL

ROGNEBAKKE, A

ROLLIER, M

ROMANO, F

SACTON, J

SKJEGGESTAD, O

SLEEMAN, J

机构：

[1] UNIV BARI, IST FIS, I-70124 BARI, ITALY

[2] UNIV MILAN, IST FIS, I-20133 MILAN, ITALY

[3] IST NAZL FIS NUCL, Milan, ITALY

[4] IST NAZL FIS NUCL, BARI, ITALY

[5] UNIV BERGEN, INST PHYS, N-5014 BERGEN, NORWAY

[6] UNIV LIBRE BRUXELLES, INTER UNIV INST HIGH ENERGIES, B-1050 BRUSSELS, BELGIUM

[7] CERN, CH-1211 GENEVA 23, SWITZERLAND

[8] CTR RECH NUCL, F-67037 STRASBOURG, FRANCE

[9] ECOLE POLYTECH, F-91120 PALAISEAU, FRANCE

[10] UNIV LOUIS PASTEUR, STRASBOURG, FRANCE

[11] UNIV COLL HOSP LONDON, LONDON WC1E 6JJ, ENGLAND

[12] LAB ACCELERATEUR LINEAIRE, ORSAY, FRANCE

来源：

PHYSICS LETTERS B | 1978年 / 74卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(78)90079-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A beam dump experiment has been performed at CERN in Gargamelle using the neutrino facility to look for penetrating particles produced either directly in the beam interaction or by prompt decay of new particles. A total of 32 interactions with a visible energy greater than 10 GeV has been found, classified, aftercorrections, into 18 charged current νμ or νμ, 5.1 neutral current and 8.9 νe or νe charged current events. An excess of νe events remains after all subtractions from any established sources. Results are presented in terms of the product of the cross section and the leptonic decay branching ratio of the possible source. © 1978.

引用

页码：134 / 138

页数：5

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