Dirac and Majorana heavy neutrinos at LEP II

被引：5

作者：

Almeida, FML ^{[1
]}

Coutinho, YA ^{[1
]}

Simoes, JAM ^{[1
]}

do Vale, MAB ^{[1
]}

Wulck, S ^{[1
]}

机构：

[1] Univ Fed Rio de Janeiro, Inst Fis, BR-21945970 Rio De Janeiro, Brazil

来源：

EUROPEAN PHYSICAL JOURNAL C | 2001年 / 22卷 / 02期

关键词：

D O I：

10.1007/s100520100798

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The possibility of detecting single heavy Dirac and/or Majorana neutrinos at LEP II is investigated for heavy neutrino masses in the range M-N = (s(1/2), /2 s(1/2)). We study the process e(+)e(-) --> nue(+/-) q(i)(q) over bar (J) as a clear signature for heavy neutrinos. Numerical estimates for cross sections and distributions for the signal and the background are calculated and a Monte Carlo reconstruction of final state particles after hadronization is presented.

引用

页码：277 / 281

页数：5

共 28 条

[1]

ACCIARRI M, HEPEX0011068

[2]

ACHARD P, HEPEX0107015

[3]

AHMAD QR, NUCLEX0106015

[4] SINGLE HEAVY-LEPTON PRODUCTION IN HIGH-ENERGY ELECTRON-POSITRON COLLISIONS [J].

ALMEIDA, FML ;

LOPES, JH ;

SIMOES, JAM ;

QUEIROZ, PP ;

RAMALHO, AJ .

PHYSICAL REVIEW D, 1995, 51 (11) :5990-5995

[5] LOOKING FOR NEW SINGLE HEAVY-LEPTONS IN ELECTRON-POSITRON COLLISIONS [J].

ALMEIDA, FML ;

LOPES, JH ;

SIMOES, JAM ;

PORTO, CM .

PHYSICAL REVIEW D, 1991, 44 (09) :2836-2840

[6] Single neutral heavy lepton production at electron-muon colliders [J].

Almeida, FML ;

Coutinho, YA ;

Simoes, JAM ;

do Vale, MAB .

PHYSICS LETTERS B, 2000, 494 (3-4) :273-279

[7] Neutral heavy lepton production at next high energy e+e- linear colliders -: art. no. 075005 [J].

Almeida, FML ;

Coutinho, YA ;

Simoes, JAM ;

do Vale, MAB .

PHYSICAL REVIEW D, 2001, 63 (07)

[8] Signature for heavy Majorana neutrinos in hadronic collisions [J].

Almeida, FML ;

Coutinho, YA ;

Simoes, JAM ;

do Vale, MAB .

PHYSICAL REVIEW D, 2000, 62 (07) :1-6

[9] NEW FERMIONS AT E+E- COLLIDERS .2. SIGNALS AND BACKGROUNDS [J].

AZUELOS, G ;

DJOUADI, A .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1994, 63 (02) :327-337

[10] R(b) and new physics: A comprehensive analysis [J].

Bamert, P ;

Burgess, CP ;

Cline, JM ;

London, D ;

Nardi, E .

PHYSICAL REVIEW D, 1996, 54 (07) :4275-4300

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