A study of electron-muon pair production in 450 GeV/c pBe collisions
Author(s) -
T. P. A. Åkesson,
S. Almehed,
A.L.S. Angelis,
J. Antoš,
H. Atherton,
P. Aubry,
H. W. Bartels,
G. Beaudoin,
J. M. Beaulieu,
H. Beker,
O. Benary,
D. Bettoni,
V. Bisi,
I. Blevis,
H. Bøggild,
W. Cleland,
M. Clemen,
B. Collick,
F. Corriveau,
S. Dagan,
K. Dederichs,
P. Depommier,
N. J. DiGiacomo,
S. DiLiberto,
J. Dodd,
B. A. Dolgoshein,
A. Drees,
S. Eidelman,
H. En’yo,
B. Erlandsson,
M.J. Esten,
C. Fabjan,
P. Fischer,
A. Gaidot,
F. Gibrat-Debu,
P. Giubellino,
P. Glässel,
U. Goerlach,
D. Golubkov,
Richard F. Haglund,
L.A. Hamel,
H. Van Hecke,
V. Hedberg,
R. Heifetz,
A. Hölscher,
Barbara Jacak,
G. Jarlskog,
S. Johannson,
H.W. Kraner,
V. Kroh,
F. Lamarche,
C. Leroy,
D. Lissauer,
G. London,
B. Lörstad,
A. Lounis,
F. Martelli,
A. MarzariChiesa,
M. Masera,
M. A. Mazzoni,
E. Mazzucato,
M. McCubbin,
N. A. McCubbin,
P. L. McGaughey,
F. Meddi,
U. Mjörnmark,
M. T. Muciaccia,
S. Muraviev,
M. Murray,
Matthias Neubert,
P. Nevski,
S. Nilsson,
L.H. Olsen,
Y. Oren,
J.P. Pansart,
Y. M. Park,
A. Pfeiffer,
F. Piuz,
V. Polychronakos,
P. Pomianowski,
G. Poulard,
Michael Price,
D. Rahm,
L. Ramello,
L. Riccati,
G. Romano,
G. Rosa,
L. Šándor,
J. Schukraft,
M. Sekimoto,
M. Seman,
A. Shikonian,
A. Shmeleva,
V. Sidorov,
S. Simone,
Y. Sirois,
H. Sletten,
S. Yu. Smirnov,
W. E. Sondheim,
Karsten Specht,
E. G. Stern,
I. Stumer,
A. V. Sumarokov,
J. W. Sunier,
V. Tcherniatin,
J. Thompson,
V. O. Tikhomirov,
C.M Valine,
A. Vanyashin,
G. Vasseur,
R. Veenhof,
R. Wigmans,
W. Willis,
P. Yepes
Publication year - 1996
Publication title -
zeitschrift für physik c
Language(s) - English
Resource type - Journals
eISSN - 1431-5858
pISSN - 0170-9739
DOI - 10.1007/s002880050262
Subject(s) - physics , muon , charm (quantum number) , nuclear physics , large hadron collider , particle physics , pair production , production (economics) , nucleon , electron , limit (mathematics) , bar (unit) , mathematical analysis , mathematics , meteorology , economics , macroeconomics
We report on the production ofe± μ∓ pairs in 450 GeV/c pBe collisions at the CERN SPS. Theeμ signal, which has average missing energy of 21 GeV, is shown to be consistent with expectations from charm decay, and implies a σ ×B for$$c\bar c$$ production in p-nucleon collisions of 0.63 ± 0.35μb. Alternatively, using an estimate of charm production from other experiments, the data imply a 95% confidence level upper limit of 1.16μb on any new physics process which producese±μ∓.
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