Ερευνητικό υλικό ΕΚΠΑ

MEASUREMENT OF INCLUSIVE PRODUCTION OF LIGHT MESON RESONANCES IN
HADRONIC DECAYS OF THE Z0

Αγγλικά

A study of inclusive production of the meson resonances rho0, K*0
(892), f0(975) and f2(1270) in hadronic decays of the Z0 is presented.
The measured mean meson multiplicity per hadronic event is 0.83 +/- 0.14
for the rho0, 0.64 +/- 0.24 for the K*0(892). 0.10 +/- 0.04 for the
f0(975) in the momentum range p > 0.05p(beam) (x(p) > 0.05) and 0.11 +/-
0.05 for the f2 (1270) for x(p) > 0. 1. These values and the
corresponding differential cross sections (1/sigma(hadr)) dsigma/dx(p)
for the vector mesons are in good agreement with the predictions of the
JETSET 7.3 PS and HFRWIG 5.4 models. The f2 (1270) production is
overestimated by HERWIG but its x(p)-shape is correctly reproduced. The
measured ratios of the production cross sections sigma
(f2(1270))/sigma(rho0) = 0.22 +/- 0.08 and
sigma(f2(1270))/sigma(f0(975)) = 3(-1)+7 for x(p) > 0.1 are consistent
with the results obtained in hadronic reactions.

1993

ABREU, P
ADAM, W
ADYE, T
AGASI, E
ALEKSEEV, GD and
ALGERI, A
ALLEN, P
ALMEHED, S
ALVSVAAG, SJ
AMALDI, U and
ANASSONTZIS, EG
ANDREAZZA, A
ANTILOGUS, P
APEL, WD and
APSIMON, RJ
ASMAN, B
AUGUSTIN, JE
AUGUSTINUS, A
BAILLON,
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BARAO, F
BARATE, R
BARBIELLINI, G and
BARDIN, DY
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BARONCELLI, A
BARRING, O
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BATTAGLIA, M
BAUBILLIER, M
BECKS,
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BEGALLI, M
BEILLIERE, P
BELOKOPYTOV, Y
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BENVENUTI, AC
BERGGREN, M and
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BIANCHI, F
BILENKY, MS
BILLOIR, P
BJARNE, J
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BLYTH, S
BOCCI, V
BOGOLUBOV, PN
BOLOGNESE,
T
BONESINI, M
BONIVENTO, W
BOOTH, PSL
BORGEAUD, P and
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PHYSICS LETTERS B

Elsevier

298

1-2

236-246

https://doi.org/10.1016/0370-2693(93)91736-7

10.1016/0370-2693(93)91736-7

https://pergamos.lib.uoa.gr/uoa/dl/object/3045505