Off-diagonal helicity density matrix elements for vector mesons produced at LEP

被引：0
|
作者：
Anselmino, M
Bertini, M
Murgia, F
Quintairos, P
机构：
[1] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy
[2] INFN, Sez Torino, I-10125 Turin, Italy
[3] Inst Phys Nucl, F-69622 Villeurbanne, France
[4] Ist Nazl Fis Nucl, Sez Cagliari, I-09127 Cagliari, Italy
[5] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil
来源：
EUROPEAN PHYSICAL JOURNAL C | 1998年 / 2卷 / 03期
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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：
Final state <q(q)over bar> interactions may give origin to non-zero values of the off-diagonal element rho(1,-1) of the helicity density matrix of vector mesons produced in e(+)e(-) annihilations, as confirmed by recent OPAL data on phi and D*'s. Predictions are given for rho(1,-1) of several mesons produced at large z and small p(T), i.e. collinear with the parent jet; the values obtained for phi and D* are in agreement with data.
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页码：539 / 544
页数：6
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