Tests of Heavy Quarks Substructure ”

نویسنده

  • F. M. RENARD
چکیده

ABSTRiCT We discuss the observability of flavor changing transitions among heavy quarks in e+e-collisions: anomalous thresholds e+e-+& + &', anomalous flavored quarkonia formation e+e-V(Q@) d an anomalous decay modes of heavy quarkonia (Q&)-Q + @, Q + q + 7,. .. etc. We express cross-sections and partial widths in terms of a substructure scale and show what kind of limits can be obtained.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Contact interactions involving right-handed neutrinos and SN 1987A

Nonstandard lepton-quark contact interactions may arise at low energies as a consequence of a common quark and lepton substructure or of heavy boson exchanges, when integrated out. There has recently been renewed interest @1# in contact interactions due to the fact that they are one of the potential explanations of the excess of events reported by H1 @2# and ZEUS @3#, the DESY ep collider at HE...

متن کامل

Higgs Pain? Take a Preon! *

The Higgs mechanism is the favourite cure for the main problem with electroweak unification, namely how to reconcile a gauge theory with the need for massive gauge bosons. This problem does not exist in preon models for quark and lepton substructure with composite Z 0 and W s, which, consequently, also avoid all other theoretical complications and paradoxes with the Higgs mechanism. We present ...

متن کامل

Spectra of Baryons Containing Two Heavy Quarks

The spectra of baryons containing two heavy quarks test the form of the QQ potential through the spin-averaged masses and hyperfine splittings. The mass splittings in these spectra are calculated in a nonrelativistic potential model and the effects of varying the potential studied. The simple description in terms of light quark and pointlike diquark is not yet valid for realistic heavy quark ma...

متن کامل

Tests of flavour independence in heavy quark potential models

We review some rigourous consequences of flavour independence on the spectrum and properties of hadrons in potential models, with emphasis on hadrons with two heavy quarks, such as (bc̄) mesons and (QQq) baryons.

متن کامل

Heavy Quarks and Heavy Quarkonia as Tests of Thermalization

We present here a brief summary of the presentation given at the “Quark Gluon Plasma Thermalization”Workshop in Vienna, Austria in August 2005, directly following the International Quark Matter Conference in Hungary.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1982