Effects of anomalous couplings of quarks on prompt photon production

نویسندگان

  • Kingman Cheung
  • Dennis Silverman
چکیده

Prompt photon production is sensitive to the anomalous couplings of gluons to quarks, because it is mainly produced by quark-gluon scattering. We will examine the effects of the anomalous chromoelectric and chromomagnetic dipole moment couplings of quarks on prompt photon production. Using the data collected by CDF and D0 at the Fermilab Tevatron we put a bound on these anomalous couplings. We also estimate the sensitivity of various future high energy collider experiments to these anomalous couplings. @S0556-2821~97!03005-1#

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

Limits on Anomalous Couplings of Quarks From Prompt Photon Data

Prompt photon production has been known to be a sensitive probe to the gluon luminosity inside a hadron because it is mainly produced by quark-gluon scattering. For the same reason prompt photon production should also be sensitive to the anomalous couplings of gluons to quarks. We will examine the effects of two specific anomalous couplings – chromoelectric and chromomagnetic dipole moments of ...

متن کامل

ER - 40757 - 083 Limits on Anomalous Couplings of Quarks From Prompt

Prompt photon production has been known to be a sensitive probe to the gluon luminosity inside a hadron because it is mainly produced by quark-gluon scattering. For the same reason prompt photon production should also be sensitive to the anomalous couplings of gluons to quarks. We will examine the effects of two specific anomalous couplings – chromoelectric and chromomagnetic dipole moments of ...

متن کامل

Can we observe weak anomalous couplings of heavy quarks through three-jet events?

The rates and corresponding jet distributions for the decay 2 t b&g and the process e+e+ tfg may be sensitive to anomalous dipole-like couplings of heavy quarks to the photon and 2. In the b-quark case, after updating our previous analysis on the constraints imposed by current experiments on Zbb anomalous couplings, we show that the variation of these couplings within their presently allowed ra...

متن کامل

Probing New Physics in Charm Couplings with Kaon and Other Hadron Processes

It is possible that the low-energy effects of physics beyond the standard model can be parametrized mainly by anomalous couplings of quarks to the W boson. Such couplings can generate potentially significant contributions to various transitions that can be probed by current and future experiments. This work explores constraints on anomalous charm-W couplings from a number of CP-conserving and -...

متن کامل

Associated production of Higgs bosons and heavy quarks at photon colliders

The idea of fermion mass generation through Yukawa couplings between Higgs bosons and fermions may be tested by their associated production at future linear colliders ( LC ). We study the production mechanism in the minimal supersymmeric standard model at photon colliders that can be realized by the laser back-scattering technique at the LC. We find that the cross sections for the production of...

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 1996