Search for Randall-Sundrum Gravitons in the Diphoton Channel at CDF

ثبت نشده
چکیده

We report on a search for new particles in the diphoton channel using a data sample of 5.4 fb−1 of pp̄ collisions at a center-of-mass energy of 1.96 TeV collected using the CDF II detector at the Fermilab Tevatron. The invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits on the graviton mass of 459 GeV/c2 and 963 GeV/c2, at the 95% confidence level, for coupling parameters (k/MPl) of 0.01 and 0.1 respectively.

برای دانلود 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

Search for Randall-Sundrum gravitons in the diphoton channel at CDF

Citation Aaltonen, T. et al. " Search for Randall-Sundrum gravitons in the diphoton channel at CDF. " Physical Review D 83.1 (2011) : n. pag. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefit...

متن کامل

Search for Randall-Sundrum Gravitons in the Diphoton Channel at CDF

We report on a search for new particles in the diphoton channel using a data sample of 5.4 fb−1 of pp̄ collisions at a center-of-mass energy of 1.96 TeV collected using the CDF II detector at the Fermilab Tevatron. The invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the cross section times branching ratio for the Randall-Sundrum gravito...

متن کامل

Public Note Search for Randall-Sundrum Gravitons in the Diphoton Channel at CDF

We report on a search for new particles in the diphoton channel using a data sample of 5.4 fb−1 of pp̄ collisions at a center-of-mass energy of 1.96 TeV collected using the CDF II detector at the Fermilab Tevatron. The invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the cross section times branching ratio for the Randall-Sundrum gravito...

متن کامل

Search for New Dielectron Resonances and Randall-Sundrum Gravitons at the Collider Detector at Fermilab

A search for new dielectron mass resonances using data recorded by the CDF II detector and corresponding to an integrated luminosity of 5.7 fb−1 is presented. No significant excess over the expected standard model prediction is observed. In this dataset, an event with the highest dielectron mass ever observed (960 GeV/c) was recorded. The results are interpreted in the Randall-Sundrum (RS) mode...

متن کامل

Search for New Physics in Dilepton and Diphoton Final States at CDF

The CDF detector has accumulated a large data sample of p p collisions at s =1.96 TeV at the Fermilab Tevatron. In this report we present the results of searches for physics beyond the Standard Model using final states of 2 leptons or 2 photons using 190 pb −1 to 448 pb −1 of data. No deviation from the predictions of Standard Model was observed. The non-observation was used to derive cross sec...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010