Bulletin of the American Physical Society
2007 APS April Meeting
Volume 52, Number 3
Saturday–Tuesday, April 14–17, 2007; Jacksonville, Florida
Session C14: Searches I |
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Sponsoring Units: DPF Chair: Todd Adams, Florida State University Room: Hyatt Regency Jacksonville Riverfront City Terrace 10 |
Saturday, April 14, 2007 1:30PM - 1:42PM |
C14.00001: Search for High Mass Resonances decaying to $e\mu$, $e\tau$ and $\mu\tau$ at CDF Yanjun Tu, Anadi Canepa, Nigel Lockyer, Pasha Murat We present a search for high mass resonances based on 1~$\rm fb^{-1}$ of Tevatron Run II data collected with the CDF detector in $\sqrt{s}$ = $1.96$ TeV proton anti-proton collisions. The search is performed as a blind analysis in final states with two leptons of different flavor, such as $e\mu$, $e\tau$ and $\mu\tau$. We discuss the identification of tau leptons at hadron colliders and assess the sensitivity of the search in several models of physics beyond the Standard Model. [Preview Abstract] |
Saturday, April 14, 2007 1:42PM - 1:54PM |
C14.00002: Search for Fermiophobic Higgs Boson in the 3$\gamma+X$ Final States Oleksiy Atramentov A search for the fermiophobic Higgs boson in the two Higgs doublet and the triplet Higgs models is performed using 0.8 fb$^{-1}$ of data collected by the D0 detector at the Fermilab Tevatron accelerator. The signal would manifest itself as an excess of 3$\gamma+X$ events over the Standard Model background. As no such excess is observed, the limits on the fermiophobic Higgs boson production are set. [Preview Abstract] |
Saturday, April 14, 2007 1:54PM - 2:06PM |
C14.00003: Search for Higgs Boson Produced in Association with b quarks with Higgs Decaying into $\tau^+\tau^-$ Peter Svoisky A search for the Higgs boson in the Minimal Supersymmetric Standard Model (MSSM) is performed in the channel where one tau decays into a muon and the other one decays hadronically, and btag is used for b-jet identification. The studies have been performed using 1 fb$^{-1}$ of data collected with the D0 detector at the Tevatron collider. [Preview Abstract] |
Saturday, April 14, 2007 2:06PM - 2:18PM |
C14.00004: Search for Technicolor Production at D0 Satish Desai One of the most important unresolved issues in particle physics is the nature of electroweak symmetry breaking. In the Standard Model, this question is addressed by the Higgs field, but alternate models have been proposed. One such model is Technicolor, which predicts a wide array of heavy composite particles. A search for $\rho_T\rightarrow W\pi_T\rightarrow\ell\nu bq$ in data collected at Run II of the D0 detector is presented, and a limit is set on the Technicolor particle production in $p\bar{p}$ collisions. [Preview Abstract] |
Saturday, April 14, 2007 2:18PM - 2:30PM |
C14.00005: Search for neutral MSSM Higgs bosons in the $\tau\tau$ decay channel at CDF Cristobal Cuenca, Anton Anastassov, John Conway, Dongwook Jang, Amit Lath We present the results of a search for neutral MSSM Higgs bosons produced in proton-antiproton collisions at $\sqrt{s}$=1.96 TeV. This search was aimed at the $\tau\tau$ decay of the Higgs, with a new large data sample collected by the CDF Run II detector. The $\tau\tau$ decay channel is an excellent probe to Higgs production at the Tevatron Collider. We consider three different modes in this search: $\tau_{e}\tau_{\mu}$, $\tau_{e}\tau_{had}$ and $\tau_{\mu}\tau_{had}$ where the indices denote the $\tau$ decay mode. [Preview Abstract] |
Saturday, April 14, 2007 2:30PM - 2:42PM |
C14.00006: Search for Randall-Sundrum Gravitons in Dilepton and Diphoton Final States with 1 fb$^{-1}$ of data Amitabha Das, Ulrich Heintz We will report the result from a search for Randall-Sundrum gravitons decaying to dielectron and diphoton final states in 1~fb$^{-1}$ of data collected by the D0 detector at Fermilab. The standard model has given us an excellent description of particle physics at energies that have been probed experimentally. Yet, it leaves many questions unanswered and we know that at higher energy it must fail. There are many theoretical ideas that address the shortcomings of the standard model. The Randall- Sundrum model is one of them, which is based on the idea of gravity propagating in extra dimensions. In this analysis, we do not find any excess over standard model expectations and set a lower limit on the mass of such gravitons. [Preview Abstract] |
Saturday, April 14, 2007 2:42PM - 2:54PM |
C14.00007: Search for $W'$ Production at CDF Clark Cully We present results from a search for $W'$ production in 1 $fb^{-1}$ of $p\overline{p}$ data from the CDF-II detector at the Tevatron. Many standard model extensions involve additional gauge bosons. A new heavy charged boson with standard model-like couplings ($W'$) would decay prominently to $t\overline{b}$. We search for the semi-leptonic final state of this decay in events with a high transverse momentum lepton, large missing transverse energy, and two or three high transverse momentum jets, where one of the jets contains a secondary vertex consistent with the fragmentation of a $b$ parton. Kinematic discriminants are used to observe or exclude a $W'$-like resonance in the mass range from 400 to 950 $GeV/c^{2}$. [Preview Abstract] |
Saturday, April 14, 2007 2:54PM - 3:06PM |
C14.00008: ABSTRACT WITHDRAWN |
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