My Works

Here is a simple list of my own contributions and talks
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  1. Measuremen­t of a Complete Set of Nuclides, cross sections, and Kinetic Energies in spallation residues in 1 A GeV 238U with Protons
  2. Precision measurement of the Negative Muon Anomalous Magnetic Moment to 0.7ppm by Bennett G.W. et. al.
  3. Density Functional Theory: Introduction
  4. Qweak Software Framework
  5. Qweak: A Measurement of the Proton’s Weak Charge
  6. Qweak Particle Tracking System (APS April meeting talk)
  7. Precision Measurement of the Weak Mixing Angle in Møller Scattering
  8. Qweak Data Acquisition System and Data Analysis Framework: A Poster

Title

Measuremen­t of a Complete Set of Nuclides, cross sections, and Kinetic Energies in spallation residues in 1 A GeV 238U with Protons

Abstract

Spallation-Evaporation Technique used in the production of heavy nuclei was introduced. The target of liquid H was irradiated by uranium 238 1AGeV beam and isotopes produced were identified and cross section calculations were performed.
discussed paper:  Measurement of a Complete Set of Nuclides, Cross Sections, and Kinetic Energies in Spallation of 238U 1A GeV with Protons,  P. Armbruster et al., Phys. Rev. Lett. 93, 212701 (2004).

When

24th September 2008

Where

Ohio University Physics Department, Nuclear Lunch weekly academic talks

Find it

Measuremen­t of a Complete Set of Nuclides, cross sections, and Kinetic Energies in spallation residues in 1 A GeV 238U with Protons


Title

Precision measurement of the Negative Muon Anomalous Magnetic Moment to 0.7ppm by Bennett G.W. et. al.

Abstract

Precision measurement of the Negative Muon Anomalous Magnetic Moment to 0.7ppm by Bennett G.W. et. al. has a deviation from Standard Model predicted value. Reference G. W. Bennett et al. [Muon (g-2) Collaboration], Phys. Rev. Lett. 92, 161802 (2004).

When

8th April 2009

Where

Ohio University Physics Department, Nuclear Lunch weekly academic talks

Find it

Muon g-2 Experiment

Additional References

  1. New g-2 Measurement Deviates Further From Standard Model, BNL press release.
  2. Essentials of the Muon g-2 by F. Jegerlehner, arXiv:hep-ph/0703125v3

Title

Density Functional Theory: Introduction

Abstract

Density Functional Theory is widely used as a tool to calculate ground state energy of electron systems. The fundamental theorem at the heart of the DFT is the Hohenberg-Kohn theorem. I discussed a classical example and a quantum mechanical system to show how to apply DFT to calculate ground state energies

When

4th March 2009, 12pm – 1pm

Where

Ohio University Physics Department, Nuclear Lunch weekly academic talks

Find it

Density Functional Theory: Introduction

Additional References

  1. P. Hohenberg and W. Kohn, Phys. Rev. 136 (1964).
  2. N. D. Mermin, PHYSICAL REVIEWS 137 (1965).
  3. N. Argaman, AMERICAN JOURNAL OF PHYSICS 68 (2000).
  4. W. Kohn and L. J. Sham, Phys. Rev. 140 (1965).
  5. K. Capelle, arXiv cond-mat (2006).

Title

Qweak Software Framework

Abstract

The Qweak Track Decoder (QTD) reads and decodes CODA events from the tracking detectors and generates a wire/element hit array. In its current state the QTD produces region 2 drift chamber wire hit array. This hit array is then passed into the next phase, the Qweak Track Reconstruction (QTR) for determining Q^2 distribution but it can be extended into many other Qweak detectors in different regions.

When

7th November 2009, 4pm – 5pm

Where

Thomas Jefferson National Accelerator Facility (TJNAF), Qweak Collaboration Meeting

Find it

The talk

Additional References


Title

QWeak : A Measurement of the Proton’s Weak Charge

Abstract

The QWeak experiment at Jefferson lab will measure the parity-violating elastic electron-proton scattering asymmetry at Q^2 = 0:026(GeV/c)^2 to obtain the weak charge of the Proton to an accuracy of 4%. The result will test the Standard model claim of running of sin^2(theta). As a thesis student I will contribute to the QWeak experiment mainly in the areas of data acquisition, data-analysis software development and extraction of the physics asymmetry from the accumulated
data.

When

3rd December 2009, 10am – 12pm

Where

Ohio University Physics and Astronomy, A Prospectus: Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy (Ph.D)

Find it

The talk

Additional References

My prospectus


Title

Qweak Particle Tracking System (APS April Meeting talk)

Abstract

QWeak experiment at Jefferson lab will measure parity-violating elastic electron-proton scattering asymmetry at Q^2 ~ 0.03(GeV/c)2 to obtain the weak charge of the Proton, Q_W to an accuracy of 4%. An accurate value of Q^2 is required to measure the Q_ W. A low beam-current counting-mode particle tracking system will measure the average Q^2 to an accuracy of 0.5%. A dedicated tracking software system will decode tracking detector signals to generate a set of electron hit data that will be used to derive individual electron tracks. This will enable us to calculate the scattering angle and interaction vertex, map the main detector response function, and correct the main detector signal for background contributions. A summary of the QWeak tracking detectors and software system will be presented.

When

14th February, 9am – 10am

Where

APS April Meeting, Washington DC.

Find it

APS April Meeting talk

Additional References


Title

Precision Measurement of the Weak Mixing Angle in Møller Scattering

Abstract

A discussion based on the SLAC E-158 Møller scattering (e-e) experiment. This experiment verified the running of weak mixing angle (sin^2theta_W) and provided 0.5% measurement on that.
The main reference is “Precision Measurement of the Weak Mixing Angle in Møller Scattering” published in PRL 95, 081601 (2005).

When

8th April 2010, 1pm – 2pm

Where

Thomas Jefferson National Accelerator Facility (TJNAF), Qweak Journal Club

Find it

The talk

Additional References


Title

Qweak Data Acquisition System and Data Analysis Framework

Abstract

The Qweak experiment at Jefferson lab will measure the parity-violating elastic electron-proton scattering asymmetry at Q^2 ~ 0.03(GeV/c)^2 to obtain the weak charge of the proton to an accuracy of 4%. This level of accuracy requires systematic and statistical errors to be controlled at the parts-per-billion level. The Qweak Data Acquisition (DAQ) must collect data at an event rate of 960Hz without missing events, and provides this data to a real-time analyzer that adjust electron source parameters to minimize false asymmetries generated by the beam intensity. The Qweak data analysis framework provides both the real-time evaluation and complete off-line data analysis. An overview of the DAQ and analysis framework, and my contributions to the experiment will be presented.

When

8th June 2011, 1pm – 2pm

Where

Thomas Jefferson National Accelerator Facility (TJNAF), Annual user meeting 2011

Find it

The poster

Additional References

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