You are here
ΛC Semileptonic Decays in a Quark Model
| Title: | ΛC Semileptonic Decays in a Quark Model. |
 120 views 12 downloads |
|---|---|---|
| Name(s): |
Hussain, Md Mozammel, author Roberts, Winston, professor directing dissertation Goldsby, Kenneth A,, university representative Volya, Alexander, committee member Crede, Volker, committee member Owens, Joseph F., III, committee member Florida State University, degree granting institution College of Arts and Sciences, degree granting college Department of Physics , degree granting department |
|
| Type of Resource: | text | |
| Genre: |
Text Doctoral Thesis |
|
| Issuance: | monographic | |
| Date Issued: | 2017 | |
| Publisher: |
Florida State University Florida State University |
|
| Place of Publication: | Tallahassee, Florida | |
| Physical Form: |
computer online resource |
|
| Extent: | 1 online resource (101 pages) | |
| Language(s): | English | |
| Abstract/Description: | Hadronic form factors for semileptonic decay of the Λ[subscript c] are calculated in a nonrelativistic quark model. The full quark model wave functions are employed to numerically calculate the form factors to all orders in (1/m[subscript c], 1/m[subscript s]). The form factors satisfy relationships expected from the heavy quark effective theory (HQET) form factors. No other semileptonic decays of Λ[subscript c] has been reported other than the decay to the ground state Λ that implies f = B(Λ[subscript c]⁺ → Λl⁺ν[subscript l])/B(Λ[subscript c]⁺ → X[subscript s]l⁺ν[subscript l]) = 1. In this work, the differential decay rates and branching fractions are calculated for transitions to the ground state and a number of excited states of Λ. The branching fraction of the semileptonic decay width to the total width of Λ[subscript c] has been calculated and compared with other theoretical estimates and experimental results. The branching fractions for Λ[subscript c] → Λ*l⁺ν[subscript l] → Σπl⁺ν[subscript l] and Λ[subscript c] → Λ*l⁺ν[subscript l] → NǨl⁺ν[subscript l] are also calculated. Apart from decays to the ground state Λ(1115), it is found that decays through the Λ(1405) provide a significant portion of the branching fraction Λ[subscript c] → X[subscript s]lν[subscript l]. There are various conjectures on the structure of the Λ(1405) while we treated it as a three quark state. A new estimate for f = B(Λ[subscript c]⁺ → Λl⁺ν[subscript l] is obtained. | |
| Identifier: | FSU_2017SP_Hussain_fsu_0071E_13920 (IID) | |
| Submitted Note: | A Dissertation submitted to the Department of Physics in partial fulfillment of the requirements for the degree of Doctor of Philosophy. | |
| Degree Awarded: | Spring Semester 2017. | |
| Date of Defense: | March 20, 2017. | |
| Bibliography Note: | Includes bibliographical references. | |
| Advisory Committee: | Winston Roberts, Professor Directing Dissertation; Kenneth Goldsby, University Representative; Alexander Volya, Committee Member; Volker Crede, Committee Member; Joseph Owens, Committee Member. | |
| Subject(s): |
Particles (Nuclear physics) Physics |
|
| Persistent Link to This Record: | http://purl.flvc.org/fsu/fd/FSU_2017SP_Hussain_fsu_0071E_13920 | |
| Use and Reproduction: | This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). The copyright in theses and dissertations completed at Florida State University is held by the students who author them. | |
| Host Institution: | FSU |
Hussain, M. M. (2017). ΛC Semileptonic Decays in a Quark Model. Retrieved from http://purl.flvc.org/fsu/fd/FSU_2017SP_Hussain_fsu_0071E_13920
