Current Search: Hussain, Md Mozammel (x)
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 Title
 Delta(c) Semileptonic Decays In A Quark Model.
 Creator

Hussain, Md Mozammel, Roberts, Winston
 Abstract/Description

Hadronic form factors for semileptonic decay of the Lambda(c) are calculated in a nonrelativistic quark model. The full quark model wave functions are employed to numerically calculate the form factors to all relevant orders in ( 1/m(c), 1/m(s)). The form factors obtained satisfy relationships expected from the heavy quark effective theory ( HQET). The differential decay rates and branching fractions are calculated for transitions to the ground state and a number of excited states of Lambda...
Show moreHadronic form factors for semileptonic decay of the Lambda(c) are calculated in a nonrelativistic quark model. The full quark model wave functions are employed to numerically calculate the form factors to all relevant orders in ( 1/m(c), 1/m(s)). The form factors obtained satisfy relationships expected from the heavy quark effective theory ( HQET). The differential decay rates and branching fractions are calculated for transitions to the ground state and a number of excited states of Lambda The branching fraction of the semileptonic decay width to the total width of Lambda(c) has been calculated and compared with other theoretical estimates and experimental results. The branching fractions for Lambda(c) >Lambda*iota(+)nu(iota)>Sigma pi iota(+)nu(iota) and Lambda(c) > Lambda*iota(+)nu(iota) > NK iota(+)nu(iota) are also calculated. Apart from decays to the ground state Lambda(1115), it is found that decays through the Lambda(1405) provide a significant portion of the branching fraction Lambda(c) > Xs iota nu(iota). A new estimate for f = B(Lambda(+)(c) > Lambda iota(+) nu(iota))/B(Lambda(+)(c) > Chi(+)(s) nu(iota)) is obtained.
Show less  Date Issued
 20170313
 Identifier
 FSU_libsubv1_wos_000396030900002, 10.1103/PhysRevD.95.053005
 Format
 Citation
 Title
 ΛC Semileptonic Decays in a Quark Model.
 Creator

Hussain, Md Mozammel, Roberts, Winston, Goldsby, Kenneth A,, Volya, Alexander, Crede, Volker, Owens, Joseph F., Florida State University, College of Arts and Sciences,...
Show moreHussain, Md Mozammel, Roberts, Winston, Goldsby, Kenneth A,, Volya, Alexander, Crede, Volker, Owens, Joseph F., Florida State University, College of Arts and Sciences, Department of Physics
Show less  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...
Show moreHadronic 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.
Show less  Date Issued
 2017
 Identifier
 FSU_2017SP_Hussain_fsu_0071E_13920
 Format
 Thesis