ABSTRACT We investigate the weak decays of $B_c$ mesons in Cabibbo-Kobayashi-Maskawa favored and ... more ABSTRACT We investigate the weak decays of $B_c$ mesons in Cabibbo-Kobayashi-Maskawa favored and suppressed modes. We present a detailed analysis of the $B_c$ meson decaying to vector meson (V) and axial-vector meson (A) in the final state. We also give the form factors involving $B_c \to A$ transition in the Isgur-Scora-Grinstein-Wise II framework and consequently, predict the branching ratios of $B_c \to V A$ and $AA$ decays.
ABSTRACT We obtain the first estimates of branching ratios for the weak decays of Bc meson decayi... more ABSTRACT We obtain the first estimates of branching ratios for the weak decays of Bc meson decaying to 2 orbitally excited mesons namely, axial-vector meson (A) and tensor meson (T) in the final state. We calculate Bc→T transition form factors using the Isgur-Scora-Grinstein-Wise II framework and, consequently, predict branching ratios of Bc→AT decays in Cabibbo-Kobayashi-Maskawa favored and suppressed modes.
The introduction of oral phosphodiesterase-5 inhibitors (PDE5Is) in the late 1990s and early 2000... more The introduction of oral phosphodiesterase-5 inhibitors (PDE5Is) in the late 1990s and early 2000s revolutionized the field of sexual medicine and PDE5Is are currently first-line monotherapy for erectile dysfunction (ED). However, a significant proportion of patients with complex ED will be therapeutic non-responders to PDE5I monotherapy. Combination therapy has recently been adopted for more refractory cases of ED, but a critical evaluation of current combination therapies is lacking. A thorough PubMed and Cochrane Library search was conducted focusing on the effectiveness of combination therapies for ED in therapeutic non-responders to PDE5I therapy. Journal articles spanning the time period between January 1990 and December 2010 were reviewed. Criteria included all pertinent review articles, randomized controlled trials, cohort studies and retrospective analyses. References from retrieved articles were also manually scanned for additional relevant publications. Published combination therapies include PDE5I plus vacuum erectile device (VED), intraurethral medication, intracavernosal injection (ICI), androgen supplement, α-blocker or miscellaneous combinations. Based on this review, some of these combination treatments appeared to be quite effective in preliminary testing. Caution must be advised, however, as the majority of combination therapy articles in the last decade have numerous limitations including study biases and small subject size. Regardless of limitations, present combination therapy research provides a solid foundation for future studies in complex ED management.
Rohit Dhir*, Avinash Sharma Department of Physics, GGS Indraprastha University, Dwarka, Delhi 110... more Rohit Dhir*, Avinash Sharma Department of Physics, GGS Indraprastha University, Dwarka, Delhi 110 075, India and RC Verma Department of Physics, Patiala University, Patiala – 175 001, India. e-mail: dhir.rohit@gmail.com , acsharma1956@gmail.com and rcverma@gmail.com
Journal of Physics G-nuclear and Particle Physics, 2005
... mass and screened charge of quarks Suresh Kumar, Rohit Dhir and RC Verma Department of Physic... more ... mass and screened charge of quarks Suresh Kumar, Rohit Dhir and RC Verma Department of Physics, Punjabi University, Patiala-147 002, India Received 22 July 2004 Published 7 January 2005 Online at stacks.iop.org/JPhysG/31/141 ...
In this paper, we investigate phenomenologically two-body weak decays of the bottom mesons emitti... more In this paper, we investigate phenomenologically two-body weak decays of the bottom mesons emitting pseudoscalar/vector meson and a tensor meson. Form factors are obtained using the improved ISGW II model. Consequently, branching ratios for the CKM-favored and CKM-suppressed decays are calculated.
We give the detailed analysis of effects of flavor dependence of average transverse quark momentu... more We give the detailed analysis of effects of flavor dependence of average transverse quark momentum inside a meson on J/psi --> P and \Upsilon --> Bc transition form factors and two-body weak hadronic decays of J/psi and \Upsilon employing the factorization scheme. We predict the branching ratios of semileptonic and nonleptonic weak decays of J/psi and \Upsilon mesons in Cabibbo-angle-enhanced and Cabibbo-angle-suppressed modes.
Magnetic moments of heavy charmed baryons with J P = 3/2+ are predicted employing the concept of ... more Magnetic moments of heavy charmed baryons with J P = 3/2+ are predicted employing the concept of effective quark mass and screened charge of quark. We also extend our scheme to predict the 3/2+ \( \rightarrow\) 1/2+ transition magnetic moments. A comparison of our results with the predictions obtained in recent models is presented.
In this paper, we investigate phenomenologically two-body weak decays of the bottom mesons emitti... more In this paper, we investigate phenomenologically two-body weak decays of the bottom mesons emitting pseudoscalar/vector meson and a tensor meson. Form factors are obtained using the improved ISGW II model. Consequently, branching ratios for the CKM-favored and CKM-suppressed decays are calculated.
We present a detailed analysis of exclusive semileptonic decays of Bc meson involving pseudoscala... more We present a detailed analysis of exclusive semileptonic decays of Bc meson involving pseudoscalar and vector mesons in the BSW framework, by investigating the effects of the flavor dependence on the average transverse quark momentum inside a meson. Branching ratios of exclusive semileptonic decays of Bc meson are predicted.
We study Cabibbo-Kobayashi-Maskawa (CKM) favored weak decays of Bc mesons in the Isgur-Scora-Grin... more We study Cabibbo-Kobayashi-Maskawa (CKM) favored weak decays of Bc mesons in the Isgur-Scora-Grinstein-Wise (ISGW) quark model. We present a detailed analysis of the Bc meson decaying to a pseudoscalar meson (P) and an axial-vector meson (A). We also give the form factors involving transition in the ISGW II framework and consequently, predict the branching ratios of decays.
ABSTRACT We investigate the weak decays of $B_c$ mesons in Cabibbo-Kobayashi-Maskawa favored and ... more ABSTRACT We investigate the weak decays of $B_c$ mesons in Cabibbo-Kobayashi-Maskawa favored and suppressed modes. We present a detailed analysis of the $B_c$ meson decaying to vector meson (V) and axial-vector meson (A) in the final state. We also give the form factors involving $B_c \to A$ transition in the Isgur-Scora-Grinstein-Wise II framework and consequently, predict the branching ratios of $B_c \to V A$ and $AA$ decays.
ABSTRACT We obtain the first estimates of branching ratios for the weak decays of Bc meson decayi... more ABSTRACT We obtain the first estimates of branching ratios for the weak decays of Bc meson decaying to 2 orbitally excited mesons namely, axial-vector meson (A) and tensor meson (T) in the final state. We calculate Bc→T transition form factors using the Isgur-Scora-Grinstein-Wise II framework and, consequently, predict branching ratios of Bc→AT decays in Cabibbo-Kobayashi-Maskawa favored and suppressed modes.
The introduction of oral phosphodiesterase-5 inhibitors (PDE5Is) in the late 1990s and early 2000... more The introduction of oral phosphodiesterase-5 inhibitors (PDE5Is) in the late 1990s and early 2000s revolutionized the field of sexual medicine and PDE5Is are currently first-line monotherapy for erectile dysfunction (ED). However, a significant proportion of patients with complex ED will be therapeutic non-responders to PDE5I monotherapy. Combination therapy has recently been adopted for more refractory cases of ED, but a critical evaluation of current combination therapies is lacking. A thorough PubMed and Cochrane Library search was conducted focusing on the effectiveness of combination therapies for ED in therapeutic non-responders to PDE5I therapy. Journal articles spanning the time period between January 1990 and December 2010 were reviewed. Criteria included all pertinent review articles, randomized controlled trials, cohort studies and retrospective analyses. References from retrieved articles were also manually scanned for additional relevant publications. Published combination therapies include PDE5I plus vacuum erectile device (VED), intraurethral medication, intracavernosal injection (ICI), androgen supplement, α-blocker or miscellaneous combinations. Based on this review, some of these combination treatments appeared to be quite effective in preliminary testing. Caution must be advised, however, as the majority of combination therapy articles in the last decade have numerous limitations including study biases and small subject size. Regardless of limitations, present combination therapy research provides a solid foundation for future studies in complex ED management.
Rohit Dhir*, Avinash Sharma Department of Physics, GGS Indraprastha University, Dwarka, Delhi 110... more Rohit Dhir*, Avinash Sharma Department of Physics, GGS Indraprastha University, Dwarka, Delhi 110 075, India and RC Verma Department of Physics, Patiala University, Patiala – 175 001, India. e-mail: dhir.rohit@gmail.com , acsharma1956@gmail.com and rcverma@gmail.com
Journal of Physics G-nuclear and Particle Physics, 2005
... mass and screened charge of quarks Suresh Kumar, Rohit Dhir and RC Verma Department of Physic... more ... mass and screened charge of quarks Suresh Kumar, Rohit Dhir and RC Verma Department of Physics, Punjabi University, Patiala-147 002, India Received 22 July 2004 Published 7 January 2005 Online at stacks.iop.org/JPhysG/31/141 ...
In this paper, we investigate phenomenologically two-body weak decays of the bottom mesons emitti... more In this paper, we investigate phenomenologically two-body weak decays of the bottom mesons emitting pseudoscalar/vector meson and a tensor meson. Form factors are obtained using the improved ISGW II model. Consequently, branching ratios for the CKM-favored and CKM-suppressed decays are calculated.
We give the detailed analysis of effects of flavor dependence of average transverse quark momentu... more We give the detailed analysis of effects of flavor dependence of average transverse quark momentum inside a meson on J/psi --> P and \Upsilon --> Bc transition form factors and two-body weak hadronic decays of J/psi and \Upsilon employing the factorization scheme. We predict the branching ratios of semileptonic and nonleptonic weak decays of J/psi and \Upsilon mesons in Cabibbo-angle-enhanced and Cabibbo-angle-suppressed modes.
Magnetic moments of heavy charmed baryons with J P = 3/2+ are predicted employing the concept of ... more Magnetic moments of heavy charmed baryons with J P = 3/2+ are predicted employing the concept of effective quark mass and screened charge of quark. We also extend our scheme to predict the 3/2+ \( \rightarrow\) 1/2+ transition magnetic moments. A comparison of our results with the predictions obtained in recent models is presented.
In this paper, we investigate phenomenologically two-body weak decays of the bottom mesons emitti... more In this paper, we investigate phenomenologically two-body weak decays of the bottom mesons emitting pseudoscalar/vector meson and a tensor meson. Form factors are obtained using the improved ISGW II model. Consequently, branching ratios for the CKM-favored and CKM-suppressed decays are calculated.
We present a detailed analysis of exclusive semileptonic decays of Bc meson involving pseudoscala... more We present a detailed analysis of exclusive semileptonic decays of Bc meson involving pseudoscalar and vector mesons in the BSW framework, by investigating the effects of the flavor dependence on the average transverse quark momentum inside a meson. Branching ratios of exclusive semileptonic decays of Bc meson are predicted.
We study Cabibbo-Kobayashi-Maskawa (CKM) favored weak decays of Bc mesons in the Isgur-Scora-Grin... more We study Cabibbo-Kobayashi-Maskawa (CKM) favored weak decays of Bc mesons in the Isgur-Scora-Grinstein-Wise (ISGW) quark model. We present a detailed analysis of the Bc meson decaying to a pseudoscalar meson (P) and an axial-vector meson (A). We also give the form factors involving transition in the ISGW II framework and consequently, predict the branching ratios of decays.
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