First Measurement of the Rate for the Inclusive Radiative Penguin Decay<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="italic">b</mml:mi><mml:mo>→</mml:mo><mml:mi mathvariant="italic">s</mml:mi><mml:mi mathvariant="italic">γ</mml:mi></mml:math>

Alam, M. S.; Kim, I. J.; Ling, Z.; Mahmood, A. H.; O’Neill, J. J.; Severini, H.; Sun, C. R.; Wappler, F. R.; Crawford, G.; Daubenmier, C. M.; Fulton, R.; Fujino, D.; Gan, K. K.; Honscheid, K.; Kagan, H.; Kass, R.; Lee, J.; Sung, M.; White, C.; Wolf, A.; Zoeller, M. M.; Butler, F.; Fu, X.; Nemati, B.; Ross, W. R.; Skubic, P.; Wood, M.; Bishai, M.; Fast, J. E.; Gerndt, E.; Hinson, J. W.; McIlwain, R. L.; Miao, T.; Miller, D. H.; Modesitt, M.; Payne, D. J.; Shibata, E. I.; Shipsey, I. P. J.; Wang, P. N.; Battle, M.; Ernst, J.; Gibbons, L. K.; Kwon, Y. J.; Roberts, S.; Thorndike, E. H.; Wang, C. H.; Coan, T. E.; Dominick, J.; Fadeyev, V.; Korolkov, I.; Lambrecht, M.; Sanghera, S.; Shelkov, V.; Skwarnicki, T.; Stroynowski, R.; Volobouev, I.; Wei, G.; Artuso, M.; Gao, M.; Goldberg, M.; He, D.; Horwitz, N.; Moneti, G. C.; Mountain, R.; Muheim, F.; Mukhin, Y.; Playfer, S.; Rozen, Y.; Stone, S.; Xing, X.; Zhu, G.; Bartelt, J.; Csorna, S. E.; Egyed, Z.; Jain, V.; Gibaut, D.; Kinoshita, K.; Pomianowski, P.; Barish, B. C.; Chadha, M.; Chan, S.; Cowen, D. F.; Eigen, G.; Miller, J. S.; O’Grady, C. P.; Urheim, J.; Weinstein, A. J.; Athanas, M.; Brower, W. S.; Masek, G.; Paar, H. P.; Gronberg, J.; Korte, C. M.; Kutschke, R.; Menary, S.; Morrison, R. J.; Nakanishi, S.; Nelson, H. N.; Nelson, T. K.; Qiao, C. F.; Richman, J. D.; Rýd, A.; Sperka, D.; Tajima, H.; Witherell, M. S.; Balest, R.; Cho, K.; Ford, W. T.; Johnson, D. R.; Lingel, K.; Lohner, M.; Rankin, P.; Smith, J. G.; Alexander, J.; Bebek, C.; Berkelman, K.; Bloom, K.; Browder, T. E.; Cassel, D. G.; Cho, H. A.; Coffman, D. M.; Crowcroft, D. S.; Drell, P. S.; Dumas, D. J.P.; Ehrlich, R.; Gaidarev, P.; Garcia-Sciveres, M.; Geiser, B.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Henderson, S.; Jones, C. D.; Jones, S. L.; Kandaswamy, J.; Katayama, N.; Kim, P. C.; Kreinick, D. L.; Ludwig, G. S.; Masui, J.; Mevissen, J.; Mistry, N. B.; Ng, C. R.; Nordberg, E.; Patterson, J. R.; Peterson, D.; Riley, D.; Salman, S.; Sapper, M.; Würthwein, F.; Avery, P.; Freyberger, A.; Rodriguez, J. L.; Yang, S. B.; Yelton, J.; Cinabro, D.; Liu, T.; Saulnier, M.; Wilson, Richard; Yamamoto, H.; Bergfeld, T.; Eisenstein, B. I.; Gollin, G. D.; Ong, B.; Palmer, M.; Selen, M.; Thaler, J. J.; Edwards, K. W.; Ogg, M.; Bellerive, A.; Britton, D.; Hyatt, E. R.F.; MacFarlane, D. B.; Patel, P. M.; Spaan, B.; Sadoff, A. J.; Ammar, R.; Baringer, P.; Bean, A.; Besson, D.; Coppage, D.; Copty, N.; Davis, R.; Hancock, N.; Kelly, M. P.; Kotov, S.; Kravchenko, I.; Kwak, N.; Lam, H.; Kubota, Y.; Lattery, M.; Momayezi, M.; Nelson, J. K.; Patton, S.; Poling, R.; Savinov, V.; Schrenk, S.; Wang, R.

doi:10.1103/physrevlett.74.2885

Cited by 603 publications

(412 citation statements)

References 21 publications

Supporting

Mentioning

384

Contrasting

Order By: Relevance

“…SUSY can accommodate the observed flavor mixing [8,9,10] and thus, the LFV processes (15), (16) and (17) would arise in these models. A study conducted at the LHC showed that an upper bound of 0.6 × 10 −6 on the τ ± → µ ± γ branching ratio can be achieved with an integrated luminosity of 30 fb −1 while theoretical estimates are at the level of 10 −9 or less [10,32].…”

Section: Collider Experimentsmentioning

confidence: 99%

“…One of the most stringent test of the 2HDM type I and type II comes from the measurement of the b → sγ decay rate which receives substantial enhancement (over the SM prediction) in the 2HDM in a large region of the (m H ± , tan β) parameter space [13,14,15]. The measured b → sγ decay rate from CLEO [16] and ALEPH [17] leads to a model dependent indirect lower bound of the charged Higgs mass as function of tan β [18]. In the 2HDM-III, no discrete symmetries are present and in general FCNC exist in this model [19,20].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Search for the lepton flavor violating decayA0/H0→τ±
Assamagan
¹
,
Deandrea
²
,
Delsart
³

2003
Phys. Rev. D
72
3
78
0
View full text Add to dashboard Cite

In the two Higgs doublet model type III and in several other extensions of the Standard Model, there are no discrete symmetries that suppress flavor changing couplings at tree level. The experimental observation of the ν µ -ν τ flavor oscillation may suggest the nonconservation of lepton number. This would lead to the decay of the type A 0 /H 0 → τ ± µ ∓ . We determine the present low energy limit on lepton flavor violating (LFV) couplings from the muon g − 2 measurement and discuss the prospects for detecting lepton flavor violating decays at the TeVatron and at the Large Hadron Collider. The achievable bounds on the LFV coupling parameter λ τ µ are presented.

show abstract

Section: Collider Experimentsmentioning

confidence: 99%

mentioning

confidence: 99%

Search for the lepton flavor violating decayA0/H0→τ±
Assamagan
¹
,
Deandrea
²
,
Delsart
³

2003
Phys. Rev. D
72
3
78
0
View full text Add to dashboard Cite

show abstract

“…Fits to the semileptonic decay spectrum at CLEO [16] suggest a value of β = 0.287GeV ; m b = 4.87GeV . In our results we consider β = .15 − .45GeV , though in most cases the branching ratios are not strongly dependent on β.…”

Section: Introduction 2 Role Of the Anomalymentioning

confidence: 99%

“…When the cut is imposed however, the fraction passing the cut is strongly dependent on m b . Following CLEO (b → sγ) [16] we vary m b over the range of 4.7 to 4.9GeV . Using β = 0.3 GeV we find that for m b = 4.7 GeV the branching fraction which passes the cut is 6.7 × 10 −4 while if m b = 4.9GeV then the corresponding branching fraction is 9.8 × 10 −4 .…”

Section: Introduction 2 Role Of the Anomalymentioning

confidence: 99%

B → η′ + X and the QCD anomaly

1997

View full text Add to dashboard Cite

Mechanisms for the observed large Br(B → η ′ + X s ) are examined. We propose that the dominant fraction of the B → η ′ + X s rate is due mainly to b → sg * , where g * is an off-shell gluon, followed by g * → gη ′ via the anomalous coupling of the η ′ to two gluons. The calculated rate for B → η ′ + X s is in rough accord with experiment using a fairly constant glueglue-η ′ form factor. This behavior of the form factor may be indicative of glueball dominance of the channel. Searches via the modes η ′ h + h − (h = π or K) may be worthwhile. Charmonia contributions [i.e B → η c , ψ(→ η ′ + X) + X s ] can only account for at most 20% of the central value of the signal. Implications for B → η ′ +X d and for the corresponding η modes are also given. IntroductionRecently CLEO has reported[1] a very large branching ratio for the inclusive production of η ′ (subject to the indicated cut):In this Letter we report on possible mechanisms for this large signal. Two interesting origins are: (1) b → s + g * (where g * is an off-shell gluon) followed by g * → η ′ + g due to the anomalous η ′ -g-g vertex. (2) b → charmonia (e.g. ψ, η c ) + X s followed by ψ(η c ) → η ′ + X. We discuss these below in turn.

show abstract

“…Recall first the CLEO observation [104] Br(B → X s γ) = (2.32 ± .57 ± .35) × 10 −4 and the corresponding 95% CL bounds of 1 × 10 −4 < Br(B → X s γ) < 4.2 × 10 −4 . These were updated by CLEO to read Br(B → X s γ) < (3.11 ± 0.8 ± 0.72) × 10 −4 where, at 95% CL, 2.0 × 10 −4 < Br(B → X s γ) < 4.5 × 10 −4 [105,106].…”

Section: Hdm With Cp Nonconservation and No Fcncmentioning

confidence: 99%

CP violation in top physics

et al. 2001

View full text Add to dashboard Cite

CP violation in top physics is reviewed. The Standard Model has negligible effects, consequently CP violation searches involving the top quark may constitute the best way to look for physics beyond the Standard Model. Non-standard sources of CP violation due to an extended Higgs sector with and without natural flavor conservation and supersymmetric theories are discussed. Experimental feasibility of detecting CP violation effects in top quark production and decays in high energy e + e − , γγ, µ + µ − , pp and pp colliders are surveyed. Searches for the electric, electro-weak and the chromo-electric dipole moments of the top quark in e + e − → tt and in pp → ttX are descibed. In addition, other mechanisms that appear promising for experiments, e.g., tree-level CP violation in e + e − → tth, ttZ, ttν eνe and in the top decay t → bτ ν τ and CP violation driven by s-channel Higgs exchanges in pp, γγ, µ + µ − → tt etc., are also discussed. * A 2-up version of this postscript file may be obtained at the url

show abstract

First Measurement of the Rate for the Inclusive Radiative Penguin Decayb→sγ

Cited by 603 publications

References 21 publications

Search for the lepton flavor violating decayA0/H0→τ±
Assamagan
¹
,
Deandrea
²
,
Delsart
³

2003
Phys. Rev. D
72
3
78
0
View full text Add to dashboard Cite

Search for the lepton flavor violating decayA0/H0→τ±
Assamagan
¹
,
Deandrea
²
,
Delsart
³

2003
Phys. Rev. D
72
3
78
0
View full text Add to dashboard Cite

B → η′ + X and the QCD anomaly

CP violation in top physics

Contact Info

Product

Resources

About

First Measurement of the Rate for the Inclusive Radiative Penguin Decayb→sγ

Cited by 603 publications

References 21 publications

Search for the lepton flavor violating decayA0/H0→τ±Assamagan1, Deandrea2, Delsart3 2003Phys. Rev. D723780View full textAdd to dashboardCite

Search for the lepton flavor violating decayA0/H0→τ±Assamagan1, Deandrea2, Delsart3 2003Phys. Rev. D723780View full textAdd to dashboardCite

B → η′ + X and the QCD anomaly

CP violation in top physics

Contact Info

Product

Resources

About

Search for the lepton flavor violating decayA0/H0→τ±
Assamagan
¹
,
Deandrea
²
,
Delsart
³

2003
Phys. Rev. D
72
3
78
0
View full text Add to dashboard Cite

Search for the lepton flavor violating decayA0/H0→τ±
Assamagan
¹
,
Deandrea
²
,
Delsart
³

2003
Phys. Rev. D
72
3
78
0
View full text Add to dashboard Cite