Observation of a Significant Excess of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math>Events in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi></mml:math>Meson Decays

Aubert, B.; Barate, R.; Boutigny, D.; Gaillard, J.M.; Hicheur, A.; Karyotakis, Y.; Lees, J. P.; Robbe, P.; Tisserand, V.; Zghiche, A.; Palano, A.; Pompili, A.; Chen, J. C.; Qi, N. D.; Rong, G.; Wang, P.; Zhu, Y. S.; Eigen, G.; Ofte, I.; Stugu, B.; Abrams, G. S.; Borgland, A. W.; Breon, A. B.; Brown, D. N.; Button‐Shafer, J.; Cahn, R. N.; Charles, E.; Day, C. T.; Gill, M. S.; Gritsan, A. V.; Groysman, Y.; Jacobsen, R. G.; Kadel, R. W.; Kadyk, J. A.; Kerth, L. T.; Kolomensky, Yu. G.; Kral, J.F.; Kukartsev, G.; LeClerc, C.; Levi, M. E.; Lynch, G.; Mir, L. M.; Oddone, P.J.; Orimoto, T.; Pripstein, M.; Roe, N. A.; Romosan, A.; Ronan, M. T.; Shelkov, V.; Telnov, A. V.; Wenzel, W.A.; Ford, K. E.; Harrison, T. J.; Hawkes, C. M.; Knowles, D. J.; Morgan, S. E.; Penny, R. C.; Watson, A. T.; Watson, N. K.; Goetzen, K.; Held, T.; Koch, H.; Lewandowski, B.; Pelizaeus, M.; Peters, K.; Schmuecker, H.; Steinke, M.; Barlow, N. R.; Boyd, J. T.; Chevalier, N.; Cottingham, W. N.; Kelly, M. P.; Latham, T.; Mackay, C. K.; Wilson, F. F.; Abe, Kazuo; Çuhadar-Dönszelmann, T.; Hearty, C.; Mattison, T. S.; McKenna, J. A.; Thiessen, D.; Kyberd, P.; McKemey, A. K.; Blinov, V.E.; Bukin, A. D.; Golubev, V. B.; Ivanchenko, V. N.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu. I.; Solodov, E. P.; Yushkov, A. N.; Best, D.; Bruinsma, M.; Chao, M.; Kirkby, D.; Lankford, A. J.; Mandelkern, M.; Mommsen, R. K.; Roethel, W.; Stoker, D. P.; Buchanan, C.; Hartfiel, B. L.; Shen, B. C.; Re, D. Del; Hadavand, H. K.; Hill, E. J.; MacFarlane, D. B.; Paar, H. P.; Rahatlou, S.; Sharma, V.; Berryhill, J. W.; Campagnari, C.; Dahmes, B.; Кузнецова, Н.; Levy, S. L.; Long, O.; Lu, A.; Mazur, M. A.; Richman, J.; Verkerke, W.; Beck, T. W.; Beringer, J.; Eisner, A. M.; Heusch, C.A.; Lockman, W. S.; Schalk, T.; Schmitz, R. E.; Schumm, B. A.; Seiden, A.; Turri, M.; Walkowiak, W.; Williams, D. C.; Wilson, M. G.; Albert, J.; Chen, E.; Dubois-Felsmann, G. P.; Dvoretskii, A.; Hitlin, D. G.; Narsky, I.; Porter, F. C.; Rýd, A.; Samuel, A.; Yang, S.; Jayatilleke, S.; Mancinelli, G.; Meadows, B.; Sokoloff, M. D.; Abe, T.; Blanc, F.; Bloom, P. C.; Chen, S.; Clark, P. J.; Ford, W. T.; Nauenberg, U.; Olivas, A.; Rankin, P.; Roy, J.; Smith, J. G.; Hoek, W. C. van; Zhang, L.; Harton, J. L.; Hu, T.; Soffer, A.; Toki, W. H.; Wilson, R. J.; Zhang, J.; Altenburg, D. D.; Brandt, T.; Brose, J.; Colberg, T.; Dickopp, M.; Dubitzky, R. S.; Hauke, A.; Lacker, H.; Maly, E.; Müller-Pfefferkorn, R.; Nogowski, R.; Otto, S.; Schubert, J.; Schubert, K. R.; Schwierz, R.; Spaan, B.; Wilden, L.; Bernard, D.; Bonneaud, G. R.; Brochard, F.; Cohen-Tanugi, J.; Grenier, P.; Thiebaux, Ch; Vasileiadis, G.; Verderi, M.; Khan, A.; Lavin, D.; Muheim, F.; Playfer, S.; Swain, J. E.; Andreotti, M.; Azzolini, V.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cibinetto, G.; Luppi, E.; Negrini, M.; Piemontese, L.; Sarti, A.; Treadwell, E.; Anulli, F.; Baldini-Ferroli, R.; Biasini, M.; Calcaterra, A.; Sangro, R. de; Falciai, D.; Finocchiaro, G.; Patterí, P.; Peruzzi, I. M.; Piccolo, M.; Pioppí, M.; Zallo, A.; Buzzo, A.; Capra, R.; Contri, R.; Crosetti, G.; LoVetere, M.; Macrı́, M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Santroni, A.; Tosi, S.; Bailey, S.; Morii, M.; Won, E.; Bhimji, W.; Bowerman, D. A.; Dauncey, P. D.; Egede, U.; Eschrich, I.; Gaillard, J. R.; Morton, G. W.; Nash, J.; Sanders, P.; Taylor, G. P.; Grenier, G. J.; Lee, S. J.; Mallik, U.; Cochran, J.; Crawley, H. B.; Lämsä, J.; Meyer, W. T.; Prell, S.; Rosenberg, E. I.; Jiang, Y.; Davier, M.; Grosdidier, G.; Höcker, A.; Laplace, S.; Diberder, F. Le; Lepeltier, V.; Lutz, A. M.; Petersen, T. C.; Plaszczynski, S.; Schune, M. H.; Tantot, L.; Wormser, G.; Brigljević, V.; Cheng, C. H.; Lange, D.; Wright, D. M.; Bevan, A. J.; Coleman, J. P.; Fry, J. R.; Gabathuler, E.; Gamet, R.; Kay, M.; Parry, R. J.; Payne, D. J.; Sloane, R.J.; Touramanis, C.; Back, J. J.; Harrison, P. F.; Shorthouse, H. W.; Strother, P.; Vidal, P.B.; Brown, C. L.; Cowan, G.; Flack, R. L.; Flaecher, H. U.; George, S.; Green, M. G.; Kurup, A.; Marker, C. E.; McMahon, T. R.; Ricciardi, S.; Salvatore, F.; Vaitsas, G.; Winter, M. A.; Brown, D. N.; Davis, C. L.; Allison, J.; Barlow, R. J.; Forti, A.; Hart, P. A.; Hodgkinson, M. C.; Jackson, F.; Lafferty, G. D.; Lyon, A. J.; Weatherall, J.H.; Williams, Justin; Farbin, A.; Jawahery, A.; Kovalskyi, D.; Lae, C. K.; Lillard, V.; Roberts, D. A.; Blaylock, G.; Dallapiccola, C.; Flood, K. T.; Hertzbach, S. S.; Kofler, R.; Koptchev, V. B.; Moore, T. B.; Saremi, S.; Staengle, H.; Willocq, S.; Cowan, R.; Sciolla, G.; Taylor, F. Ë.; Yamamoto, R. K.; Mangeol, D.; Patel, P. M.; Lazzaro, A.; Palombo, F.; Bauer, J. M.; Cremaldi, L.; Eschenburg, V.; Godang, R.; Kroeger, R.; Reidy, J.; Sanders, D. A.; Summers, D. J.; Zhao, H. W.; Brunet, S.; Cote-Ahern, D.; Hast, C.; Taras, P.; Nicholson, H.; Cartaro, C.; Cavallo, N.; Nardo, G. De; Fabozzi, F.; Gatto, C.; Lista, L.; Paolucci, P.; Piccolo, D.; Sciacca, C.; Baak, M. A.; Raven, G.; LoSecco, J. M.; Gabriel, T. A.; Brau, B.; Gan, K. K.; Honscheid, K.; Hufnagel, D.; Kagan, H.; Kass, R.; Pulliam, T.; Wong, Q. K.; Brau, J. E.; Frey, R.; Potter, C. T.; Sinev, N. B.; Strom, D.; Torrence, E.; Colecchia, F.; Dorigo, A.; Galeazzi, F.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simonetto, F.; Stroili, R.; Tiozzo, G.; Voci, C.; Benayoun, M.; Briand, H.; Chauveau, J.; David, P.; Vaissière, Ch De La; Buono, L. Del; Hamon, O.; John, M.; Leruste, Ph; Ocariz, J.; Pivk, M.; Roos, L.; Stark, J.; T’Jampens, S.; Thérin, G.; Manfredi, P. F.; Re, V.; Behera, P. K.; Gladney, L.; Guo, Q. H.; Panetta, J.; Angelini, C.; Batignani, G.; Bettarini, S.; Bondioli, M.; Bucci, F.; Calderini, G.; Carpinelli, M.; Gamba, V. Del; Forti, F.; Giorgi, M. A.; Lusiani, A.; Marchiori, G.; Martínez-Vidal, F.; Morganti, M.; Neri, N.; Paoloni, E.; Rama, M.; Rizzo, G.; Sandrelli, F.; Walsh, J.; Haire, M.; Judd, D.; Paick, K.; Wagoner, D. E.; Danielson, N.; Elmer, P.; Lu, C.; Miftakov, V.; Olsen, J.; Smith, A. J. S.; Tanaka, H.A.; Varnes, E. W.; Bellini, F.; Cavoto, G.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Mazzoni, M. A.; Morganti, S.; Pierini, M.; Piredda, G.; Tehrani, F. Safai; Voena, C.; Christ, S.; Wagner, G.; Waldi, R.; Adye, T.; Groot, N. De; Franek, B.; Geddes, N. I.; Gopal, G. P.; Olaiya, E.; Xella, S.; Aleksan, R.; Emery, S.; Gaidot, A.; Ganzhur, S. F.; Giraud, P. F.; Monchenault, G. Hamel de; Kozanecki, W.; Langer, M.; Legendre, M.; London, G. W.; Mayer, B.; Schott, G.; Vasseur, G.; Yèche, Ch; Zito, M.; Purohit, M. V.; Weidemann, A. W.; Yumiceva, F. X.; Aston, D.; Bartoldus, R.; Berger, N.; Boyarski, A. M.; Buchmueller, O. L.; Convery, M. R.; Coupal, D.P.; Dong, D.; Dorfan, J.; Dujmić, D.; Dunwoodie, W.; Field, R. C.; Glanzman, T.; Gowdy, S. J.; Graugès-Pous, E.; Hadig, T.; Halyo, V.; Hrynʼova, T.; Innes, W. R.; Jessop, C.; Kelsey, M.; Kim, P.; Kocian, M.; Langenegger, U.; Leith, D.W.G.S.; Luitz, S.; Lüth, V.; Lynch, H. L.; Marsiske, H.; Messner, R.; Müller, D.; O’Grady, C. P.; Özcan, V. E.; Perazzo, A.; Perl, M.; Petrak, S.; Ratcliff, B. N.; Robertson, S. H.; Roodman, A.; Salnikov, A. A.; Schindler, R.H.; Schwiening, J.; Simi, G.; Snyder, A.; Soha, A.; Stelzer, J.; Su, D.; Sullivan, M. K.; Va’vra, J.; Wagner, S. R.; Weaver, M.; Weinstein, A. J.R.; Wisniewski, W. J.; Wright, D. H.; Young, C. C.; Burchat, P. R.; Edwards, A. J.; Meyer, T. I.; Petersen, B. A.; Roat, C.; Ahmed, S.; Alam, M. S.; Ernst, J.; Saleem, M.; Wappler, F. R.; Bugg, W.; Krishnamurthy, M.; Spanier, S. M.; Eckmann, R.; Kim, H.; Ritchie, J. L.; Schwitters, R. F.; Izen, J. M.; Kitayama, I.; Lou, X.; Ye, S.; Bianchi, F.; Bóna, M.; Gallo, F.; Gamba, D.; Borean, C.; Bosisio, L.; Ricca, G. Della; Dittongo, S.; Grancagnolo, S.; Lanceri, L.; Poropat, P.; Vitale, L.; Vuagnin, G.; Panvini, R. S.; Banerjee, S.; Brown, C. M.; Fortin, D.; Jackson, P. D.; Kowalewski, R.; Roney, J. M.; Band, H. R.; Dasu, S.; Datta, M.; Eichenbaum, A. M.; Johnson, J. R.; Kutter, P. E.; Li, H.; Liu, R.; Lodovico, F. Di; Mihályi, A.; Mohapatra, A.; Pan, Y.; Prepost, R.; Sekula, S. J.; Wimmersperg-Toeller, J. H. von; Wu, Jian; Wu, S. L.; Yu, Z.; Neal, H. A.

doi:10.1103/physrevlett.91.241801

Cited by 81 publications

(93 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The inclusive b → X s ℓ + ℓ − decay is observed in BaBaR [12] and Belle collaborations. These collaborations also measured exclusive modes B → Kℓ + ℓ − [13][14][15] and B → K * ℓ + ℓ − [16]. These experimental results show high agreement with theoretical predictions [17][18][19].…”

Section: Introductionsupporting

confidence: 66%

Lepton polarization andCP-violating effects in theB¯→K
Falahati
¹
,
Zebarjad
²
,
Naeimipour
³

2016
Phys. Rev. D
1
0
0
0
View full text Add to dashboard Cite

In this paper we analyze the dilepton mass square q 2 dependency of single lepton polarization asymmetries and CP violation for B → K * 0 (1430)ℓ + ℓ − , ℓ = µ, τ) in the 2HDM context. Also, we study the averages of these asymmetries in the domain 4m 2Our study manifests that the investigation of the abovementioned asymmetries for B → K * 0 (1430)ℓ + ℓ − processes could provide useful information for probing new Higgs bosons in the future B-physics experiments. Packs numbers: 12.60.-i, 13.30.-a, 14.20.Mr * falahati@shirazu.ac.ir * 0 (1430)(p K * 0 ) |sγ 5 b| B(p B ) = ∓

show abstract

Section: Introductionsupporting

confidence: 66%

Lepton polarization andCP-violating effects in theB¯→K
Falahati
¹
,
Zebarjad
²
,
Naeimipour
³

2016
Phys. Rev. D
1
0
0
0
View full text Add to dashboard Cite

show abstract

“…So, a complete set of polarization observables can be experimentally measurable. In 2003, a large transverse polarization fraction (about 50%) in B → K * φ decays was surprisingly observed in Belle collaboration [15,16]. Subsequently, this polarization anomaly was also confirmed in other penguin-dominated decays, such as B s → φφ and B s → K * 0 K * 0 .…”

Section: Introductionmentioning

confidence: 84%

Global analysis of charmless B decays into two vector mesons in soft-collinear effective theory

Wang

Zhou

et al. 2017

Phys. Rev. D

View full text Add to dashboard Cite

Under the framework of soft-collinear effective theory, we analyze the charmless B → V V decays in a global way at leading power in 1/m b and leading order in α s with V denoting a light vector meson. In the flavor SU(3) symmetry, decay amplitudes for the 28 decay modes are expressed in terms of 8 nonperturbative parameters. With 35 experimental results, we fit these 8 nonperturbative parameters. Annihilation contributions are neglected due to power suppression in the m b → ∞ limit, so we include in the fit the nonperturbative charm penguins, which will play an important role in understanding the direct CP asymmetries. Charming penguins are also responsible for the large transverse polarizations of penguin-dominated and color-suppressed decays. With the best fitted parameters, we calculate all possible physical observables of 28 decay modes, including branching fractions, direct CP asymmetries, and the complete set of polarization observables. Most of our results are compatible with the present experimental data when available, while the others can be examined on the ongoing LHCb experiment and the forthcoming Belle-II experiment. Moreover, the agreements and differences with results in QCD factorization and perturbative QCD approach are also discussed. A few observables are suggested to discriminate these different approaches. * Weak decays of B mesons can provide us not only an interesting avenue to understand the CP violation and the quark flavor mixing in the standard model (SM), but also a powerful means to probe new physics effects beyond the SM [1,2]. Experimentally, the B meson weak decays have been extensively investigated in the past decades at both e + e − colliders (B-factories) at SLAC and KEK, and hadronic environments such as Tevatron. The experimental results obtained by Babar, Belle, D0 and CDF collaborations have reached an unprecedented precision [3]. In recent years, with the running of LHC at CERN, the LHCb experiment has become the main player of the bottom quark. To date a large amount of bottom meson and baryon events has been accumulated, and a number of results related to non-leptonic decays have been released and more analyses are ongoing [4]. In addition, the forthcoming Belle-II experiment will further improve the experimental precision significantly [5].With the plethora of precise experimental data on nonleptonic decays at hand, theoretical predictions at the same level of accuracy are very much desired. However, for dealing with the hadronic B decays theoretically, the major obstacle is to reliably evaluate the hadronic matrix elements of local operators between the initial and final hadronic states, especially due to the nontrivial QCD dynamics involved. In the past two decades, three major QCD-inspired approaches had been proposed to calculate the charmless non-leptonic B decays, namely, QCD factorization (QCDF) [6], perturbative QCD (PQCD) [7], and soft-collinear effective theory (SCET) [8]. A prominent difference among them resides in the treatment of dynamical degrees of freed...

show abstract

“…The future prospects at Belle II [50] are also not comparable to those from the Kaon sector. Furthermore, the searches in the visible channels B → K + − ( = e, µ) at BaBar [51], Belle [52] and LHCb [53] are not applicable to the long-lived S case here.…”

Section: Laboratory Constraintsmentioning

confidence: 99%

Constraints on long-lived light scalars with flavor-changing couplings and the KOTO anomaly

Dev¹,

Mohapatra

Zhang

2020

Phys. Rev. D

View full text Add to dashboard Cite

Recently, the KOTO experiment at J-PARC has observed three anomalous events in the flavor-changing rare decay K L → π 0 νν, which indicates that the corresponding branching ratio is almost two orders of magnitude larger than the Standard Model (SM) prediction. Taking this intriguing result at face value, we explore model implications of its viable explanation by a long-lived light SM-singlet scalar (S) emission, i.e. K L → π 0 S, with S decaying outside the KOTO detector. We derive constraints on the parameter space of such a light scalar in the context of three simple models: (i) a real singlet scalar extension of the SM; (ii) a B − L extension where neutrino masses arise via type-I seesaw mechanism from B − L breaking; and (iii) a TeV-scale left-right symmetric model. The flavor-changing couplings needed to explain the KOTO excess in models (i) and (ii) originate from treelevel mixing of the scalar with SM Higgs field (h), and in model (iii), from the mixing of S and h with the neutral component of the heavy bidoublet Higgs field. After taking into account the stringent constraints from high-precision searches for flavor-changing charged and neutral kaon decays at NA62, E949, KOTO and CHARM experiments, as well as the astrophysical and cosmological constraints on a light scalar, such as those from supernova energy loss, big bang nucleosynthesis and relativistic degrees of freedom, we find that the light scalar interpretation of the KOTO excess is excluded in models (i) and (ii) by the supernova limit. However, there is still a narrow parameter space available in the TeVscale left-right symmetric model to explain the KOTO excess, which can be tested in future NA62 and DUNE experiments.

show abstract

Observation of a Significant Excess ofπ0π0Events inBMeson Decays

Cited by 81 publications

References 20 publications

Lepton polarization andCP-violating effects in theB¯→K
Falahati
¹
,
Zebarjad
²
,
Naeimipour
³

2016
Phys. Rev. D
1
0
0
0
View full text Add to dashboard Cite

Lepton polarization andCP-violating effects in theB¯→K
Falahati
¹
,
Zebarjad
²
,
Naeimipour
³

2016
Phys. Rev. D
1
0
0
0
View full text Add to dashboard Cite

Global analysis of charmless B decays into two vector mesons in soft-collinear effective theory

Constraints on long-lived light scalars with flavor-changing couplings and the KOTO anomaly

Contact Info

Product

Resources

About

Observation of a Significant Excess ofπ0π0Events inBMeson Decays

Cited by 81 publications

References 20 publications

Lepton polarization andCP-violating effects in theB¯→KFalahati1, Zebarjad2, Naeimipour3 2016Phys. Rev. D1000View full textAdd to dashboardCite

Lepton polarization andCP-violating effects in theB¯→KFalahati1, Zebarjad2, Naeimipour3 2016Phys. Rev. D1000View full textAdd to dashboardCite

Global analysis of charmless B decays into two vector mesons in soft-collinear effective theory

Constraints on long-lived light scalars with flavor-changing couplings and the KOTO anomaly

Contact Info

Product

Resources

About

Lepton polarization andCP-violating effects in theB¯→K
Falahati
¹
,
Zebarjad
²
,
Naeimipour
³

2016
Phys. Rev. D
1
0
0
0
View full text Add to dashboard Cite

Lepton polarization andCP-violating effects in theB¯→K
Falahati
¹
,
Zebarjad
²
,
Naeimipour
³

2016
Phys. Rev. D
1
0
0
0
View full text Add to dashboard Cite