New physics search in the doubly weak decay ■→K~+π~(-*)
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摘要
The doubly weak transition b-dd■ is highly suppressed in the Standard Model,which makes it a potential channel for exploring new physics signals.We present a study of the exclusive two-body wrong sign weak decay ■→K+π-,which belongs to this class,in the perturbative QCD framework.We perform a model independent analysis for various effective dimension-6 operators for which large effects are possible.We further analyze the considered process in the Randall-Sundrum model,including the custodially protected and the bulk-Higgs Randall-Sundrum models.Exploring the experimentally favored parameter space of these models leads to a large and significant enhancement of the decay rate compared to the Standard Model,which might be accessible in future experiments.We propose to search for the wrong sign decay ■→K+π-via flavor-tagged time-dependent analyses,which can be performed at LHCb and Belle-Ⅱ.
The doubly weak transition b-dd■ is highly suppressed in the Standard Model,which makes it a potential channel for exploring new physics signals.We present a study of the exclusive two-body wrong sign weak decay ■→K+π-,which belongs to this class,in the perturbative QCD framework.We perform a model independent analysis for various effective dimension-6 operators for which large effects are possible.We further analyze the considered process in the Randall-Sundrum model,including the custodially protected and the bulk-Higgs Randall-Sundrum models.Exploring the experimentally favored parameter space of these models leads to a large and significant enhancement of the decay rate compared to the Standard Model,which might be accessible in future experiments.We propose to search for the wrong sign decay ■→K+π-via flavor-tagged time-dependent analyses,which can be performed at LHCb and Belle-Ⅱ.
The doubly weak transition b-dd■ is highly suppressed in the Standard Model,which makes it a potential channel for exploring new physics signals.We present a study of the exclusive two-body wrong sign weak decay ■→K+π-,which belongs to this class,in the perturbative QCD framework.We perform a model independent analysis for various effective dimension-6 operators for which large effects are possible.We further analyze the considered process in the Randall-Sundrum model,including the custodially protected and the bulk-Higgs Randall-Sundrum models.Exploring the experimentally favored parameter space of these models leads to a large and significant enhancement of the decay rate compared to the Standard Model,which might be accessible in future experiments.We propose to search for the wrong sign decay ■→K+π-via flavor-tagged time-dependent analyses,which can be performed at LHCb and Belle-Ⅱ.
引文
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13S.Fajfer,J.F.Kamenik,and N.Kosnik,Phys.Rev.D,74:034027(2006),arXiv:hep-ph/0605260
14 D.Pirjol and J.Zupan,JHEP,02:028(2010),arXiv:0908.3150
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16BaBar Collaboration,B.Aubert et al,Phys.Rev.D,78:091102(2008),arXiv:0808.0900
17LHCb Collaboration,R.Aaij et al,Phys.Lett.B,765:307-316(2017),arXiv:1608.01478
18BaBar Collaboration,B.Aubert et al,Phys.Rev.Lett.,93:081801(2004),arXiv:hep-ex/0404005
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23M.E.Albrecht,M.Blanke,A.J.Buras et al,JHEP,09:064(2009),arXiv:0903.2415
24P.Biancofiore,P.Colangelo,and F.De Fazio,Phys.Rev.D,89(9):095018(2014),arXiv:1403.2944
25P.Biancofiore,P.Colangelo,F.De Fazio et al,Eur.Phys.J.C,75:134(2015),arXiv:1408.5614
26P.R.Archer,M.Carena,A.Carmona et al,JHEP,01:060(2015),arXiv:1408.5406
27 Y.-Y.Keum,H.-n.Li,and A.I.Sanda,Phys.Lett.B,504:6-14(2001),arXiv:hep-ph/0004004
28Y.Y.Keum,H.-N.Li,and A.I.Sanda,Phys.Rev.D,63:054008(2001),arXiv:hep-ph/0004173
29C.-D.Lü,K.Ukai,and M.-Z.Yang,Phys.Rev.D,63:074009(2001),arXiv:hep-ph/0004213
30W.Wang,Y.-L.Shen,Y.Li et al,Phys.Rev.D,74:114010(2006),arXiv:hep-ph/0609082
31 H.-n.Li and G.F.Sterman,Nucl.Phys.B,381:129-140(1992)
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35UTfit Collaboration,M.Bona et al,JHEP,03:049(2008),arXiv:0707.0636
36G.D’Ambrosio,G.F.Giudice,G.Isidori et al,Nucl.Phys.B,645:155-187(2002),arXiv:hep-ph/0207036
37A.J.Buras,P.H.Chankowski,J.Rosiek et al,Nucl.Phys.B,619:434-466(2001),arXiv:hep-ph/0107048
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39C.Csaki,A.Falkowski,and A.Weiler,JHEP,09:008(2008),arXiv:0804.1954
40M.Blanke,A.J.Buras,B.Duling et al,JHEP,03:001(2009),arXiv:0809.1073
41M.Bauer,S.Casagrande,U.Haisch et al,JHEP,09:017(2010),arXiv:0912.1625
42 B.Duling,JHEP,05:109(2010),arXiv:0912.4208
43D.Becirevic,M.Ciuchini,E.Franco et al,Nucl.Phys.B,634:105-119(2002),arXiv:hep-ph/0112303
44J.Aebischer,M.Fael,C.Greub et al,JHEP,09:158(2017),arXiv:1704.06639
45M.Bauer,S.Casagrande,L.Grunder et al,Phys.Rev.D,79:076001(2009),arXiv:0811.3678
46ATLAS Collaboration,G.Aad et al,JHEP,08:148(2015),arXiv:1505.07018
47CMS Collaboration,A.M.Sirunyan et al,JHEP,07:001(2017),arXiv:1704.03366
48R.Malm,M.Neubert,K.Novotny et al,JHEP,01:173(2014),arXiv:1303.5702
49B.M.Dillon and S.J.Huber,JHEP,06:066(2015),arXiv:1410.7345
50R.Malm,M.Neubert,and C.Schmell,JHEP,02:008(2015),arXiv:1408.4456
51A.Nasrullah,F.M.Bhutta,and M.J.Aslam,J.Phys.G,45:095007(2018),arXiv:arXiv:1805.01393
52 P.Ball,JHEP,09:005(1998),arXiv:hep-ph/9802394
53 P.Ball,JHEP,01:010(1999),arXiv:hep-ph/9812375
54P.Ball and R.Zwicky,Phys.Rev.D,71:014015(2005),arXiv:hep-ph/0406232
55 H.-n.Li and B.Melic,Eur.Phys.J.C,11:695-702(1999),arXiv:hep-ph/9902205
2D.Choudhury,B.Dutta,and A.Kundu,Phys.Lett.B,456:185-193(1999),arXiv:hep-ph/9812209
3Y.Grossman,M.Neubert,and A.L.Kagan,JHEP,10:029(1999),arXiv:hep-ph/9909297
4H.-n.Li,S.Mishima,and A.I.Sanda,Phys.Rev.D,72:114005(2005),arXiv:hep-ph/0508041
5V.Barger,C.-W.Chiang,P.Langacker et al,Phys.Lett.B,598:218-226(2004),arXiv:hep-ph/0406126
6M.Imbeault,S.Baek,and D.London,Phys.Lett.B,663:410-415(2008),arXiv:0802.1175
7K.Huitu,C.-D.Lü,P.Singer et al,Phys.Rev.Lett.,81:4313-4316(1998),arXiv:hep-ph/9809566
8K.Huitu,C.-D.Lü,P.Singer et al,Phys.Lett.B,445:394-398(1999),arXiv:hep-ph/9812253
9X.-H.Wu and D.-X.Zhang,Phys.Lett.B,587:95-99(2004),arXiv:hep-ph/0312177
10S.Fajfer and P.Singer,Phys.Rev.D,65:017301(2002),arXiv:hep-ph/0110233
11S.Fajfer and P.Singer,Phys.Rev.D,62:117702(2000),arXiv:hep-ph/0007132
12S.Fajfer,J.F.Kamenik,and P.Singer,Phys.Rev.D,70:074022(2004),arXiv:hep-ph/0407223
13S.Fajfer,J.F.Kamenik,and N.Kosnik,Phys.Rev.D,74:034027(2006),arXiv:hep-ph/0605260
14 D.Pirjol and J.Zupan,JHEP,02:028(2010),arXiv:0908.3150
15Belle Collaboration,A.Garmash et al,Phys.Rev.D,69:012001(2004),arXiv:hep-ex/0307082
16BaBar Collaboration,B.Aubert et al,Phys.Rev.D,78:091102(2008),arXiv:0808.0900
17LHCb Collaboration,R.Aaij et al,Phys.Lett.B,765:307-316(2017),arXiv:1608.01478
18BaBar Collaboration,B.Aubert et al,Phys.Rev.Lett.,93:081801(2004),arXiv:hep-ex/0404005
19L.Randall and R.Sundrum,Phys.Rev.Lett.,83:3370-3373(1999),arXiv:hep-ph/9905221
20Y.Grossman and M.Neubert,Phys.Lett.B,474:361-371(2000),arXiv:hep-ph/9912408
21K.Agashe,R.Contino,L.Da Rold et al,Phys.Lett.B,641:62-66(2006),arXiv:hep-ph/0605341
22M.Carena,E.Ponton,J.Santiago et al,Nucl.Phys.B,759:202-227(2006),arXiv:hep-ph/0607106
23M.E.Albrecht,M.Blanke,A.J.Buras et al,JHEP,09:064(2009),arXiv:0903.2415
24P.Biancofiore,P.Colangelo,and F.De Fazio,Phys.Rev.D,89(9):095018(2014),arXiv:1403.2944
25P.Biancofiore,P.Colangelo,F.De Fazio et al,Eur.Phys.J.C,75:134(2015),arXiv:1408.5614
26P.R.Archer,M.Carena,A.Carmona et al,JHEP,01:060(2015),arXiv:1408.5406
27 Y.-Y.Keum,H.-n.Li,and A.I.Sanda,Phys.Lett.B,504:6-14(2001),arXiv:hep-ph/0004004
28Y.Y.Keum,H.-N.Li,and A.I.Sanda,Phys.Rev.D,63:054008(2001),arXiv:hep-ph/0004173
29C.-D.Lü,K.Ukai,and M.-Z.Yang,Phys.Rev.D,63:074009(2001),arXiv:hep-ph/0004213
30W.Wang,Y.-L.Shen,Y.Li et al,Phys.Rev.D,74:114010(2006),arXiv:hep-ph/0609082
31 H.-n.Li and G.F.Sterman,Nucl.Phys.B,381:129-140(1992)
32H.-n.Li,Phys.Rev.D,66:094010(2002),arXiv:hepph/0102013
33H.-n.Li and B.Tseng,Phys.Rev.D,57:443-451(1998),arXiv:hep-ph/9706441
34C.-D.Lü,F.Munir,and Q.Qin,Chin.Phys.C,41(5):053106(2017),arXiv:1607.07713
35UTfit Collaboration,M.Bona et al,JHEP,03:049(2008),arXiv:0707.0636
36G.D’Ambrosio,G.F.Giudice,G.Isidori et al,Nucl.Phys.B,645:155-187(2002),arXiv:hep-ph/0207036
37A.J.Buras,P.H.Chankowski,J.Rosiek et al,Nucl.Phys.B,619:434-466(2001),arXiv:hep-ph/0107048
38K.Agashe,M.Papucci,G.Perez et al,Next to minimal flavor violation,[hep-ph/0509117]
39C.Csaki,A.Falkowski,and A.Weiler,JHEP,09:008(2008),arXiv:0804.1954
40M.Blanke,A.J.Buras,B.Duling et al,JHEP,03:001(2009),arXiv:0809.1073
41M.Bauer,S.Casagrande,U.Haisch et al,JHEP,09:017(2010),arXiv:0912.1625
42 B.Duling,JHEP,05:109(2010),arXiv:0912.4208
43D.Becirevic,M.Ciuchini,E.Franco et al,Nucl.Phys.B,634:105-119(2002),arXiv:hep-ph/0112303
44J.Aebischer,M.Fael,C.Greub et al,JHEP,09:158(2017),arXiv:1704.06639
45M.Bauer,S.Casagrande,L.Grunder et al,Phys.Rev.D,79:076001(2009),arXiv:0811.3678
46ATLAS Collaboration,G.Aad et al,JHEP,08:148(2015),arXiv:1505.07018
47CMS Collaboration,A.M.Sirunyan et al,JHEP,07:001(2017),arXiv:1704.03366
48R.Malm,M.Neubert,K.Novotny et al,JHEP,01:173(2014),arXiv:1303.5702
49B.M.Dillon and S.J.Huber,JHEP,06:066(2015),arXiv:1410.7345
50R.Malm,M.Neubert,and C.Schmell,JHEP,02:008(2015),arXiv:1408.4456
51A.Nasrullah,F.M.Bhutta,and M.J.Aslam,J.Phys.G,45:095007(2018),arXiv:arXiv:1805.01393
52 P.Ball,JHEP,09:005(1998),arXiv:hep-ph/9802394
53 P.Ball,JHEP,01:010(1999),arXiv:hep-ph/9812375
54P.Ball and R.Zwicky,Phys.Rev.D,71:014015(2005),arXiv:hep-ph/0406232
55 H.-n.Li and B.Melic,Eur.Phys.J.C,11:695-702(1999),arXiv:hep-ph/9902205