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Flavor signatures of isosinglet vector-like down quark model. (English) Zbl 1334.81116

Summary: We consider a model where the standard model is extended by the addition of a vector-like isosinglet down-type quark \(b'\). We perform a \(\chi^2\) fit to the flavor physics data and obtain the preferred central values along with errors of all the elements of the measurable \(3 \times 4\) quark mixing matrix. The fit indicates that all the new-physics parameters are consistent with zero and the mixing of the \(b'\) quark with the other three is constrained to be small. The current flavor physics data rules out possibility of detectable new physics signals in most of the flavor physics observables. We also investigate possible deviations in the standard model Wtb couplings and bottom quark coupling to Higgs boson. We find that these deviations are less than a percent level which is too small to be observed at the LHC with current precision.

MSC:

81V22 Unified quantum theories
81V05 Strong interaction, including quantum chromodynamics

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References:

[1] Silverman, D., Phys. Rev. D, 45, 1800 (1992)
[2] Barenboim, G.; Botella, F. J., Phys. Lett. B, 433, 385 (1998)
[3] Barenboim, G.; Botella, F. J.; Vives, O., Phys. Rev. D, 64, Article 015007 pp. (2001)
[4] Barenboim, G.; Botella, F. J.; Vives, O., Nucl. Phys. B, 613, 285 (2001)
[5] Hawkins, D.; Silverman, D., Phys. Rev. D, 66, Article 016008 pp. (2002)
[6] Aguilar-Saavedra, J. A., Phys. Rev. D, 69, Article 099901 pp. (2004), (Erratum)
[7] Alok, A. K.; Baek, S.; London, D., J. High Energy Phys., 1107, Article 111 pp. (2011)
[8] Cacciapaglia, G.; Deandrea, A.; Panizzi, L.; Gaur, N.; Harada, D.; Okada, Y., J. High Energy Phys., 1203, Article 070 pp. (2012)
[9] Botella, F. J.; Branco, G. C.; Nebot, M., J. High Energy Phys., 1212, Article 040 pp. (2012)
[10] Okada, Y.; Panizzi, L.
[11] Alok, A. K.; Gangal, S., Phys. Rev. D, 86, Article 114009 pp. (2012)
[12] Aguilar-Saavedra, J. A.; Benbrik, R.; Heinemeyer, S.; Pérez-Victoria, M., Phys. Rev. D, 88, 9, Article 094010 pp. (2013)
[13] Ellis, S. A.R.; Godbole, R. M.; Gopalakrishna, S.; Wells, J. D., J. High Energy Phys., 1409, Article 130 pp. (2014)
[14] Alok, A. K.; Banerjee, S.; Kumar, D.; Sankar, S. U.; London, D., Phys. Rev. D, 92, Article 013002 pp. (2015)
[15] Ishiwata, K.; Ligeti, Z.; Wise, M. B.
[16] Eberhardt, O.; Herbert, G.; Lacker, H.; Lenz, A.; Menzel, A.; Nierste, U.; Wiebusch, M., Phys. Rev. Lett., 109, Article 241802 pp. (2012)
[17] Botella, F. J.; Chau, L. L., Phys. Lett. B, 168, 97 (1986)
[18] Fritzsch, H.; Plankl, J., Phys. Rev. D, 35, 1732 (1987)
[19] Harari, H.; Leurer, M., Phys. Lett. B, 181, 123 (1986)
[20] Amhis, Y.
[21] Schael, S., Phys. Rep., 427, 257 (2006)
[22] Lees, J. P., Phys. Rev. Lett., 112, Article 211802 pp. (2014)
[23] Aaij, R., J. High Energy Phys., 1406, Article 133 pp. (2014)
[24] Aaij, R., J. High Energy Phys., 1212, Article 125 pp. (2012)
[25] Isidori, G.; Unterdorfer, R., J. High Energy Phys., 0401, Article 009 pp. (2004)
[26] Aaij, R., Phys. Rev. Lett., 111, Article 101805 pp. (2013)
[27] Chatrchyan, S., Phys. Rev. Lett., 111, Article 101804 pp. (2013)
[28] Khachatryan, V.
[29] Abazov, V. M., Phys. Rev. D, 89, 1, Article 012002 pp. (2014)
[30] Olive, K. A., Chin. Phys. C, 38, Article 090001 pp. (2014)
[31] Aaij, R., J. High Energy Phys., 1308, Article 131 pp. (2013)
[32] Aaij, R., Phys. Rev. Lett., 111, 19, Article 191801 pp. (2013)
[33] Herrlich, S.; Nierste, U., Nucl. Phys. B, 476, 27 (1996)
[34] Brod, J.; Gorbahn, M., Phys. Rev. D, 82, Article 094026 pp. (2010)
[35] Buras, A. J.; Jamin, M.; Weisz, P. H., Nucl. Phys. B, 347, 491 (1990)
[36] Laiho, J.; Lunghi, E.; Van de Water, R. S., Phys. Rev. D, 81, Article 034503 pp. (2010)
[37] Aoki, S., Eur. Phys. J. C, 74, 2890 (2014)
[38] Buras, A. J.; Duling, B.; Feldmann, T.; Heidsieck, T.; Promberger, C.; Recksiegel, S., J. High Energy Phys., 1007, Article 094 pp. (2010)
[39] Buras, A. J.; Guadagnoli, D., Phys. Rev. D, 78, Article 033005 pp. (2008)
[40] Buras, A. J.; Guadagnoli, D.; Isidori, G., Phys. Lett. B, 688, 309 (2010)
[41] Batley, J. R., Phys. Lett. B, 544, 97 (2002)
[42] Alavi-Harati, A., Phys. Rev. D, 70, Article 079904 pp. (2004), (Erratum)
[43] Worcester, E. T.
[44] Buras, A. J.; Silvestrini, L., Nucl. Phys. B, 546, 299 (1999)
[45] Buras, A. J.; Buttazzo, D.; Knegjens, R.
[46] Bardeen, W. A.; Buras, A. J.; Gerard, J. M., Nucl. Phys. B, 293, 787 (1987)
[47] Buras, A. J.; Gérard, J. M.; Bardeen, W. A., Eur. Phys. J. C, 74, 2871 (2014)
[48] Blum, T., Phys. Rev. D, 91, 7, Article 074502 pp. (2015)
[49] Bai, Z.
[50] Buras, A. J.; Gorbahn, M.; Jäger, S.; Jamin, M.
[51] Rein, D.; Sehgal, L. M., Phys. Rev. D, 39, 3325 (1989)
[52] Hagelin, J. S.; Littenberg, L. S., Prog. Part. Nucl. Phys., 23, 1 (1989)
[53] Inami, T.; Lim, C. S., Prog. Theor. Phys., 65, 1772 (1981), (Erratum)
[54] Buras, A. J.; Munz, M., Phys. Rev. D, 52, 186 (1995)
[55] Iwasaki, M., Phys. Rev. D, 72, Article 092005 pp. (2005)
[56] Mahmoudi, F., Comput. Phys. Commun., 178, 745 (2008)
[57] Mahmoudi, F., Comput. Phys. Commun., 180, 1579 (2009)
[58] Ghinculov, A.; Hurth, T.; Isidori, G.; Yao, Y. P., Nucl. Phys. B, 685, 351 (2004)
[59] Huber, T.; Lunghi, E.; Misiak, M.; Wyler, D., Nucl. Phys. B, 740, 105 (2006)
[60] Huber, T.; Hurth, T.; Lunghi, E., Nucl. Phys. B, 802, 40 (2008)
[61] Asatryan, H. H.; Asatrian, H. M.; Greub, C.; Walker, M., Phys. Rev. D, 66, Article 034009 pp. (2002)
[62] Bobeth, C.; Hiller, G.; Piranishvili, G., J. High Energy Phys., 0712, Article 040 pp. (2007)
[63] Bobeth, C.; Hiller, G.; van Dyk, D.; Wacker, C., J. High Energy Phys., 1201, Article 107 pp. (2012)
[64] Beneke, M.; Feldmann, T.; Seidel, D., Nucl. Phys. B, 612, 25 (2001)
[65] Descotes-Genon, S.; Matias, J.; Virto, J., Phys. Rev. D, 88, 7, Article 074002 pp. (2013)
[66] Descotes-Genon, S.; Hurth, T.; Matias, J.; Virto, J., J. High Energy Phys., 1305, Article 137 pp. (2013)
[67] Hurth, T.; Mahmoudi, F., J. High Energy Phys., 1404, Article 097 pp. (2014)
[68] Hurth, T.; Mahmoudi, F.; Neshatpour, S., J. High Energy Phys., 1412, Article 053 pp. (2014)
[69] Wang, J. J.; Wang, R. M.; Xu, Y. G.; Yang, Y. D., Phys. Rev. D, 77, Article 014017 pp. (2008)
[70] Ball, P.; Zwicky, R., Phys. Rev. D, 71, Article 014015 pp. (2005)
[71] Botella, F. J.; Branco, G. C.; Nebot, M.; Sanchez, A.
[72] Lavoura, L.; Silva, J. P., Phys. Rev. D, 47, 2046 (1993)
[73] Golowich, E.; Hewett, J.; Pakvasa, S.; Petrov, A. A., Phys. Rev. D, 76, Article 095009 pp. (2007)
[74] Donoghue, J. F.; Golowich, E.; Holstein, B. R.; Trampetic, J., Phys. Rev. D, 33, 179 (1986)
[75] Georgi, H., Phys. Lett. B, 297, 353 (1992)
[76] Ohl, T.; Ricciardi, G.; Simmons, E. H., Nucl. Phys. B, 403, 605 (1993)
[77] Golowich, E.; Petrov, A. A., Phys. Lett. B, 427, 172 (1998)
[78] Bigi, I. I.Y.; Uraltsev, N. G., Nucl. Phys. B, 592, 92 (2001)
[79] Falk, A. F.; Grossman, Y.; Ligeti, Z.; Petrov, A. A., Phys. Rev. D, 65, Article 054034 pp. (2002)
[80] Bianco, S.; Fabbri, F. L.; Benson, D.; Bigi, I., Riv. Nuovo Cimento, 26, 7, 1 (2003)
[81] Falk, A. F.; Grossman, Y.; Ligeti, Z.; Nir, Y.; Petrov, A. A., Phys. Rev. D, 69, Article 114021 pp. (2004)
[82] Golowich, E.; Petrov, A. A., Phys. Lett. B, 625, 53 (2005)
[83] Petrov, A. A.
[84] Branco, G. C.; Parada, P. A.; Rebelo, M. N., Phys. Rev. D, 52, 4217 (1995)
[85] Ciuchini, M.; Franco, E.; Guadagnoli, D.; Lubicz, V.; Pierini, M.; Porretti, V.; Silvestrini, L., Phys. Lett. B, 655, 162 (2007)
[86] Buras, A. J.; Fleischer, R., Adv. Ser. Dir. High Energy Phys., 15, 65 (1998)
[87] Buras, A. J.; Gorbahn, M.; Haisch, U.; Nierste, U., J. High Energy Phys., 1211, Article 167 pp. (2012), (Erratum)
[88] Brod, J.; Gorbahn, M., Phys. Rev. D, 78, Article 034006 pp. (2008)
[89] Ahn, J. K., Phys. Rev. D, 81, Article 072004 pp. (2010)
[90] Altmannshofer, W.; Ball, P.; Bharucha, A.; Buras, A. J.; Straub, D. M.; Wick, M., J. High Energy Phys., 0901, Article 019 pp. (2009)
[91] Alok, A. K.; Datta, A.; Dighe, A.; Duraisamy, M.; Ghosh, D.; London, D., J. High Energy Phys., 1111, Article 122 pp. (2011)
[92] Aaij, R., J. High Energy Phys., 1409, Article 177 pp. (2014)
[93] Aaltonen, T., CDF Note, 10793 (2012)
[94] Aad, G., Phys. Lett. B, 717, 330 (2012)
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