Search

Your search keyword '"Bakker, B"' showing total 1,463 results
Start Over Author "Bakker, B"

Refine your results

more »

more »

more »

more »
1,463 results on '"Bakker, B"'

3. The charmed mesons in the region above 3.0 GeV

Author

Badalian, A. M. and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

The masses of excited charmed mesons are shown to decrease by $\sim (50-150)$~MeV due to a flattening of the confining potential at large distances, which effectively takes into account open decay channels. The scale of the mass shifts is similar to that in charmonium for $\psi(4660)$ and $\chi_{c0}(4700)$. The following masses of the first excitations: $M(2\,{}^3P_0)=2874$~MeV, $M(2\,{}^3P_2)=2968$~MeV, $M(2\,{}^3D_1)=3175$~MeV, and $M(2\,{}^3D_3)=3187$~MeV, and second excitations: $M(3\,{}^1S_0)=3008$~MeV, $M(3\,{}^3S_1)=3062$~MeV, $M(3\,{}^3P_0)=3229$~MeV, and $M(3\,{}^3P_2) =3264$~MeV, are predicted. The other states with $L=0,1,2$ and $n_r \geq 3$ have their masses in the region $M(nL)\geq 3.3$~GeV., Comment: 15 pages, 4 tables

Published
2020
Full Text
View/download PDF

7. Cover

Author

Bakker, B. H.

Published
1971

11. Index

Author

Bakker, B. H.

Published
1971

13. Appendices

Author

Bakker, B. H.

Published
1971

15. Preface

Author

Bakker, B. H.

Published
1971

18. The Regge trajectories and leptonic widths of the vector $s\bar s$ mesons

Author

Badalian, A. M. and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

The spectrum of the $s\bar s$ mesons is studied performing a phenomenological analysis of the Regge trajectories defined for the excitation energies. For the $\phi(3 ^3S_1)$ state the mass $M(\phi(3S))=2100(20)$ MeV and the leptonic width $\Gamma_{ee}(\phi(3S))=0.27(2)$ keV are obtained, while the mass of the $2 ^3D_1$ state, $M(\phi(2 ^3D_3))=2180(5)$ MeV, appears to be in agreement with the mass of the $\phi(2170)$ resonance, and its leptonic width, $\Gamma_{ee}(2 ^3D_1)=0.20\pm 0.10$ keV, has a large theoretical uncertainty, depending on the parameters of the flattened confining potential., Comment: 7 pages, no figures

Published
2019
Full Text
View/download PDF

19. Dynamics of the quark-antiquark interaction and the universality of Regge trajectories

Author

Badalian, A. M. and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

The dynamical picture of a quark-antiquark interaction in light mesons, which provides linearity of radial and orbital Regge trajectories (RT), is studied with the use of the relativistic string Hamiltonian with flattened confining potential and taking into account the self-energy and string corrections. Due to the flattening effect both slopes, $\beta_n$ of the radial and $\beta_l$ of the orbital RT, decrease by $\sim 30\%$ with the value of $\beta_n=1.30(5)$~GeV$^2$ being larger than $ \beta_l=0.95(5)$~GeV. The self-energy correction provides the linearity of RT and remains important up to very high excitations; the string correction decreases the slope of the orbital RT, while the intercept $\beta_0=0.51(1)~ $GeV$^2$ is equal to the squared centroid mass of $\rho(1S)$. If the universal gluon-exchanged potential without fitting parameters and screening function, as in heavy quarkonia, is taken, then the slope of the radial RT decreases, $\beta_n=1.15(8)$~GeV$^2$, and its value coincides with the slope of the orbital RT, $\beta_l=1.08(8)$~GeV$^2$ within theoretical errors, producing the universal RT., Comment: 11 pages, two figures

Published
2019
Full Text
View/download PDF

20. Mixed responses to targeted therapy driven by chromosomal instability through p53 dysfunction and genome doubling

Author

Hobor, S, Al Bakir, M, Hiley, C, Skrzypski, M, Frankell, A, Bakker, B, Watkins, T, Markovets, A, Dry, J, Brown, A, van der Aart, J, van den Bos, H, Spierings, D, Oukrif, D, Novelli, M, Chakrabarti, T, Rabinowitz, A, Ait Hassou, L, Litiere, S, Kerr, D, Tan, L, Kelly, G, Moore, D, Renshaw, M, Venkatesan, S, Hill, W, Huebner, A, Martinez-Ruiz, C, Black, J, Wu, W, Angelova, M, Mcgranahan, N, Downward, J, Chmielecki, J, Barrett, C, Litchfield, K, Chew, S, Blakely, C, de Bruin, E, Foijer, F, Vousden, K, Bivona, T, Lester, J, Bajaj, A, Nakas, A, Sodha-Ramdeen, A, Tufail, M, Scotland, M, Boyles, R, Rathinam, S, Wilson, C, Marrone, D, Dulloo, S, Fennell, D, Matharu, G, Shaw, J, Boleti, E, Cheyne, H, Khalil, M, Richardson, S, Cruickshank, T, Price, G, Kerr, K, Benafif, S, French, J, Gilbert, K, Naidu, B, Patel, A, Osman, A, Enstone, C, Langman, G, Shackleford, H, Djearaman, M, Kadiri, S, Middleton, G, Leek, A, Hodgkinson, J, Totton, N, Montero, A, Smith, E, Fontaine, E, Granato, F, Paiva-Correia, A, Novasio, J, Rammohan, K, Joseph, L, Bishop, P, Shah, R, Moss, S, Joshi, V, Crosbie, P, Brown, K, Carter, M, Chaturvedi, A, Oliveira, P, Lindsay, C, Blackhall, F, Krebs, M, Summers, Y, Clipson, A, Tugwood, J, Kerr, A, Rothwell, D, Dive, C, Aerts, H, Schwarz, R, Kaufmann, T, Wilson, G, Rosenthal, R, Van Loo, P, Birkbak, N, Szallasi, Z, Kisistok, J, Sokac, M, Salgado, R, Diossy, M, Demeulemeester, J, Bunkum, A, Dwornik, A, Magness, A, Rowan, A, Karamani, A, Toncheva, A, Chain, B, Castignani, C, Bailey, C, Abbosh, C, Puttick, C, Weeden, C, Lee, C, Richard, C, Naceur-Lombardelli, C, Pearce, D, Karagianni, D, Biswas, D, Levi, D, Larose Cadieux, E, Lim, E, Colliver, E, Nye, E, Galvez-Cancino, F, Gimeno-Valiente, F, Kassiotis, G, Stavrou, G, Mastrokalos, G, Lowe, H, Matos, I, Noorani, I, Goldman, J, Reading, J, Rane, J, Nicod, J, Hartley, J, Peggs, K, Enfield, K, Selvaraju, K, Thol, K, Ng, K, Chen, K, Dijkstra, K, Grigoriadis, K, Thakkar, K, Ensell, L, Shah, M, Litovchenko, M, Jamal-Hanjani, M, Werner Sunderland, M, Huska, M, Hill, M, Dietzen, M, Leung, M, Escudero, M, Tanic, M, Sivakumar, M, Chervova, O, Lucas, O, Pich, O, Al-Sawaf, O, Prymas, P, Hobson, P, Pawlik, P, Stone, R, Bentham, R, Vendramin, R, Saghafinia, S, Gamble, S, Veeriah, S, Ung, S, Quezada, S, Vanloo, S, Hessey, S, Ward, S, Harries, S, Boeing, S, Beck, S, Bola, S, Karasaki, T, Denner, T, Marafioti, T, Jones, T, Spanswick, V, Barbe, V, Lu, W, Liu, W, Wu, Y, Naito, Y, Ramsden, Z, Veiga, C, Royle, G, Collins-Fekete, C, Fraioli, F, Ashford, P, Forster, M, Lee, S, Borg, E, Falzon, M, Papadatos-Pastos, D, Wilson, J, Ahmad, T, Procter, A, Ahmed, A, Taylor, M, Nair, A, Lawrence, D, Patrini, D, Navani, N, Thakrar, R, Janes, S, Martinoni Hoogenboom, E, Monk, F, Holding, J, Choudhary, J, Bhakhri, K, Scarci, M, Gorman, P, Khiroya, R, Stephens, R, Wong, Y, Kaplar, Z, Bandula, S, Hackshaw, A, Hacker, A, Sharp, A, Smith, S, Kaur Dhanda, H, Pilotti, C, Leslie, R, Grapa, A, Zhang, H, Abduljabbar, K, Pan, X, Yuan, Y, Chuter, D, Mackenzie, M, Chee, S, Alzetani, A, Cave, J, Richards, J, De Sousa, P, Jordan, S, Rice, A, Raubenheimer, H, Bhayani, H, Ambrose, L, Devaraj, A, Chavan, H, Begum, S, Buderi, S, Kaniu, D, Malima, M, Booth, S, Nicholson, A, Fernandes, N, Shah, P, Proli, C, Hewish, M, Danson, S, Shackcloth, M, Robinson, L, Russell, P, Blyth, K, Kidd, A, Dick, C, Le Quesne, J, Kirk, A, Asif, M, Bilancia, R, Kostoulas, N, Thomas, M, Hynds, R, Kanu, N, Zaccaria, S, Gronroos, E, Swanton, C, Hobor S., Al Bakir M., Hiley C. T., Skrzypski M., Frankell A. M., Bakker B., Watkins T. B. K., Markovets A., Dry J. R., Brown A. P., van der Aart J., van den Bos H., Spierings D., Oukrif D., Novelli M., Chakrabarti T., Rabinowitz A. H., Ait Hassou L., Litiere S., Kerr D. L., Tan L., Kelly G., Moore D. A., Renshaw M. J., Venkatesan S., Hill W., Huebner A., Martinez-Ruiz C., Black J. R. M., Wu W., Angelova M., McGranahan N., Downward J., Chmielecki J., Barrett C., Litchfield K., Chew S. K., Blakely C. M., de Bruin E. C., Foijer F., Vousden K. H., Bivona T. G., Lester J. F., Bajaj A., Nakas A., Sodha-Ramdeen A., Tufail M., Scotland M., Boyles R., Rathinam S., Wilson C., Marrone D., Dulloo S., Fennell D. A., Matharu G., Shaw J. A., Boleti E., Cheyne H., Khalil M., Richardson S., Cruickshank T., Price G., Kerr K. M., Benafif S., French J., Gilbert K., Naidu B., Patel A. J., Osman A., Enstone C., Langman G., Shackleford H., Djearaman M., Kadiri S., Middleton G., Leek A., Hodgkinson J. D., Totton N., Montero A., Smith E., Fontaine E., Granato F., Paiva-Correia A., Novasio J., Rammohan K., Joseph L., Bishop P., Shah R., Moss S., Joshi V., Crosbie P. A. J., Brown K. D., Carter M., Chaturvedi A., Oliveira P., Lindsay C. R., Blackhall F. H., Krebs M. G., Summers Y., Clipson A., Tugwood J., Kerr A., Rothwell D. G., Dive C., Aerts H. J. W. L., Schwarz R. F., Kaufmann T. L., Wilson G. A., Rosenthal R., Van Loo P., Birkbak N. J., Szallasi Z., Kisistok J., Sokac M., Salgado R., Diossy M., Demeulemeester J., Bunkum A., Dwornik A., Magness A., Rowan A. J., Karamani A., Toncheva A., Chain B., Castignani C., Bailey C., Abbosh C., Puttick C., Weeden C. E., Lee C., Richard C., Naceur-Lombardelli C., Pearce D. R., Karagianni D., Biswas D., Levi D., Larose Cadieux E., Lim E. L., Colliver E., Nye E., Galvez-Cancino F., Gimeno-Valiente F., Kassiotis G., Stavrou G., Mastrokalos G. -T., Lowe H. L., Matos I. G., Noorani I., Goldman J., Reading J. L., Rane J. K., Nicod J., Hartley J. A., Peggs K. S., Enfield K. S. S., Selvaraju K., Thol K., Ng K. W., Chen K., Dijkstra K., Grigoriadis K., Thakkar K., Ensell L., Shah M., Litovchenko M., Jamal-Hanjani M., Werner Sunderland M., Huska M. R., Hill M. S., Dietzen M., Leung M. M., Escudero M., Tanic M., Sivakumar M., Chervova O., Lucas O., Pich O., Al-Sawaf O., Prymas P., Hobson P., Pawlik P., Stone R. K., Bentham R., Vendramin R., Saghafinia S., Gamble S., Veeriah S., Ung S. K. A., Quezada S. A., Vanloo S., Hessey S., Ward S., Harries S., Boeing S., Beck S., Bola S. K., Karasaki T., Denner T., Marafioti T., Jones T. P., Spanswick V., Barbe V., Lu W. -T., Liu W. K., Wu Y., Naito Y., Ramsden Z., Veiga C., Royle G., Collins-Fekete C. -A., Fraioli F., Ashford P., Forster M. D., Lee S. M., Borg E., Falzon M., Papadatos-Pastos D., Wilson J., Ahmad T., Procter A. J., Ahmed A., Taylor M. N., Nair A., Lawrence D., Patrini D., Navani N., Thakrar R. M., Janes S. M., Martinoni Hoogenboom E., Monk F., Holding J. W., Choudhary J., Bhakhri K., Scarci M., Gorman P., Khiroya R., Stephens R. C. M., Wong Y. N. S., Kaplar Z., Bandula S., Hackshaw A., Hacker A. -M., Sharp A., Smith S., Kaur Dhanda H., Pilotti C., Leslie R., Grapa A., Zhang H., AbdulJabbar K., Pan X., Yuan Y., Chuter D., MacKenzie M., Chee S., Alzetani A., Cave J., Richards J., Lim E., De Sousa P., Jordan S., Rice A., Raubenheimer H., Bhayani H., Ambrose L., Devaraj A., Chavan H., Begum S., Buderi S. I., Kaniu D., Malima M., Booth S., Nicholson A. G., Fernandes N., Shah P., Proli C., Hewish M., Danson S., Shackcloth M. J., Robinson L., Russell P., Blyth K. G., Kidd A., Dick C., Le Quesne J., Kirk A., Asif M., Bilancia R., Kostoulas N., Thomas M., Hynds R. E., Kanu N., Zaccaria S., Gronroos E., Swanton C., Hobor, S, Al Bakir, M, Hiley, C, Skrzypski, M, Frankell, A, Bakker, B, Watkins, T, Markovets, A, Dry, J, Brown, A, van der Aart, J, van den Bos, H, Spierings, D, Oukrif, D, Novelli, M, Chakrabarti, T, Rabinowitz, A, Ait Hassou, L, Litiere, S, Kerr, D, Tan, L, Kelly, G, Moore, D, Renshaw, M, Venkatesan, S, Hill, W, Huebner, A, Martinez-Ruiz, C, Black, J, Wu, W, Angelova, M, Mcgranahan, N, Downward, J, Chmielecki, J, Barrett, C, Litchfield, K, Chew, S, Blakely, C, de Bruin, E, Foijer, F, Vousden, K, Bivona, T, Lester, J, Bajaj, A, Nakas, A, Sodha-Ramdeen, A, Tufail, M, Scotland, M, Boyles, R, Rathinam, S, Wilson, C, Marrone, D, Dulloo, S, Fennell, D, Matharu, G, Shaw, J, Boleti, E, Cheyne, H, Khalil, M, Richardson, S, Cruickshank, T, Price, G, Kerr, K, Benafif, S, French, J, Gilbert, K, Naidu, B, Patel, A, Osman, A, Enstone, C, Langman, G, Shackleford, H, Djearaman, M, Kadiri, S, Middleton, G, Leek, A, Hodgkinson, J, Totton, N, Montero, A, Smith, E, Fontaine, E, Granato, F, Paiva-Correia, A, Novasio, J, Rammohan, K, Joseph, L, Bishop, P, Shah, R, Moss, S, Joshi, V, Crosbie, P, Brown, K, Carter, M, Chaturvedi, A, Oliveira, P, Lindsay, C, Blackhall, F, Krebs, M, Summers, Y, Clipson, A, Tugwood, J, Kerr, A, Rothwell, D, Dive, C, Aerts, H, Schwarz, R, Kaufmann, T, Wilson, G, Rosenthal, R, Van Loo, P, Birkbak, N, Szallasi, Z, Kisistok, J, Sokac, M, Salgado, R, Diossy, M, Demeulemeester, J, Bunkum, A, Dwornik, A, Magness, A, Rowan, A, Karamani, A, Toncheva, A, Chain, B, Castignani, C, Bailey, C, Abbosh, C, Puttick, C, Weeden, C, Lee, C, Richard, C, Naceur-Lombardelli, C, Pearce, D, Karagianni, D, Biswas, D, Levi, D, Larose Cadieux, E, Lim, E, Colliver, E, Nye, E, Galvez-Cancino, F, Gimeno-Valiente, F, Kassiotis, G, Stavrou, G, Mastrokalos, G, Lowe, H, Matos, I, Noorani, I, Goldman, J, Reading, J, Rane, J, Nicod, J, Hartley, J, Peggs, K, Enfield, K, Selvaraju, K, Thol, K, Ng, K, Chen, K, Dijkstra, K, Grigoriadis, K, Thakkar, K, Ensell, L, Shah, M, Litovchenko, M, Jamal-Hanjani, M, Werner Sunderland, M, Huska, M, Hill, M, Dietzen, M, Leung, M, Escudero, M, Tanic, M, Sivakumar, M, Chervova, O, Lucas, O, Pich, O, Al-Sawaf, O, Prymas, P, Hobson, P, Pawlik, P, Stone, R, Bentham, R, Vendramin, R, Saghafinia, S, Gamble, S, Veeriah, S, Ung, S, Quezada, S, Vanloo, S, Hessey, S, Ward, S, Harries, S, Boeing, S, Beck, S, Bola, S, Karasaki, T, Denner, T, Marafioti, T, Jones, T, Spanswick, V, Barbe, V, Lu, W, Liu, W, Wu, Y, Naito, Y, Ramsden, Z, Veiga, C, Royle, G, Collins-Fekete, C, Fraioli, F, Ashford, P, Forster, M, Lee, S, Borg, E, Falzon, M, Papadatos-Pastos, D, Wilson, J, Ahmad, T, Procter, A, Ahmed, A, Taylor, M, Nair, A, Lawrence, D, Patrini, D, Navani, N, Thakrar, R, Janes, S, Martinoni Hoogenboom, E, Monk, F, Holding, J, Choudhary, J, Bhakhri, K, Scarci, M, Gorman, P, Khiroya, R, Stephens, R, Wong, Y, Kaplar, Z, Bandula, S, Hackshaw, A, Hacker, A, Sharp, A, Smith, S, Kaur Dhanda, H, Pilotti, C, Leslie, R, Grapa, A, Zhang, H, Abduljabbar, K, Pan, X, Yuan, Y, Chuter, D, Mackenzie, M, Chee, S, Alzetani, A, Cave, J, Richards, J, De Sousa, P, Jordan, S, Rice, A, Raubenheimer, H, Bhayani, H, Ambrose, L, Devaraj, A, Chavan, H, Begum, S, Buderi, S, Kaniu, D, Malima, M, Booth, S, Nicholson, A, Fernandes, N, Shah, P, Proli, C, Hewish, M, Danson, S, Shackcloth, M, Robinson, L, Russell, P, Blyth, K, Kidd, A, Dick, C, Le Quesne, J, Kirk, A, Asif, M, Bilancia, R, Kostoulas, N, Thomas, M, Hynds, R, Kanu, N, Zaccaria, S, Gronroos, E, Swanton, C, Hobor S., Al Bakir M., Hiley C. T., Skrzypski M., Frankell A. M., Bakker B., Watkins T. B. K., Markovets A., Dry J. R., Brown A. P., van der Aart J., van den Bos H., Spierings D., Oukrif D., Novelli M., Chakrabarti T., Rabinowitz A. H., Ait Hassou L., Litiere S., Kerr D. L., Tan L., Kelly G., Moore D. A., Renshaw M. J., Venkatesan S., Hill W., Huebner A., Martinez-Ruiz C., Black J. R. M., Wu W., Angelova M., McGranahan N., Downward J., Chmielecki J., Barrett C., Litchfield K., Chew S. K., Blakely C. M., de Bruin E. C., Foijer F., Vousden K. H., Bivona T. G., Lester J. F., Bajaj A., Nakas A., Sodha-Ramdeen A., Tufail M., Scotland M., Boyles R., Rathinam S., Wilson C., Marrone D., Dulloo S., Fennell D. A., Matharu G., Shaw J. A., Boleti E., Cheyne H., Khalil M., Richardson S., Cruickshank T., Price G., Kerr K. M., Benafif S., French J., Gilbert K., Naidu B., Patel A. J., Osman A., Enstone C., Langman G., Shackleford H., Djearaman M., Kadiri S., Middleton G., Leek A., Hodgkinson J. D., Totton N., Montero A., Smith E., Fontaine E., Granato F., Paiva-Correia A., Novasio J., Rammohan K., Joseph L., Bishop P., Shah R., Moss S., Joshi V., Crosbie P. A. J., Brown K. D., Carter M., Chaturvedi A., Oliveira P., Lindsay C. R., Blackhall F. H., Krebs M. G., Summers Y., Clipson A., Tugwood J., Kerr A., Rothwell D. G., Dive C., Aerts H. J. W. L., Schwarz R. F., Kaufmann T. L., Wilson G. A., Rosenthal R., Van Loo P., Birkbak N. J., Szallasi Z., Kisistok J., Sokac M., Salgado R., Diossy M., Demeulemeester J., Bunkum A., Dwornik A., Magness A., Rowan A. J., Karamani A., Toncheva A., Chain B., Castignani C., Bailey C., Abbosh C., Puttick C., Weeden C. E., Lee C., Richard C., Naceur-Lombardelli C., Pearce D. R., Karagianni D., Biswas D., Levi D., Larose Cadieux E., Lim E. L., Colliver E., Nye E., Galvez-Cancino F., Gimeno-Valiente F., Kassiotis G., Stavrou G., Mastrokalos G. -T., Lowe H. L., Matos I. G., Noorani I., Goldman J., Reading J. L., Rane J. K., Nicod J., Hartley J. A., Peggs K. S., Enfield K. S. S., Selvaraju K., Thol K., Ng K. W., Chen K., Dijkstra K., Grigoriadis K., Thakkar K., Ensell L., Shah M., Litovchenko M., Jamal-Hanjani M., Werner Sunderland M., Huska M. R., Hill M. S., Dietzen M., Leung M. M., Escudero M., Tanic M., Sivakumar M., Chervova O., Lucas O., Pich O., Al-Sawaf O., Prymas P., Hobson P., Pawlik P., Stone R. K., Bentham R., Vendramin R., Saghafinia S., Gamble S., Veeriah S., Ung S. K. A., Quezada S. A., Vanloo S., Hessey S., Ward S., Harries S., Boeing S., Beck S., Bola S. K., Karasaki T., Denner T., Marafioti T., Jones T. P., Spanswick V., Barbe V., Lu W. -T., Liu W. K., Wu Y., Naito Y., Ramsden Z., Veiga C., Royle G., Collins-Fekete C. -A., Fraioli F., Ashford P., Forster M. D., Lee S. M., Borg E., Falzon M., Papadatos-Pastos D., Wilson J., Ahmad T., Procter A. J., Ahmed A., Taylor M. N., Nair A., Lawrence D., Patrini D., Navani N., Thakrar R. M., Janes S. M., Martinoni Hoogenboom E., Monk F., Holding J. W., Choudhary J., Bhakhri K., Scarci M., Gorman P., Khiroya R., Stephens R. C. M., Wong Y. N. S., Kaplar Z., Bandula S., Hackshaw A., Hacker A. -M., Sharp A., Smith S., Kaur Dhanda H., Pilotti C., Leslie R., Grapa A., Zhang H., AbdulJabbar K., Pan X., Yuan Y., Chuter D., MacKenzie M., Chee S., Alzetani A., Cave J., Richards J., Lim E., De Sousa P., Jordan S., Rice A., Raubenheimer H., Bhayani H., Ambrose L., Devaraj A., Chavan H., Begum S., Buderi S. I., Kaniu D., Malima M., Booth S., Nicholson A. G., Fernandes N., Shah P., Proli C., Hewish M., Danson S., Shackcloth M. J., Robinson L., Russell P., Blyth K. G., Kidd A., Dick C., Le Quesne J., Kirk A., Asif M., Bilancia R., Kostoulas N., Thomas M., Hynds R. E., Kanu N., Zaccaria S., Gronroos E., and Swanton C.

Abstract

The phenomenon of mixed/heterogenous treatment responses to cancer therapies within an individual patient presents a challenging clinical scenario. Furthermore, the molecular basis of mixed intra-patient tumor responses remains unclear. Here, we show that patients with metastatic lung adenocarcinoma harbouring co-mutations of EGFR and TP53, are more likely to have mixed intra-patient tumor responses to EGFR tyrosine kinase inhibition (TKI), compared to those with an EGFR mutation alone. The combined presence of whole genome doubling (WGD) and TP53 co-mutations leads to increased genome instability and genomic copy number aberrations in genes implicated in EGFR TKI resistance. Using mouse models and an in vitro isogenic p53-mutant model system, we provide evidence that WGD provides diverse routes to drug resistance by increasing the probability of acquiring copy-number gains or losses relative to non-WGD cells. These data provide a molecular basis for mixed tumor responses to targeted therapy, within an individual patient, with implications for therapeutic strategies.

Published
2024

21. The leptonic widths of high $\psi$-resonances in unitary coupled-channel model

Author

Badalian, A. M. and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

The leptonic widths of high $\psi$-resonances are calculated in a coupled-channel model with unitary inelasticity, where analytical expressions for mixing angles between $(n+1)\,^3S_1$ and $n\,^3D_1$ states and probabilities $Z_i$ of the $c\bar c$ component are derived. Since these factors depend on energy (mass), different values of mixing angles $\theta(\psi(4040))=27.7^\circ$ and $\theta(\psi(4160))=29.5^\circ$, $Z_1\,(\psi(4040))=0.76$, and $Z_2\,(\psi(4160))=0.62$ are obtained. It gives the leptonic widths $\Gamma_{ee}(\psi(4040))=Z_1\, 1.17=0.89$~keV, $\Gamma_{ee}(\psi(4160))=Z_2\, 0.76=0.47$~keV in good agreement with experiment. For $\psi(4415)$ the leptonic width $\Gamma_{ee}(\psi(4415))=~0.55$~keV is calculated, while for the missing resonance $\psi(4510)$ we predict $M(\psi(4500))=(4515\pm 5)$~MeV and $\Gamma_{ee}(\psi(4510)) \cong 0.50$~keV., Comment: 10 pages, 6 references corrected, some new material added

Published
2017
Full Text
View/download PDF

23. The radial Regge trajectories and leptonic widths of the isovector mesons

Author

Badalian, A. M. and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

It is shown that two physical phenomena are important for high excitations: (i) the screening of the universal gluon-exchange potential and (ii) the flattening of the confining potential owing to creation of quark loops, and both effects are determined quantitatively. Taking the first effect into account, we predict the masses of the ground states with $l=0,1,2$ in agreement with experiment. The flattening effect ensures the observed linear behaviour of the radial Regge trajectories $M^2(n)=m_0^2 + n_r \mu^2$ GeV$^2$, where the slope $\mu^2$ is very sensitive to the parameter $\gamma$, which determines the weakening of the string tension $\sigma(r)$ at large distances. For the $\rho$-trajectory the linear behaviour starts with $n_r=1$ and the values $\mu^2=1.40(2)$~GeV$^2$ for $\gamma=0.40$ and $\mu^2=1.34(1)$~GeV$^2$ for $\gamma=0.45$ are obtained. For the excited states the leptonic widths: $\Gamma_{\rm ee}(\rho(775))=7.0(3)$~keV, $\Gamma_{\rm ee}(\rho(1450))=1.7(1)$~keV, $\Gamma_{\rm ee}(\rho(1900))=1.0(1)$~keV, $\Gamma_{\rm ee}(\rho(2150))=0.7(1)$~keV, and $\Gamma_{\rm ee}(1\,{}^3D_1)=0.26(5)$~keV are calculated, if these states are considered as purely $q\bar q$ states. The width $\Gamma_{\rm ee}(\rho(1700))$ increases if $\rho(1700)$ is mixed with the $2\,{}^3S_1$ state, giving for a mixing angle $\theta=21^\circ$ almost equal widths: $\Gamma_{\rm ee}(\rho(1700))=0.75(6)$~keV and $\Gamma_{\rm ee}(1450)=1.0(1)$~keV., Comment: 12 pages

Published
2016
Full Text
View/download PDF

24. Twenty Years of Lyme Borreliosis in the Netherlands: Temporal Trends in Seroprevalence and Risk Factors.

Author

Hoeve-Bakker, B. J. A., Berg, Oda E. van den, Doppenberg, H. S., Klis, Fiona R. M. van der, Wijngaard, Cees C. van den, Kluytmans, Jan A. J. W., Thijsen, Steven F. T., and Kerkhof, Karen

Subjects
LYME disease, GENERAL practitioners, CONSCIOUSNESS raising, TICK-borne diseases, BORRELIA burgdorferi
Abstract

Lyme borreliosis (LB) is not notifiable in many European countries, and the patchwork of surveillance strategies in Europe perpetuates knowledge gaps. In the Netherlands, LB incidence has been estimated from recurring general practitioner surveys since the 1990s. To complement the incidence data, this study aimed to estimate the prevalence of antibodies against Borrelia burgdorferi sensu lato in the general population of the Netherlands in 1995/1996, identify risk factors for seropositivity, and compare these findings to data from 2016/2017 to identify temporal trends. Sera from participants (n = 8041, aged 0–80 years) in a cross-sectional nationwide surveillance study were assessed for the presence of antibodies against B. burgdorferi s.l., using a screening ELISA and immunoblot confirmation. Risk factors associated with seropositivity were evaluated using multivariable analysis. A significant difference in weighted seroprevalence was observed between 1995/1996 (2.8%) and 2016/2017 (4.3%). In both cohorts, the seroprevalence was significantly higher among men than among women, and increased with age and tick bite frequency. The upward trend in age-specific seropositivity in individuals over 50 was steeper in 2016/2017 than in 1995/1996, possibly due to improved fitness among contemporary elderly, allowing increased outdoor activities. This study highlights significant trends in the seroprevalence of B. burgdorferi s.l. antibodies in the general population of the Netherlands over 20 years. The doubling of seroprevalence underscores the increasing burden of LB, and the importance of continued surveillance. Targeted interventions, particularly for elderly populations, may help raise awareness to the risks of tick bites and reduce the growing disease burden and societal costs associated with LB. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

25. The $c\bar c$ interaction above threshold and the radiative decay $X(3872)\rightarrow J/\psi\gamma$

Author

Badalian, A. M., Simonov, Yu. A., and Bakker, B. L. G

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

Radiative decays of $X(3872)$ are studied in single-channel approximation (SCA) and in the coupled-channel (CC) approach, where the decay channels $D\bar D^*$ are described with the string breaking mechanism. In SCA the transition rate $\tilde{\Gamma}_2=\Gamma(2\,{}^3P_1 \rightarrow \psi\gamma)=71.8$~keV and large $\tilde{\Gamma}_1=\Gamma(2\,{}^3P_1\rightarrow J/\psi\gamma)=85.4$~keV are obtained, giving for their ratio the value $\tilde{R_{\psi\gamma}}=\frac{\tilde{\Gamma}_2}{\tilde{\Gamma}_1}=0.84$. In the CC approach three factors are shown to be equally important. First, the admixture of the $1\,{}^3P_1$ component in the normalized wave function of $X(3872)$ due to the CC effects. Its weight $c_{\rm X}(E_{\rm R})=0.200\pm 0.015$ is calculated. Secondly, the use of the multipole function $g(r)$ instead of $r$ in the overlap integrals, determining the partial widths. Thirdly, the choice of the gluon-exchange interaction for $X(3872)$, as well as for other states above threshold. If for $X(3872)$ the gluon-exchange potential is taken the same as for low-lying charmonium states, then in the CC approach $\Gamma_1= \Gamma(X(3872)\rightarrow J/\psi\gamma) \sim 3$~keV is very small, giving the large ratio $R_{\psi\gamma}=\frac{\mathcal{B}(X(3872)\rightarrow \psi(2S)\gamma)}{\mathcal{B}(X(3872)\rightarrow J/\psi\gamma)}\gg 1.0$. Arguments are presented why the gluon-exchange interaction may be suppressed for $X(3872)$ and in this case $\Gamma_1=42.7$~keV, $\Gamma_2= 70.5$~keV, and $R_{\psi\gamma}=1.65$ are predicted for the minimal value $c_{\rm X}({\rm min})=0.185$, while for the maximal value $c_{\rm X}=0.215$ we obtained $\Gamma_1=30.8$~keV, $\Gamma_2=73.2$~keV, and $R_{\psi\gamma}=2.38$, which agrees with the LHCb data., Comment: 12 pages, no figures

Published
2015
Full Text
View/download PDF

27. Evaluation of different standard and modified two-tier testing strategies for the laboratory diagnosis of lyme borreliosis in a European setting

Author

Hoeve-Bakker, B. J.A., Kerkhof, K., Heron, M., Thijsen, S. F.T., van Gorkom, T., Hoeve-Bakker, B. J.A., Kerkhof, K., Heron, M., Thijsen, S. F.T., and van Gorkom, T.

Abstract

Background: Diagnosis of Lyme borreliosis (LB) relies on clinical symptoms and detection of Borrelia-specific antibodies. Guidelines recommend a two-tier testing (TTT) strategy for disseminated LB: serological screening with a sensitive enzyme immunoassay (EIA) and confirmation with a specific immunoblot. Searching for the most sensitive and specific approach, this retrospective study evaluated standard (STTT) and modified (MTTT) strategies using a well-defined study population. Methods: Cases included patients with active Lyme neuroborreliosis (LNB; n = 29) or Lyme arthritis (LA; n = 17). Controls comprised patients treated for LNB (n = 36) or LA (n = 8), healthy individuals who were either untreated (n = 75) or treated for LB (n = 15) in the past, and patients with potentially cross-reactive diseases (n = 16). Sera were subjected to three EIAs and two immunoblots. Reactive screening results were confirmed by immunoblot (STTT) or EIA (MTTT). Solitary IgM results in the screening assay and effects of antibiotic treatment on isotype-specific seropositivity rates were also assessed. Results: Sensitivities of STTT strategies ranged from 90%–97% for LNB and were 100% for LA. MTTT strategies were 100% sensitive. Specificities ranged from 89%–95% for STTT and from 88%–93% for MTTT strategies. Differences between STTT and MTTT strategies were not statistically significant. Solitary IgM reactivity was common among controls. Antibiotic treatment significantly reduced IgM/IgG positivity for LNB patients; for LA patients, a decline was only observed for IgM. Conclusion: In conclusion, MTTT strategies showed a slightly higher sensitivity and similar specificity compared to STTT strategies. Since EIAs are more time- and cost-efficient, MTTT strategies seem more favorable for clinical use. IgG testing enhances specificity with minimal sensitivity loss.

Published
2024

28. Twenty Years of Lyme Borreliosis in the Netherlands:Temporal Trends in Seroprevalence and Risk Factors

Author

Hoeve-Bakker, B. J.A., Berg, Oda E.van den, Doppenberg, H. S., Klis, Fiona R.M.van der, Wijngaard, Cees C.van den, Kluytmans, Jan A.J.W., Thijsen, Steven F.T., Kerkhof, Karen, Hoeve-Bakker, B. J.A., Berg, Oda E.van den, Doppenberg, H. S., Klis, Fiona R.M.van der, Wijngaard, Cees C.van den, Kluytmans, Jan A.J.W., Thijsen, Steven F.T., and Kerkhof, Karen

Abstract

Lyme borreliosis (LB) is not notifiable in many European countries, and the patchwork of surveillance strategies in Europe perpetuates knowledge gaps. In the Netherlands, LB incidence has been estimated from recurring general practitioner surveys since the 1990s. To complement the incidence data, this study aimed to estimate the prevalence of antibodies against Borrelia burgdorferi sensu lato in the general population of the Netherlands in 1995/1996, identify risk factors for seropositivity, and compare these findings to data from 2016/2017 to identify temporal trends. Sera from participants (n = 8041, aged 0–80 years) in a cross-sectional nationwide surveillance study were assessed for the presence of antibodies against B. burgdorferi s.l., using a screening ELISA and immunoblot confirmation. Risk factors associated with seropositivity were evaluated using multivariable analysis. A significant difference in weighted seroprevalence was observed between 1995/1996 (2.8%) and 2016/2017 (4.3%). In both cohorts, the seroprevalence was significantly higher among men than among women, and increased with age and tick bite frequency. The upward trend in age-specific seropositivity in individuals over 50 was steeper in 2016/2017 than in 1995/1996, possibly due to improved fitness among contemporary elderly, allowing increased outdoor activities. This study highlights significant trends in the seroprevalence of B. burgdorferi s.l. antibodies in the general population of the Netherlands over 20 years. The doubling of seroprevalence underscores the increasing burden of LB, and the importance of continued surveillance. Targeted interventions, particularly for elderly populations, may help raise awareness to the risks of tick bites and reduce the growing disease burden and societal costs associated with LB.

Published
2024

29. Artificial intelligence for automated detection of congenital brain anomalies in the first trimester:the Rotterdam Periconception Cohort

Author

Zijta, M., Bastiaansen, W., Steegers, E., Wijnen, R. M., Steegers-Theunissen, R. P., Klein, S., de Bakker, B. S., Rousian, M., Zijta, M., Bastiaansen, W., Steegers, E., Wijnen, R. M., Steegers-Theunissen, R. P., Klein, S., de Bakker, B. S., and Rousian, M.

Abstract

Here, we showed the first steps towards automatic detection of brain anomalies in first trimester pregnancies using 3D ultrasound images. The next step is to evaluate if the abnormal features correspond with the brain anomalies. In the future, we will extend this algorithm towards a broader age range and towards all anatomical structures to enable automated congenital anomaly screening during the first trimester.

Published
2024

31. Light-Front Quantum Chromodynamics: A framework for the analysis of hadron physics

Author

Bakker, B. L. G., Bassetto, A., Brodsky, S. J., Broniowski, W., Dalley, S., Frederico, T., Glazek, S. D., Hiller, J. R., Ji, C. -R., Karmanov, V., Kulshreshtha, D., Mathiot, J. -F., Melnitchouk, W., Miller, G. A., Papavassiliou, J., Polyzou, W. N., Stefanis, N. G., Vary, J. P., Ilderton, A., and Heinzl, T.

Subjects
High Energy Physics - Phenomenology, Nuclear Theory
Abstract

An outstanding goal of physics is to find solutions that describe hadrons in the theory of strong interactions, Quantum Chromodynamics (QCD). For this goal, the light-front Hamiltonian formulation of QCD (LFQCD) is a complementary approach to the well-established lattice gauge method. LFQCD offers access to the hadrons' nonperturbative quark and gluon amplitudes, which are directly testable in experiments at existing and future facilities. We present an overview of the promises and challenges of LFQCD in the context of unsolved issues in QCD that require broadened and accelerated investigation. We identify specific goals of this approach and address its quantifiable uncertainties., Comment: White Paper of International Light Cone Advisory Committee

Published
2013
Full Text
View/download PDF

32. The vector coupling $\alpha_{\rm V}(r)$ and the scales $r_0,r_1$ from the bottomonium spectrum

Author

Badalian, A. M. and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment, High Energy Physics - Lattice
Abstract

We study the universal static potential $V_{\rm st}(r)$ and the force, which are fully determined by two fundamental parameters: the string tension $\sigma=0.18\pm 0.02$ GeV$^2$ and the QCD constants $\Lambda_{\bar{\rm MS}}(n_f)$, taken from pQCD, while the infrared (IR) regulator $M_{\rm B}$ is taken from the background perturbation theory and expressed via the string tension. The vector couplings $\alpha_{\rm V}(r)$ in the static potential and $\alpha_{\rm F}(r)$ in the static force, as well as the characteristic scales, $r_1(n_f=3)$ and $r_0(n_f=3)$, are calculated and compared to lattice data. The result $r_0\Lambda_{\bar{\rm MS}}(n_f=3)=0.77\pm 0.03$, which agrees with the lattice data, is obtained for $M_{\rm B}=(1.15\pm 0.02)$ GeV. However, better agreement with the bottomonium spectrum is reached for a smaller $\Lambda_{\bar{\rm MS}}(n_f=3)=(325\pm 15)$ MeV and the frozen value of $\alpha_V=0.57\pm 0.02$. The mass splittings $\bar M(1D)-\bar M(1P)$ and $\bar M(2P)-\bar M(1P)$ are shown to be sensitive to the IR regulator used. The masses $M(1\,^3D_3)=10169(2)$ MeV and $M(1\,^3D_1)=10155(3)$ MeV are predicted., Comment: 21 pages, 5 figures, revtex4

Published
2013

33. Dominant spin-orbit effects in radiative decays {$\Upsilon(3S\rightarrow \gamma\chi_{bJ}(1P))$}}

Author

Badalian, A. M. and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology
Abstract

We show that there are two reasons why the partial width for the transition $\Gamma_1(\Upsilon(3S)\rightarrow \gamma\chi_{b1}(1P))$ is suppressed. Firstly, the spin-averaged matrix element (m.e.) $\bar{I(3S|r|1P_J)}$ is small, being equal to 0.023 GeV$^{-1}$ in our relativistic calculations. Secondly, the spin-orbit splittings produce relatively large contributions, giving $I(3S|r|1P_2)=0.066$ GeV$^{-1}$, while due to large cancellation the m.e. $I(3S|r|1P_1)=-0.020$ GeV$^{-1}$ is small and negative; at the same time the magnitude of $I(3S|r|1P_0)=-0.063$ GeV$^{-1}$ is relatively large. These m.e. give rise to the partial widths: $\Gamma_2(\Upsilon(3S)\rightarrow \gamma\chi_{b2}(1P))=212$ eV, $\Gamma_0(\Upsilon(3S)\rightarrow \gamma\chi_{b0}(1P))=54$ eV, which are in good agreement with the CLEO and BaBar data, and also to $\Gamma_1(\Upsilon(3S)\rightarrow \gamma\chi_{b1}(1P))=13$ eV, which satisfies the BaBar limit, $\Gamma_1(exp.) < 22$ eV., Comment: 8 pages

Published
2012
Full Text
View/download PDF

34. The ratio of decay widths of X(3872) to $ \psi^{\prime}\gamma $ and $ J/\psi\gamma$ as a test of the X(3872) dynamical structure

Author

Badalian, A. M., Orlovsky, V. D., Simonov, Yu. A., and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment, Nuclear Theory
Abstract

Radiative decays of X(3872) with $J^{PC}=1^{++}$ are studied in the coupled-channel approach, where the $c\bar c$ states are described by relativistic string Hamiltonian, while for the decay channels $DD^*$ a string breaking mechanism is used. Within this method a sharp peak and correct mass shift of the $2 {}^3P_1$ charmonium state just to the $D^0D^{*0}$ threshold was already obtained for a prescribed channel coupling to the $DD^*$ decay channels. For the same value of coupling the normalized wave function (w.f.) of X(3872) acquires admixture of the $1 {}^3P_1$ component with the w.f. fraction $c_1=0.153 (\theta=8.8^\circ$), which increases the transition rate $\Gamma(X(3872)\rightarrow J/\psi\gamma)$ up to 50-70 keV, making the ratio $R=\frac{\mathcal{B}(X(3872)\rightarrow \psi^{\prime}\gamma)}{\mathcal{B}(X(3872)\rightarrow J/\psi \gamma)}=0.8\pm 0.20 (th)$ significantly smaller, as compared to $R\simeq 5$ for X(3872) as a purely $2 {}^3P_1$ state., Comment: 14 pages,2 Tables

Published
2012
Full Text
View/download PDF

35. Higher excitations of the $D$ and $D_s$ mesons

Author

Badalian, A. M. and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

The masses of higher $D(nL)$ and $D_s(nL)$ excitations are shown to decrease due to the string contribution, originating from the rotation of the QCD string itself: it lowers the masses by 45 MeV for $L=2 (n=1)$ and by 65 MeV for $L=3 (n=1)$. An additional decrease $\sim 100$ MeV takes place if the current mass of the light (strange) quark is used in a relativistic model. For $D_s(1\,{}^3D_3)$ and $D_s(2P_1^H)$ the calculated masses agree with the experimental values for $D_s(2860)$ and $D_s(3040)$, and the masses of $D(2\,{}^1S_0)$, $D(2\,{}^3S_1)$, $D(1\,{}^3D_3)$, and $D(1D_2)$ are in agreement with the new BaBar data. For the yet undiscovered resonances we predict the masses $M(D(2\,{}^3P_2))=2965$ MeV, $M(D(2\,{}^3P_0))=2880$ MeV, $M(D(1\,{}^3F_4))=3030$ MeV, and $M(D_s(1\,{}^3F_2))=3090$ MeV. We show that for $L=2,3$ the states with $j_q=l+1/2$ and $j_q=l-1/2$ ($J=l$) are almost completely unmixed ($\phi\simeq -1^\circ$), which implies that the mixing angles $\theta$ between the states with S=1 and S=0 ($J=L$) are $\theta\approx 40^\circ$ for L=2 and $\approx 42^\circ$ for L=3., Comment: 22 pages, no figures, 4 tables Two references and corresponding discussion added

Published
2011
Full Text
View/download PDF

36. The Hyperfine Splittings in Heavy-Light Mesons and Quarkonia

Author

Badalian, A. M., Bakker, B. L. G., and Danilkin, I. V.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

Hyperfine splittings (HFS) are calculated within the Field Correlator Method, taking into account relativistic corrections. The HFS in bottomonium and the $B_q$ (q=n,s) mesons are shown to be in full agreement with experiment if a universal coupling $\alpha_{HF}=0.310$ is taken in perturbative spin-spin potential. It gives $M(B^*)-M(B)=45.7(3)$ MeV, $M(B_s^*)-M(B_s)=46.7(3)$ MeV ($n_f=4$), while in bottomonium $\Delta_{HF}(b\bar b)=M(\Upsilon(9460))-M(\eta_b(1S))=63.4$ MeV for $n_f=4$ and 71.1 MeV for $n_f=5$ are obtained; just latter agrees with recent BaBar data. For unobserved excited states we predict $M(\Upsilon(2S))-M(\eta_b(2S))=36(2)$ MeV, $M(\Upsilon(3S))-M(\eta(3S))=28(2)$ MeV, and also $M(B_c^*)=6334(4)$ MeV, $M(B_c(2S))=6868(4)$ MeV, $M(B_c^*(2S))=6905(4)$ MeV. The mass splittings between $D(2^3S_1)-D(2^1S_0)$, $D_s(2^3S_1)-D_s(2^1S_0)$ are predicted to be $\sim 70$ MeV, which are significantly smaller than in several other studies., Comment: 13 pages

Published
2010
Full Text
View/download PDF

37. The Hyperfine Splittings in Bottomonium and the $B_q (q=n,s,c)$ Mesons

Author

Badalian, A. M., Bakker, B. L. G., and Danilkin, I. V.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

A universal description of the hyperfine splittings (HFS) in bottomonium and the $B_q (q=n,s,c)$ mesons is obtained with a universal strong coupling constant $\alpha_s(\mu)=0.305(2)$ in a spin-spin potential. Other characteristics are calculated within the Field Correlator Method, taking the freezing value of the strong coupling independent of $n_f$. The HFS $M(B^*)- M(B)=45.3(3)$ MeV, $M(B_s^*) - M(B_s)=46.5(3)$ MeV are obtained in full agreement with experiment both for $n_f=3$ and $n_f=4$. In bottomonium, $M(\Upsilon(9460))- M(\eta_b)=70.0(4)$ MeV for $n_f=5$ agrees with the BaBar data, while a smaller HFS, equal to 64(1) MeV, is obtained for $n_f=4$. We predict HFS $M(\Upsilon(2S))-M(\eta_b(2S))=36(1)$ MeV, $M(\Upsilon(3S))- M(\eta(3S))=27(1)$ MeV, and $M(B_c^*) - M(B_c)= 57.5(10)$ MeV, which gives $M(B_c^*)=6334(1)$ MeV, $M(B_c(2 {}^1S_0))=6865(5)$ MeV, and $M(B_c^*(2S {}^3S_1))=6901(5)$ MeV., Comment: 5 pages revtex4

Published
2009
Full Text
View/download PDF

38. Lung adenocarcinoma promotion by air pollutants

Author

Hill, W, Lim, E, Weeden, C, Lee, C, Augustine, M, Chen, K, Kuan, F, Marongiu, F, Evans, E, Moore, D, Rodrigues, F, Pich, O, Bakker, B, Cha, H, Myers, R, van Maldegem, F, Boumelha, J, Veeriah, S, Rowan, A, Naceur-Lombardelli, C, Karasaki, T, Sivakumar, M, De, S, Caswell, D, Nagano, A, Black, J, Martinez-Ruiz, C, Ryu, M, Huff, R, Li, S, Fave, M, Magness, A, Suarez-Bonnet, A, Priestnall, S, Luchtenborg, M, Lavelle, K, Pethick, J, Hardy, S, Mcronald, F, Lin, M, Troccoli, C, Ghosh, M, Miller, Y, Merrick, D, Keith, R, Al Bakir, M, Bailey, C, Hill, M, Saal, L, Chen, Y, George, A, Abbosh, C, Kanu, N, Lee, S, Mcgranahan, N, Berg, C, Sasieni, P, Houlston, R, Turnbull, C, Lam, S, Awadalla, P, Gronroos, E, Downward, J, Jacks, T, Carlsten, C, Malanchi, I, Hackshaw, A, Litchfield, K, Lester, J, Bajaj, A, Nakas, A, Sodha-Ramdeen, A, Ang, K, Tufail, M, Chowdhry, M, Scotland, M, Boyles, R, Rathinam, S, Wilson, C, Marrone, D, Dulloo, S, Fennell, D, Matharu, G, Shaw, J, Riley, J, Primrose, L, Boleti, E, Cheyne, H, Khalil, M, Richardson, S, Cruickshank, T, Price, G, Kerr, K, Benafif, S, Gilbert, K, Naidu, B, Patel, A, Osman, A, Lacson, C, Langman, G, Shackleford, H, Djearaman, M, Kadiri, S, Middleton, G, Leek, A, Hodgkinson, J, Totten, N, Montero, A, Smith, E, Fontaine, E, Granato, F, Doran, H, Novasio, J, Rammohan, K, Joseph, L, Bishop, P, Shah, R, Moss, S, Joshi, V, Crosbie, P, Gomes, F, Brown, K, Carter, M, Chaturvedi, A, Priest, L, Oliveira, P, Lindsay, C, Blackhall, F, Krebs, M, Summers, Y, Clipson, A, Tugwood, J, Kerr, A, Rothwell, D, Kilgour, E, Dive, C, Aerts, H, Schwarz, R, Kaufmann, T, Wilson, G, Rosenthal, R, Van Loo, P, Birkbak, N, Szallasi, Z, Kisistok, J, Sokac, M, Salgado, R, Diossy, M, Demeulemeester, J, Bunkum, A, Stewart, A, Frankell, A, Karamani, A, Toncheva, A, Huebner, A, Chain, B, Campbell, B, Castignani, C, Puttick, C, Richard, C, Hiley, C, Pearce, D, Karagianni, D, Biswas, D, Levi, D, Hoxha, E, Cadieux, E, Colliver, E, Nye, E, Galvez-Cancino, F, Athanasopoulou, F, Gimeno-Valiente, F, Kassiotis, G, Stavrou, G, Mastrokalos, G, Zhai, H, Lowe, H, Matos, I, Goldman, J, Reading, J, Herrero, J, Rane, J, Nicod, J, Lam, J, Hartley, J, Peggs, K, Enfield, K, Selvaraju, K, Thol, K, Ng, K, Dijkstra, K, Grigoriadis, K, Thakkar, K, Ensell, L, Shah, M, Duran, M, Litovchenko, M, Sunderland, M, Dietzen, M, Leung, M, Escudero, M, Angelova, M, Tanic, M, Chervova, O, Lucas, O, Al-Sawaf, O, Prymas, P, Hobson, P, Pawlik, P, Stone, R, Bentham, R, Hynds, R, Vendramin, R, Saghafinia, S, Lopez, S, Gamble, S, Ung, S, Quezada, S, Vanloo, S, Zaccaria, S, Hessey, S, Ward, S, Boeing, S, Beck, S, Bola, S, Denner, T, Marafioti, T, Mourikis, T, Watkins, T, Spanswick, V, Barbe, V, Lu, W, Liu, W, Wu, Y, Naito, Y, Ramsden, Z, Veiga, C, Royle, G, Collins-Fekete, C, Fraioli, F, Ashford, P, Clark, T, Forster, M, Borg, E, Falzon, M, Papadatos-Pastos, D, Wilson, J, Ahmad, T, Procter, A, Ahmed, A, Taylor, M, Nair, A, Lawrence, D, Patrini, D, Navani, N, Thakrar, R, Janes, S, Hoogenboom, E, Monk, F, Holding, J, Choudhary, J, Bhakhri, K, Scarci, M, Hayward, M, Panagiotopoulos, N, Gorman, P, Khiroya, R, Stephens, R, Wong, Y, Bandula, S, Sharp, A, Smith, S, Gower, N, Dhanda, H, Chan, K, Pilotti, C, Leslie, R, Grapa, A, Zhang, H, Abduljabbar, K, Pan, X, Yuan, Y, Chuter, D, Mackenzie, M, Chee, S, Alzetani, A, Cave, J, Scarlett, L, Richards, J, Ingram, P, Austin, S, De Sousa, P, Jordan, S, Rice, A, Raubenheimer, H, Bhayani, H, Ambrose, L, Devaraj, A, Chavan, H, Begum, S, Buderi, S, Kaniu, D, Malima, M, Booth, S, Nicholson, A, Fernandes, N, Shah, P, Proli, C, Hewish, M, Danson, S, Shackcloth, M, Robinson, L, Russell, P, Blyth, K, Dick, C, Le Quesne, J, Kirk, A, Asif, M, Bilancia, R, Kostoulas, N, Thomas, M, Degregori, J, Jamal-Hanjani, M, Swanton, C, Hill W., Lim E. L., Weeden C. E., Lee C., Augustine M., Chen K., Kuan F. -C., Marongiu F., Evans E. J., Moore D. A., Rodrigues F. S., Pich O., Bakker B., Cha H., Myers R., van Maldegem F., Boumelha J., Veeriah S., Rowan A., Naceur-Lombardelli C., Karasaki T., Sivakumar M., De S., Caswell D. R., Nagano A., Black J. R. M., Martinez-Ruiz C., Ryu M. H., Huff R. D., Li S., Fave M. -J., Magness A., Suarez-Bonnet A., Priestnall S. L., Luchtenborg M., Lavelle K., Pethick J., Hardy S., McRonald F. E., Lin M. -H., Troccoli C. I., Ghosh M., Miller Y. E., Merrick D. T., Keith R. L., Al Bakir M., Bailey C., Hill M. S., Saal L. H., Chen Y., George A. M., Abbosh C., Kanu N., Lee S. -H., McGranahan N., Berg C. D., Sasieni P., Houlston R., Turnbull C., Lam S., Awadalla P., Gronroos E., Downward J., Jacks T., Carlsten C., Malanchi I., Hackshaw A., Litchfield K., Lester J. F., Bajaj A., Nakas A., Sodha-Ramdeen A., Ang K., Tufail M., Chowdhry M. F., Scotland M., Boyles R., Rathinam S., Wilson C., Marrone D., Dulloo S., Fennell D. A., Matharu G., Shaw J. A., Riley J., Primrose L., Boleti E., Cheyne H., Khalil M., Richardson S., Cruickshank T., Price G., Kerr K. M., Benafif S., Gilbert K., Naidu B., Patel A. J., Osman A., Lacson C., Langman G., Shackleford H., Djearaman M., Kadiri S., Middleton G., Leek A., Hodgkinson J. D., Totten N., Montero A., Smith E., Fontaine E., Granato F., Doran H., Novasio J., Rammohan K., Joseph L., Bishop P., Shah R., Moss S., Joshi V., Crosbie P., Gomes F., Brown K., Carter M., Chaturvedi A., Priest L., Oliveira P., Lindsay C. R., Blackhall F. H., Krebs M. G., Summers Y., Clipson A., Tugwood J., Kerr A., Rothwell D. G., Kilgour E., Dive C., Aerts H. J. W. L., Schwarz R. F., Kaufmann T. L., Wilson G. A., Rosenthal R., Van Loo P., Birkbak N. J., Szallasi Z., Kisistok J., Sokac M., Salgado R., Diossy M., Demeulemeester J., Bunkum A., Stewart A., Frankell A. M., Karamani A., Toncheva A., Huebner A., Chain B., Campbell B. B., Castignani C., Puttick C., Richard C., Hiley C. T., Pearce D. R., Karagianni D., Biswas D., Levi D., Hoxha E., Cadieux E. L., Colliver E., Nye E., Galvez-Cancino F., Athanasopoulou F., Gimeno-Valiente F., Kassiotis G., Stavrou G., Mastrokalos G., Zhai H., Lowe H. L., Matos I. G., Goldman J., Reading J. L., Herrero J., Rane J. K., Nicod J., Lam J. M., Hartley J. A., Peggs K. S., Enfield K. S. S., Selvaraju K., Thol K., Ng K. W., Dijkstra K., Grigoriadis K., Thakkar K., Ensell L., Shah M., Duran M. V., Litovchenko M., Sunderland M. W., Dietzen M., Leung M., Escudero M., Angelova M., Tanic M., Chervova O., Lucas O., Al-Sawaf O., Prymas P., Hobson P., Pawlik P., Stone R. K., Bentham R., Hynds R. E., Vendramin R., Saghafinia S., Lopez S., Gamble S., Ung S. K. A., Quezada S. A., Vanloo S., Zaccaria S., Hessey S., Ward S., Boeing S., Beck S., Bola S. K., Denner T., Marafioti T., Mourikis T. P., Watkins T. B. K., Spanswick V., Barbe V., Lu W. -T., Liu W. K., Wu Y., Naito Y., Ramsden Z., Veiga C., Royle G., Collins-Fekete C. -A., Fraioli F., Ashford P., Clark T., Forster M. D., Lee S. M., Borg E., Falzon M., Papadatos-Pastos D., Wilson J., Ahmad T., Procter A. J., Ahmed A., Taylor M. N., Nair A., Lawrence D., Patrini D., Navani N., Thakrar R. M., Janes S. M., Hoogenboom E. M., Monk F., Holding J. W., Choudhary J., Bhakhri K., Scarci M., Hayward M., Panagiotopoulos N., Gorman P., Khiroya R., Stephens R. C. M., Wong Y. N. S., Bandula S., Sharp A., Smith S., Gower N., Dhanda H. K., Chan K., Pilotti C., Leslie R., Grapa A., Zhang H., AbdulJabbar K., Pan X., Yuan Y., Chuter D., MacKenzie M., Chee S., Alzetani A., Cave J., Scarlett L., Richards J., Ingram P., Austin S., Lim E., De Sousa P., Jordan S., Rice A., Raubenheimer H., Bhayani H., Ambrose L., Devaraj A., Chavan H., Begum S., Buderi S. I., Kaniu D., Malima M., Booth S., Nicholson A. G., Fernandes N., Shah P., Proli C., Hewish M., Danson S., Shackcloth M. J., Robinson L., Russell P., Blyth K. G., Dick C., Le Quesne J., Kirk A., Asif M., Bilancia R., Kostoulas N., Thomas M., DeGregori J., Jamal-Hanjani M., Swanton C., Hill, W, Lim, E, Weeden, C, Lee, C, Augustine, M, Chen, K, Kuan, F, Marongiu, F, Evans, E, Moore, D, Rodrigues, F, Pich, O, Bakker, B, Cha, H, Myers, R, van Maldegem, F, Boumelha, J, Veeriah, S, Rowan, A, Naceur-Lombardelli, C, Karasaki, T, Sivakumar, M, De, S, Caswell, D, Nagano, A, Black, J, Martinez-Ruiz, C, Ryu, M, Huff, R, Li, S, Fave, M, Magness, A, Suarez-Bonnet, A, Priestnall, S, Luchtenborg, M, Lavelle, K, Pethick, J, Hardy, S, Mcronald, F, Lin, M, Troccoli, C, Ghosh, M, Miller, Y, Merrick, D, Keith, R, Al Bakir, M, Bailey, C, Hill, M, Saal, L, Chen, Y, George, A, Abbosh, C, Kanu, N, Lee, S, Mcgranahan, N, Berg, C, Sasieni, P, Houlston, R, Turnbull, C, Lam, S, Awadalla, P, Gronroos, E, Downward, J, Jacks, T, Carlsten, C, Malanchi, I, Hackshaw, A, Litchfield, K, Lester, J, Bajaj, A, Nakas, A, Sodha-Ramdeen, A, Ang, K, Tufail, M, Chowdhry, M, Scotland, M, Boyles, R, Rathinam, S, Wilson, C, Marrone, D, Dulloo, S, Fennell, D, Matharu, G, Shaw, J, Riley, J, Primrose, L, Boleti, E, Cheyne, H, Khalil, M, Richardson, S, Cruickshank, T, Price, G, Kerr, K, Benafif, S, Gilbert, K, Naidu, B, Patel, A, Osman, A, Lacson, C, Langman, G, Shackleford, H, Djearaman, M, Kadiri, S, Middleton, G, Leek, A, Hodgkinson, J, Totten, N, Montero, A, Smith, E, Fontaine, E, Granato, F, Doran, H, Novasio, J, Rammohan, K, Joseph, L, Bishop, P, Shah, R, Moss, S, Joshi, V, Crosbie, P, Gomes, F, Brown, K, Carter, M, Chaturvedi, A, Priest, L, Oliveira, P, Lindsay, C, Blackhall, F, Krebs, M, Summers, Y, Clipson, A, Tugwood, J, Kerr, A, Rothwell, D, Kilgour, E, Dive, C, Aerts, H, Schwarz, R, Kaufmann, T, Wilson, G, Rosenthal, R, Van Loo, P, Birkbak, N, Szallasi, Z, Kisistok, J, Sokac, M, Salgado, R, Diossy, M, Demeulemeester, J, Bunkum, A, Stewart, A, Frankell, A, Karamani, A, Toncheva, A, Huebner, A, Chain, B, Campbell, B, Castignani, C, Puttick, C, Richard, C, Hiley, C, Pearce, D, Karagianni, D, Biswas, D, Levi, D, Hoxha, E, Cadieux, E, Colliver, E, Nye, E, Galvez-Cancino, F, Athanasopoulou, F, Gimeno-Valiente, F, Kassiotis, G, Stavrou, G, Mastrokalos, G, Zhai, H, Lowe, H, Matos, I, Goldman, J, Reading, J, Herrero, J, Rane, J, Nicod, J, Lam, J, Hartley, J, Peggs, K, Enfield, K, Selvaraju, K, Thol, K, Ng, K, Dijkstra, K, Grigoriadis, K, Thakkar, K, Ensell, L, Shah, M, Duran, M, Litovchenko, M, Sunderland, M, Dietzen, M, Leung, M, Escudero, M, Angelova, M, Tanic, M, Chervova, O, Lucas, O, Al-Sawaf, O, Prymas, P, Hobson, P, Pawlik, P, Stone, R, Bentham, R, Hynds, R, Vendramin, R, Saghafinia, S, Lopez, S, Gamble, S, Ung, S, Quezada, S, Vanloo, S, Zaccaria, S, Hessey, S, Ward, S, Boeing, S, Beck, S, Bola, S, Denner, T, Marafioti, T, Mourikis, T, Watkins, T, Spanswick, V, Barbe, V, Lu, W, Liu, W, Wu, Y, Naito, Y, Ramsden, Z, Veiga, C, Royle, G, Collins-Fekete, C, Fraioli, F, Ashford, P, Clark, T, Forster, M, Borg, E, Falzon, M, Papadatos-Pastos, D, Wilson, J, Ahmad, T, Procter, A, Ahmed, A, Taylor, M, Nair, A, Lawrence, D, Patrini, D, Navani, N, Thakrar, R, Janes, S, Hoogenboom, E, Monk, F, Holding, J, Choudhary, J, Bhakhri, K, Scarci, M, Hayward, M, Panagiotopoulos, N, Gorman, P, Khiroya, R, Stephens, R, Wong, Y, Bandula, S, Sharp, A, Smith, S, Gower, N, Dhanda, H, Chan, K, Pilotti, C, Leslie, R, Grapa, A, Zhang, H, Abduljabbar, K, Pan, X, Yuan, Y, Chuter, D, Mackenzie, M, Chee, S, Alzetani, A, Cave, J, Scarlett, L, Richards, J, Ingram, P, Austin, S, De Sousa, P, Jordan, S, Rice, A, Raubenheimer, H, Bhayani, H, Ambrose, L, Devaraj, A, Chavan, H, Begum, S, Buderi, S, Kaniu, D, Malima, M, Booth, S, Nicholson, A, Fernandes, N, Shah, P, Proli, C, Hewish, M, Danson, S, Shackcloth, M, Robinson, L, Russell, P, Blyth, K, Dick, C, Le Quesne, J, Kirk, A, Asif, M, Bilancia, R, Kostoulas, N, Thomas, M, Degregori, J, Jamal-Hanjani, M, Swanton, C, Hill W., Lim E. L., Weeden C. E., Lee C., Augustine M., Chen K., Kuan F. -C., Marongiu F., Evans E. J., Moore D. A., Rodrigues F. S., Pich O., Bakker B., Cha H., Myers R., van Maldegem F., Boumelha J., Veeriah S., Rowan A., Naceur-Lombardelli C., Karasaki T., Sivakumar M., De S., Caswell D. R., Nagano A., Black J. R. M., Martinez-Ruiz C., Ryu M. H., Huff R. D., Li S., Fave M. -J., Magness A., Suarez-Bonnet A., Priestnall S. L., Luchtenborg M., Lavelle K., Pethick J., Hardy S., McRonald F. E., Lin M. -H., Troccoli C. I., Ghosh M., Miller Y. E., Merrick D. T., Keith R. L., Al Bakir M., Bailey C., Hill M. S., Saal L. H., Chen Y., George A. M., Abbosh C., Kanu N., Lee S. -H., McGranahan N., Berg C. D., Sasieni P., Houlston R., Turnbull C., Lam S., Awadalla P., Gronroos E., Downward J., Jacks T., Carlsten C., Malanchi I., Hackshaw A., Litchfield K., Lester J. F., Bajaj A., Nakas A., Sodha-Ramdeen A., Ang K., Tufail M., Chowdhry M. F., Scotland M., Boyles R., Rathinam S., Wilson C., Marrone D., Dulloo S., Fennell D. A., Matharu G., Shaw J. A., Riley J., Primrose L., Boleti E., Cheyne H., Khalil M., Richardson S., Cruickshank T., Price G., Kerr K. M., Benafif S., Gilbert K., Naidu B., Patel A. J., Osman A., Lacson C., Langman G., Shackleford H., Djearaman M., Kadiri S., Middleton G., Leek A., Hodgkinson J. D., Totten N., Montero A., Smith E., Fontaine E., Granato F., Doran H., Novasio J., Rammohan K., Joseph L., Bishop P., Shah R., Moss S., Joshi V., Crosbie P., Gomes F., Brown K., Carter M., Chaturvedi A., Priest L., Oliveira P., Lindsay C. R., Blackhall F. H., Krebs M. G., Summers Y., Clipson A., Tugwood J., Kerr A., Rothwell D. G., Kilgour E., Dive C., Aerts H. J. W. L., Schwarz R. F., Kaufmann T. L., Wilson G. A., Rosenthal R., Van Loo P., Birkbak N. J., Szallasi Z., Kisistok J., Sokac M., Salgado R., Diossy M., Demeulemeester J., Bunkum A., Stewart A., Frankell A. M., Karamani A., Toncheva A., Huebner A., Chain B., Campbell B. B., Castignani C., Puttick C., Richard C., Hiley C. T., Pearce D. R., Karagianni D., Biswas D., Levi D., Hoxha E., Cadieux E. L., Colliver E., Nye E., Galvez-Cancino F., Athanasopoulou F., Gimeno-Valiente F., Kassiotis G., Stavrou G., Mastrokalos G., Zhai H., Lowe H. L., Matos I. G., Goldman J., Reading J. L., Herrero J., Rane J. K., Nicod J., Lam J. M., Hartley J. A., Peggs K. S., Enfield K. S. S., Selvaraju K., Thol K., Ng K. W., Dijkstra K., Grigoriadis K., Thakkar K., Ensell L., Shah M., Duran M. V., Litovchenko M., Sunderland M. W., Dietzen M., Leung M., Escudero M., Angelova M., Tanic M., Chervova O., Lucas O., Al-Sawaf O., Prymas P., Hobson P., Pawlik P., Stone R. K., Bentham R., Hynds R. E., Vendramin R., Saghafinia S., Lopez S., Gamble S., Ung S. K. A., Quezada S. A., Vanloo S., Zaccaria S., Hessey S., Ward S., Boeing S., Beck S., Bola S. K., Denner T., Marafioti T., Mourikis T. P., Watkins T. B. K., Spanswick V., Barbe V., Lu W. -T., Liu W. K., Wu Y., Naito Y., Ramsden Z., Veiga C., Royle G., Collins-Fekete C. -A., Fraioli F., Ashford P., Clark T., Forster M. D., Lee S. M., Borg E., Falzon M., Papadatos-Pastos D., Wilson J., Ahmad T., Procter A. J., Ahmed A., Taylor M. N., Nair A., Lawrence D., Patrini D., Navani N., Thakrar R. M., Janes S. M., Hoogenboom E. M., Monk F., Holding J. W., Choudhary J., Bhakhri K., Scarci M., Hayward M., Panagiotopoulos N., Gorman P., Khiroya R., Stephens R. C. M., Wong Y. N. S., Bandula S., Sharp A., Smith S., Gower N., Dhanda H. K., Chan K., Pilotti C., Leslie R., Grapa A., Zhang H., AbdulJabbar K., Pan X., Yuan Y., Chuter D., MacKenzie M., Chee S., Alzetani A., Cave J., Scarlett L., Richards J., Ingram P., Austin S., Lim E., De Sousa P., Jordan S., Rice A., Raubenheimer H., Bhayani H., Ambrose L., Devaraj A., Chavan H., Begum S., Buderi S. I., Kaniu D., Malima M., Booth S., Nicholson A. G., Fernandes N., Shah P., Proli C., Hewish M., Danson S., Shackcloth M. J., Robinson L., Russell P., Blyth K. G., Dick C., Le Quesne J., Kirk A., Asif M., Bilancia R., Kostoulas N., Thomas M., DeGregori J., Jamal-Hanjani M., and Swanton C.

Published
2023

39. Dielectron widths of the S-, D-vector bottomonium states

Author

Badalian, A. M., Bakker, B. L. G., and Danilkin, I. V.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

The dielectron widths of $\Upsilon(nS) (n=1,...,7)$ and vector decay constants are calculated using the Relativistic String Hamiltonian with a universal interaction. For $\Upsilon(nS) (n=1,2,3)$ the dielectron widths and their ratios are obtained in full agreement with the latest CLEO data. For $\Upsilon(10580)$ and $\Upsilon(11020)$ a good agreement with experiment is reached only if the 4S--3D mixing (with a mixing angle $\theta=27^\circ\pm 4^\circ$) and 6S--5D mixing (with $\theta=40^\circ\pm 5^\circ$) are taken into account. The possibility to observe higher "mixed $D$-wave" resonances, $\tilde\Upsilon(n {}^3D_1)$ with $n=3,4,5$ is discussed. In particular, $\tilde\Upsilon(\approx 11120)$, originating from the pure $5 {}^3D_1$ state, can acquire a rather large dielectron width, $\sim 130$ eV, so that this resonance may become manifest in the $e^+e^-$ experiments. On the contrary, the widths of pure $D$-wave states are very small, $\Gamma_{ee}(n{}^3 D_1) \leq 2$ eV., Comment: 13 pages, no figures

Published
2009
Full Text
View/download PDF

41. On the possibility to observe higher $n^3D_1$ bottomonium states in the $e^+e^-$ processes

Author

Badalian, A. M., Bakker, B. L. G., and Danilkin, I. V.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

The possibility to observe new bottomonium states with $J^{PC}= 1^{--}$ in the region $10.7-11.1$ GeV is discussed. The analysis of the di-electron widths shows that the $(n+1)^3S_1$ and $n^3D_1$ states ($n\geq 3$) may be mixed with a rather large mixing angle, $\theta\sim30^\circ$ and this effect provides the correct values of $\Gamma_{ee}(\Upsilon(10580))$ and $\Gamma_{ee}(\Upsilon(11020))$. On the other hand, the $S-D$ mixing gives rise to an increase by two orders of magnitude of the di-electron widths of the mixed $\tilde\Upsilon(n^3D_1$) resonances ($n=3,4,5$), which originate from pure $D-$wave states. The value $\Gamma_{ee}(\tilde\Upsilon(3D))=0.095^{+0.028}_{-0.025}$ keV is obtained, being only $\sim 3$ times smaller than the di-electron width of $\Upsilon(10580)$, while $\Gamma_{ee}(\tilde\Upsilon(5D))\sim 135$ eV appears to be close to $\Gamma_{ee}(\Upsilon(11020))$ and therefore this resonance may become manifest in the $e^+e^-$ experiments. The mass differences between $M(nD)$ and $M((n+1)S) (n=4,5)$ are shown to be rather small, $50\pm 10$ MeV., Comment: 5 pages, no figures

Published
2008
Full Text
View/download PDF

42. Monopoles in lattice Electroweak theory

Author

Bakker, B. L. G., Veselov, A. I., and Zubkov, M. A.

Subjects
High Energy Physics - Lattice
Abstract

There exist several types of monopole - like topological defects in Electroweak theory. We investigate properties of these objects using lattice numerical methods. The intimate connection between them and the dynamics of the theory is established. We find that the density of Nambu monopoles cannot be predicted by the choice of the initial parameters of Electroweak theory and should be considered as the new external parameter of the theory. We also investigate the difference between the versions of Electroweak theory with the gauge groups $SU(2)\otimes U(1)$ and $SU(2)\otimes U(1)/Z_2$. We do not detect any difference at $\alpha \sim {1/128}$. However, such a difference appears in the unphysical region of large coupling constant $\alpha > 0.1$., Comment: to appear in Proceedings of SPMTP08

Published
2008

43. The $\mathbf{S}-\mathbf{D}$ mixing and di-electron widths of higher charmonium $\mathbf{1^{--}}$ states

Author

Badalian, A. M., Bakker, B. L. G., and Danilkin, I. V.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

The di-electron widths of $\psi(4040)$, $\psi(4160)$, and $\psi(4415)$, and their ratios are shown to be in good agreement with experiment, if in all cases the $S-D$ mixing with a large mixing angle $\theta\approx 34^\circ$ is taken. Arguments are presented why continuum states give small contributions to the wave functions at the origin. We find that the Y(4360) resonance, considered as a pure $3 {}^3D_1$ state, would have very small di-electron width, $\Gamma_{ee}(Y(4360))=0.060$ keV. On the contrary, for large mixing between the $4 {}^3S_1$ and $3 {}^3D_1$ states with the mixing angle $\theta=34.8^\circ$, $\Gamma_{ee}(\psi(4415))=0.57$ keV coincides with the experimental number, while a second physical resonance, probably Y(4360), has also a rather large $\Gamma_{ee} (Y(\sim 4400))=0.61$ keV. For the higher resonance Y(4660), considered as a pure $5 {}^3S_1$ state, we predict the di-electron width $\Gamma_{ee}(Y(4660))=0.70$ keV, but it becomes significantly smaller, namely 0.31 keV, if the mixing angle between the $5 {}^3S_1$ and $4 {}^3D_1$ states $\theta=34^\circ$. The mass and di-electron width of the $6 {}^3S_1$ charmonium state are calculated., Comment: 19 pages, no figures

Published
2008
Full Text
View/download PDF

44. Lattice study of monopoles in the Electroweak theory

Author

Bakker, B. L. G., Veselov, A. I., and Zubkov, M. A.

Subjects
High Energy Physics - Lattice, High Energy Physics - Phenomenology
Abstract

We investigated numerically properties of Nambu monopoles in lattice Electroweak theory at realistic values of $\alpha$ and $\theta_W$. Our choice of parameters of lattice Lagrangian corresponds to large values of the Higgs boson mass $M_H > 2 M_W$. We find that the density of Nambu monopoles cannot be predicted by the choice of the initial parameters of Electroweak theory and should be considered as the new external parameter of the theory. We also investigate the difference between the versions of Electroweak theory with the gauge groups $SU(2)\otimes U(1)$ and $SU(2)\otimes U(1)/Z_2$. We do not detect any difference at $\alpha \sim {1/128}$. However, such a difference appears in the strong coupling region and is related to the properties of monopoles constructed of the hypercharge field., Comment: poster presented at LATTICE 2007

Published
2007

45. Nambu monopoles in lattice Electroweak theory

Author

Bakker, B. L. G., Veselov, A. I., and Zubkov, M. A.

Subjects
High Energy Physics - Lattice, High Energy Physics - Phenomenology
Abstract

We considered the lattice electroweak theory at realistic values of $\alpha$ and $\theta_W$ and for large values of the Higgs mass. We investigated numerically the properties of topological objects that are identified with quantum Nambu monopoles. We have found that the action density near the Nambu monopole worldlines exceeds the density averaged over the lattice in the physical region of the phase diagram. Moreover, their percolation probability is found to be an order parameter for the transition between the symmetric and the broken phases. Therefore, these monopoles indeed appear as real physical objects. However, we have found that their density on the lattice increases with increasing ultraviolet cutoff. Thus we conclude, that the conventional lattice electroweak theory is not able to predict the density of Nambu monopoles. This means that the description of Nambu monopole physics based on the lattice Weinberg - Salam model with finite ultraviolet cutoff is incomplete. We expect that the correct description may be obtained only within the lattice theory that involves the description of TeV - scale physics., Comment: LATEX

Published
2007
Full Text
View/download PDF

46. The running mass $m_s$ at low scalefrom the heavy-light meson decay constants

Author

Badalian, A. M. and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

It is shown that a 25(20)% difference between the decay constants $f_{D_s}(f_{B_s})$ and $f_D(f_B)$ occurs due to large differences in the pole masses of the $s$ and $d(u)$ quarks. The values $\eta_D =f_{D_s}/f_D\approx 1.23(15)$, recently observed in the CLEO experiment, and $\eta_B=f_{B_s}/f_B\approx 1.20$, obtained in unquenched lattice QCD, can be reached only if the running mass $m_s$ at low scale is $m_s(\sim 0.5 $ GeV)$= 170 - 200$ MeV. Our results follow from the analytical expression for the pseudoscalar decay constant $f_{\rm P}$ based on the path-integral representation of the meson Green's function., Comment: 6 pages, no figures; revtex4

Published
2007
Full Text
View/download PDF

47. Decay constants of the heavy-light mesons from the field correlator method

Author

Badalian, A. M., Bakker, B. L. G., and Simonov, Yu. A.

Subjects
High Energy Physics - Phenomenology
Abstract

Meson Green's functions and decay constants $f_{\Gamma}$ in different channels $\Gamma$ are calculated using the Field Correlator Method. Both, spectrum and $f_\Gamma$, appear to be expressed only through universal constants: the string tension $\sigma$, $\alpha_s$, and the pole quark masses. For the $S$-wave states the calculated masses agree with the experimental numbers within $\pm 5$ MeV. For the $D$ and $D_s$ mesons the values of $f_{\rm P} (1S)$ are equal to 210(10) and 260(10) MeV, respectively, and their ratio $f_{D_s}/f_D$=1.24(3) agrees with recent CLEO experiment. The values $f_{\rm P}(1S)=182, 216, 438$ MeV are obtained for the $B$, $B_s$, and $B_c$ mesons with the ratio $f_{B_s}/f_B$=1.19(2) and $f_D/f_B$=1.14(2). The decay constants $f_{\rm P}(2S)$ for the first radial excitations as well as the decay constants $f_{\rm V}(1S)$ in the vector channel are also calculated. The difference of about 20% between $f_{D_s}$ and $f_D$, $f_{B_s}$ and $f_B$ directly follows from our analytical formulas., Comment: 37 pages, 10 tables, RevTeX4

Published
2007
Full Text
View/download PDF

48. Masses and decay constants of B_q mesons in the QCD string approach

Author

Badalian, A. M., Simonov, Yu. A., and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology
Abstract

The relativistic string Hamiltonian is used to calculate the masses and decay constants of $B_q$ mesons: they appear to be expressed through onlythree fundamental values: the string tension $\sigma $, $\alpha_s$, and the quark pole masses. The values $f_B =186 $ MeV, $f_{B_s}= 222$ MeV are calculated while $f_{B_c}$ depends on the $c$-quark pole mass used, namely $f_{B_c}=440 (424)$ MeV for $m_c =1.40 (1.35)$ GeV. For the $1P$ states we predict the spin-averaged masses: $\bar M(B_J)=5730$ MeV and $\bar M(B_{sJ})=5830$ MeV which are in good agreement with the recent data of the D0 and CDF Collaborations, at the same time owning to the string correction being by $\sim 50$ MeV smaller than in other calculations., Comment: 9 pages, ICHEP 2006

Published
2006
Full Text
View/download PDF

49. Masses of the \eta_c(nS) and \eta_b(nS) mesons

Author

Badalian, A. M. and Bakker, B. L. G.

Subjects
High Energy Physics - Phenomenology
Abstract

The hyperfine splittings in heavy quarkonia are studied using new experimental data on the di-electron widths. The smearing of the spin-spin interaction is taken into account, while the radius of smearing is fixed by the known $J/\psi-\eta_c(1S)$ and $\psi(2S)-\eta'_c(2S)$ splittings and appears to be small, $r_{ss} \approx 0.06$ fm. Nevertheless, even with such a small radius an essential suppression of the hyperfine splittings ($\sim 50%)$ is observed in bottomonium. For the $nS b\bar b$ states $(n=1,2,...6)$ the values we predict (in MeV) are 28, 12, 10, 6, 6, and 3, respectively. In single-channel approximation for the $3S$ and $4S$ charmonium states the splittings 16(2) MeV and 12(4) MeV are obtained., Comment: 13 pages, no figures

Published
2006
Full Text
View/download PDF

50. $Z_6$ symmetry, electroweak transition, and magnetic monopoles at high temperature

Author

Bakker, B. L. G., Veselov, A. I., and Zubkov, M. A.

Subjects
High Energy Physics - Lattice, High Energy Physics - Phenomenology
Abstract

We consider the lattice realization of the Standard Model with an additional $Z_6$ symmetry. Numerical simulations were performed on the asymmetric lattice, which corresponds to the finite temperature theory. Our choice of parameters corresponds to large Higgs masses ($M_H > 90$ Gev). The phase diagram was investigated and has been found to be different from that of the usual lattice realization of the Standard Model. It has been found, that the confinement-deconfinement phase transition lines for the SU(2) and SU(3) fields coincide. The transition line between Higgs and symmetric deconfinement parts of the phase diagram and the confinement-deconfinement transition line meet in a triple point. The transition between Higgs and symmetric parts of the phase diagram corresponds to the finite temperature electroweak transition/crossover. We see for the first time evidence that Nambu monopoles are condensed at $T>T_c$ while at $T

Published
2006
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results