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Title: Nuclear Dependence of the Transverse Single-Spin Asymmetry in the Production of Charged Hadrons at Forward Rapidity in Polarized p + p , p + Al , and p + Au Collisions at s N N = 200 GeV

Abstract

We report on the nuclear dependence of transverse single-spin asymmetries (TSSAs) in the production of positively charged hadrons in polarized p ↑ + p, p ↑ + Al , and p↑ + Au collisions at $$\sqrt{s}{ _{NN}}$$ = 200 GeV . The measurements have been performed at forward rapidity ( 1.4 < η < 2.4 ) over the range of transverse momentum ( 1.8 < p T < 7.0 G eV / c ) and Feynman x ( 0.1 < $$x_F$$ < 0.2 ). We observed positive asymmetries for positively charged hadrons in p ↑ + p collisions, and significantly reduced asymmetries in p ↑ + A collisions. These results reveal a nuclear dependence of TSSAs for charged-hadron production in a regime where perturbative techniques are applicable. These results provide new opportunities to use p ↑ + A collisions as a tool to investigate the rich phenomena behind TSSAs in hadronic collisions and to use TSSAs as a new handle in studying small-system collisions.

Authors:
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Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Org.:
PHENIX Collaboration
OSTI Identifier:
1562340
Alternate Identifier(s):
OSTI ID: 1563145
Report Number(s):
BNL-212114-2019-JAAM
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
SC0012704
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 123; Journal Issue: 12; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Aidala, C., Akiba, Y., Alfred, M., Andrieux, V., Apadula, N., Asano, H., Azmoun, B., Babintsev, V., Bandara, N. S., Barish, K. N., Bathe, S., Bazilevsky, A., Beaumier, M., Belmont, R., Berdnikov, A., Berdnikov, Y., Blau, D. S., Bok, J. S., Brooks, M. L., Bryslawskyj, J., Bumazhnov, V., Campbell, S., Canoa Roman, V., Cervantes, R., Chi, C. Y., Chiu, M., Choi, I. J., Choi, J. B., Citron, Z., Connors, M., Cronin, N., Csanád, M., Csörgő, T., Danley, T. W., Daugherity, M. S., David, G., DeBlasio, K., Dehmelt, K., Denisov, A., Deshpande, A., Desmond, E. J., Dion, A., Dixit, D., Do, J. H., Drees, A., Drees, K. A., Durham, J. M., Durum, A., Enokizono, A., En’yo, H., Esumi, S., Fadem, B., Fan, W., Feege, N., Fields, D. E., Finger, M., Finger, M., Fokin, S. L., Frantz, J. E., Franz, A., Frawley, A. D., Fukuda, Y., Gal, C., Gallus, P., Gamez, E. A., Garg, P., Ge, H., Giordano, F., Goto, Y., Grau, N., Greene, S. V., Grosse Perdekamp, M., Gunji, T., Guragain, H., Hachiya, T., Haggerty, J. S., Hahn, K. I., Hamagaki, H., Hamilton, H. F., Han, S. Y., Hanks, J., Hasegawa, S., Haseler, T. O. S., He, X., Hemmick, T. K., Hill, J. C., Hill, K., Hodges, A., Hollis, R. S., Homma, K., Hong, B., Hoshino, T., Hotvedt, N., Huang, J., Huang, S., Imai, K., Inaba, M., Iordanova, A., Isenhower, D., Ishimaru, S., Ivanishchev, D., Jacak, B. V., Jezghani, M., Ji, Z., Jiang, X., Johnson, B. M., Jouan, D., Jumper, D. S., Kang, J. H., Kapukchyan, D., Karthas, S., Kawall, D., Kazantsev, A. V., Khachatryan, V., Khanzadeev, A., Kim, C., Kim, E. -J., Kim, M., Kincses, D., Kistenev, E., Klatsky, J., Kline, P., Koblesky, T., Kotov, D., Kudo, S., Kurgyis, B., Kurita, K., Kwon, Y., Lajoie, J. G., Lebedev, A., Lee, S., Lee, S. H., Leitch, M. J., Leung, Y. H., Lewis, N. A., Li, X., Lim, S. H., Liu, M. X., Loggins, V. -R., Lökös, S., Lovasz, K., Lynch, D., Majoros, T., Makdisi, Y. I., Makek, M., Manko, V. I., Mannel, E., McCumber, M., McGaughey, P. L., McGlinchey, D., McKinney, C., Mendoza, M., Metzger, W. J., Mignerey, A. C., Milov, A., Mishra, D. K., Mitchell, J. T., Mitrankov, Iu., Mitsuka, G., Miyasaka, S., Mizuno, S., Montuenga, P., Moon, T., Morrison, D. P., Morrow, S. I., Murakami, T., Murata, J., Nagai, K., Nagashima, K., Nagashima, T., Nagle, J. L., Nagy, M. I., Nakagawa, I., Nakano, K., Nattrass, C., Nelson, S., Niida, T., Nishitani, R., Nouicer, R., Novák, T., Novitzky, N., Nyanin, A. S., O’Brien, E., Ogilvie, C. A., Orjuela Koop, J. D., Osborn, J. D., Oskarsson, A., Ottino, G. J., Ozawa, K., Pantuev, V., Papavassiliou, V., Park, J. S., Park, S., Pate, S. F., Patel, M., Peng, W., Perepelitsa, D. V., Perera, G. D. N., Peressounko, D. Yu., PerezLara, C. E., Perry, J., Petti, R., Phipps, M., Pinkenburg, C., Pisani, R. P., Pun, A., Purschke, M. L., Radzevich, P. V., Read, K. F., Reynolds, D., Riabov, V., Riabov, Y., Richford, D., Rinn, T., Rolnick, S. D., Rosati, M., Rowan, Z., Runchey, J., Safonov, A. S., Sakaguchi, T., Sako, H., Samsonov, V., Sarsour, M., Sato, S., Scarlett, C. Y., Schaefer, B., Schmoll, B. K., Sedgwick, K., Seidl, R., Sen, A., Seto, R., Sexton, A., Sharma, D., Shein, I., Shibata, T. -A., Shigaki, K., Shimomura, M., Shioya, T., Shukla, P., Sickles, A., Silva, C. L., Silvermyr, D., Singh, B. K., Singh, C. P., Singh, V., Skoby, M. J., Slunečka, M., Smith, K. L., Snowball, M., Soltz, R. A., Sondheim, W. E., Sorensen, S. P., Sourikova, I. V., Stankus, P. W., Stoll, S. P., Sugitate, T., Sukhanov, A., Sumita, T., Sun, J., Sun, Z., Suzuki, S., Sziklai, J., Tanida, K., Tannenbaum, M. J., Tarafdar, S., Taranenko, A., Tarnai, G., Tieulent, R., Timilsina, A., Todoroki, T., Tomášek, M., Towell, C. L., Towell, R. S., Tserruya, I., Ueda, Y., Ujvari, B., van Hecke, H. W., Velkovska, J., Virius, M., Vrba, V., Vukman, N., Wang, X. R., Wang, Z., Watanabe, Y. S., Wong, C. P., Woody, C. L., Xu, C., Xu, Q., Xue, L., Yalcin, S., Yamaguchi, Y. L., Yamamoto, H., Yanovich, A., Yoo, J. H., Yoon, I., Yu, H., Yushmanov, I. E., Zajc, W. A., Zelenski, A., Zhai, Y., Zharko, S., and Zou, L. Nuclear Dependence of the Transverse Single-Spin Asymmetry in the Production of Charged Hadrons at Forward Rapidity in Polarized p+p , p+Al , and p+Au Collisions at sNN=200GeV. United States: N. p., 2019. Web. doi:10.1103/PhysRevLett.123.122001.
Aidala, C., Akiba, Y., Alfred, M., Andrieux, V., Apadula, N., Asano, H., Azmoun, B., Babintsev, V., Bandara, N. S., Barish, K. N., Bathe, S., Bazilevsky, A., Beaumier, M., Belmont, R., Berdnikov, A., Berdnikov, Y., Blau, D. S., Bok, J. S., Brooks, M. L., Bryslawskyj, J., Bumazhnov, V., Campbell, S., Canoa Roman, V., Cervantes, R., Chi, C. Y., Chiu, M., Choi, I. J., Choi, J. B., Citron, Z., Connors, M., Cronin, N., Csanád, M., Csörgő, T., Danley, T. W., Daugherity, M. S., David, G., DeBlasio, K., Dehmelt, K., Denisov, A., Deshpande, A., Desmond, E. J., Dion, A., Dixit, D., Do, J. H., Drees, A., Drees, K. A., Durham, J. M., Durum, A., Enokizono, A., En’yo, H., Esumi, S., Fadem, B., Fan, W., Feege, N., Fields, D. E., Finger, M., Finger, M., Fokin, S. L., Frantz, J. E., Franz, A., Frawley, A. D., Fukuda, Y., Gal, C., Gallus, P., Gamez, E. A., Garg, P., Ge, H., Giordano, F., Goto, Y., Grau, N., Greene, S. V., Grosse Perdekamp, M., Gunji, T., Guragain, H., Hachiya, T., Haggerty, J. S., Hahn, K. I., Hamagaki, H., Hamilton, H. F., Han, S. Y., Hanks, J., Hasegawa, S., Haseler, T. O. S., He, X., Hemmick, T. K., Hill, J. C., Hill, K., Hodges, A., Hollis, R. S., Homma, K., Hong, B., Hoshino, T., Hotvedt, N., Huang, J., Huang, S., Imai, K., Inaba, M., Iordanova, A., Isenhower, D., Ishimaru, S., Ivanishchev, D., Jacak, B. V., Jezghani, M., Ji, Z., Jiang, X., Johnson, B. M., Jouan, D., Jumper, D. S., Kang, J. H., Kapukchyan, D., Karthas, S., Kawall, D., Kazantsev, A. V., Khachatryan, V., Khanzadeev, A., Kim, C., Kim, E. -J., Kim, M., Kincses, D., Kistenev, E., Klatsky, J., Kline, P., Koblesky, T., Kotov, D., Kudo, S., Kurgyis, B., Kurita, K., Kwon, Y., Lajoie, J. G., Lebedev, A., Lee, S., Lee, S. H., Leitch, M. J., Leung, Y. H., Lewis, N. A., Li, X., Lim, S. H., Liu, M. X., Loggins, V. -R., Lökös, S., Lovasz, K., Lynch, D., Majoros, T., Makdisi, Y. I., Makek, M., Manko, V. I., Mannel, E., McCumber, M., McGaughey, P. L., McGlinchey, D., McKinney, C., Mendoza, M., Metzger, W. J., Mignerey, A. C., Milov, A., Mishra, D. K., Mitchell, J. T., Mitrankov, Iu., Mitsuka, G., Miyasaka, S., Mizuno, S., Montuenga, P., Moon, T., Morrison, D. P., Morrow, S. I., Murakami, T., Murata, J., Nagai, K., Nagashima, K., Nagashima, T., Nagle, J. L., Nagy, M. I., Nakagawa, I., Nakano, K., Nattrass, C., Nelson, S., Niida, T., Nishitani, R., Nouicer, R., Novák, T., Novitzky, N., Nyanin, A. S., O’Brien, E., Ogilvie, C. A., Orjuela Koop, J. D., Osborn, J. D., Oskarsson, A., Ottino, G. J., Ozawa, K., Pantuev, V., Papavassiliou, V., Park, J. S., Park, S., Pate, S. F., Patel, M., Peng, W., Perepelitsa, D. V., Perera, G. D. N., Peressounko, D. Yu., PerezLara, C. E., Perry, J., Petti, R., Phipps, M., Pinkenburg, C., Pisani, R. P., Pun, A., Purschke, M. L., Radzevich, P. V., Read, K. F., Reynolds, D., Riabov, V., Riabov, Y., Richford, D., Rinn, T., Rolnick, S. D., Rosati, M., Rowan, Z., Runchey, J., Safonov, A. S., Sakaguchi, T., Sako, H., Samsonov, V., Sarsour, M., Sato, S., Scarlett, C. Y., Schaefer, B., Schmoll, B. K., Sedgwick, K., Seidl, R., Sen, A., Seto, R., Sexton, A., Sharma, D., Shein, I., Shibata, T. -A., Shigaki, K., Shimomura, M., Shioya, T., Shukla, P., Sickles, A., Silva, C. L., Silvermyr, D., Singh, B. K., Singh, C. P., Singh, V., Skoby, M. J., Slunečka, M., Smith, K. L., Snowball, M., Soltz, R. A., Sondheim, W. E., Sorensen, S. P., Sourikova, I. V., Stankus, P. W., Stoll, S. P., Sugitate, T., Sukhanov, A., Sumita, T., Sun, J., Sun, Z., Suzuki, S., Sziklai, J., Tanida, K., Tannenbaum, M. J., Tarafdar, S., Taranenko, A., Tarnai, G., Tieulent, R., Timilsina, A., Todoroki, T., Tomášek, M., Towell, C. L., Towell, R. S., Tserruya, I., Ueda, Y., Ujvari, B., van Hecke, H. W., Velkovska, J., Virius, M., Vrba, V., Vukman, N., Wang, X. R., Wang, Z., Watanabe, Y. S., Wong, C. P., Woody, C. L., Xu, C., Xu, Q., Xue, L., Yalcin, S., Yamaguchi, Y. L., Yamamoto, H., Yanovich, A., Yoo, J. H., Yoon, I., Yu, H., Yushmanov, I. E., Zajc, W. A., Zelenski, A., Zhai, Y., Zharko, S., & Zou, L. Nuclear Dependence of the Transverse Single-Spin Asymmetry in the Production of Charged Hadrons at Forward Rapidity in Polarized p+p , p+Al , and p+Au Collisions at sNN=200GeV. United States. doi:10.1103/PhysRevLett.123.122001.
Aidala, C., Akiba, Y., Alfred, M., Andrieux, V., Apadula, N., Asano, H., Azmoun, B., Babintsev, V., Bandara, N. S., Barish, K. N., Bathe, S., Bazilevsky, A., Beaumier, M., Belmont, R., Berdnikov, A., Berdnikov, Y., Blau, D. S., Bok, J. S., Brooks, M. L., Bryslawskyj, J., Bumazhnov, V., Campbell, S., Canoa Roman, V., Cervantes, R., Chi, C. Y., Chiu, M., Choi, I. J., Choi, J. B., Citron, Z., Connors, M., Cronin, N., Csanád, M., Csörgő, T., Danley, T. W., Daugherity, M. S., David, G., DeBlasio, K., Dehmelt, K., Denisov, A., Deshpande, A., Desmond, E. J., Dion, A., Dixit, D., Do, J. H., Drees, A., Drees, K. A., Durham, J. M., Durum, A., Enokizono, A., En’yo, H., Esumi, S., Fadem, B., Fan, W., Feege, N., Fields, D. E., Finger, M., Finger, M., Fokin, S. L., Frantz, J. E., Franz, A., Frawley, A. D., Fukuda, Y., Gal, C., Gallus, P., Gamez, E. A., Garg, P., Ge, H., Giordano, F., Goto, Y., Grau, N., Greene, S. V., Grosse Perdekamp, M., Gunji, T., Guragain, H., Hachiya, T., Haggerty, J. S., Hahn, K. I., Hamagaki, H., Hamilton, H. F., Han, S. Y., Hanks, J., Hasegawa, S., Haseler, T. O. S., He, X., Hemmick, T. K., Hill, J. C., Hill, K., Hodges, A., Hollis, R. S., Homma, K., Hong, B., Hoshino, T., Hotvedt, N., Huang, J., Huang, S., Imai, K., Inaba, M., Iordanova, A., Isenhower, D., Ishimaru, S., Ivanishchev, D., Jacak, B. V., Jezghani, M., Ji, Z., Jiang, X., Johnson, B. M., Jouan, D., Jumper, D. S., Kang, J. H., Kapukchyan, D., Karthas, S., Kawall, D., Kazantsev, A. V., Khachatryan, V., Khanzadeev, A., Kim, C., Kim, E. -J., Kim, M., Kincses, D., Kistenev, E., Klatsky, J., Kline, P., Koblesky, T., Kotov, D., Kudo, S., Kurgyis, B., Kurita, K., Kwon, Y., Lajoie, J. G., Lebedev, A., Lee, S., Lee, S. H., Leitch, M. J., Leung, Y. H., Lewis, N. A., Li, X., Lim, S. H., Liu, M. X., Loggins, V. -R., Lökös, S., Lovasz, K., Lynch, D., Majoros, T., Makdisi, Y. I., Makek, M., Manko, V. I., Mannel, E., McCumber, M., McGaughey, P. L., McGlinchey, D., McKinney, C., Mendoza, M., Metzger, W. J., Mignerey, A. C., Milov, A., Mishra, D. K., Mitchell, J. T., Mitrankov, Iu., Mitsuka, G., Miyasaka, S., Mizuno, S., Montuenga, P., Moon, T., Morrison, D. P., Morrow, S. I., Murakami, T., Murata, J., Nagai, K., Nagashima, K., Nagashima, T., Nagle, J. L., Nagy, M. I., Nakagawa, I., Nakano, K., Nattrass, C., Nelson, S., Niida, T., Nishitani, R., Nouicer, R., Novák, T., Novitzky, N., Nyanin, A. S., O’Brien, E., Ogilvie, C. A., Orjuela Koop, J. D., Osborn, J. D., Oskarsson, A., Ottino, G. J., Ozawa, K., Pantuev, V., Papavassiliou, V., Park, J. S., Park, S., Pate, S. F., Patel, M., Peng, W., Perepelitsa, D. V., Perera, G. D. N., Peressounko, D. Yu., PerezLara, C. E., Perry, J., Petti, R., Phipps, M., Pinkenburg, C., Pisani, R. P., Pun, A., Purschke, M. L., Radzevich, P. V., Read, K. F., Reynolds, D., Riabov, V., Riabov, Y., Richford, D., Rinn, T., Rolnick, S. D., Rosati, M., Rowan, Z., Runchey, J., Safonov, A. S., Sakaguchi, T., Sako, H., Samsonov, V., Sarsour, M., Sato, S., Scarlett, C. Y., Schaefer, B., Schmoll, B. K., Sedgwick, K., Seidl, R., Sen, A., Seto, R., Sexton, A., Sharma, D., Shein, I., Shibata, T. -A., Shigaki, K., Shimomura, M., Shioya, T., Shukla, P., Sickles, A., Silva, C. L., Silvermyr, D., Singh, B. K., Singh, C. P., Singh, V., Skoby, M. J., Slunečka, M., Smith, K. L., Snowball, M., Soltz, R. A., Sondheim, W. E., Sorensen, S. P., Sourikova, I. V., Stankus, P. W., Stoll, S. P., Sugitate, T., Sukhanov, A., Sumita, T., Sun, J., Sun, Z., Suzuki, S., Sziklai, J., Tanida, K., Tannenbaum, M. J., Tarafdar, S., Taranenko, A., Tarnai, G., Tieulent, R., Timilsina, A., Todoroki, T., Tomášek, M., Towell, C. L., Towell, R. S., Tserruya, I., Ueda, Y., Ujvari, B., van Hecke, H. W., Velkovska, J., Virius, M., Vrba, V., Vukman, N., Wang, X. R., Wang, Z., Watanabe, Y. S., Wong, C. P., Woody, C. L., Xu, C., Xu, Q., Xue, L., Yalcin, S., Yamaguchi, Y. L., Yamamoto, H., Yanovich, A., Yoo, J. H., Yoon, I., Yu, H., Yushmanov, I. E., Zajc, W. A., Zelenski, A., Zhai, Y., Zharko, S., and Zou, L. Sun . "Nuclear Dependence of the Transverse Single-Spin Asymmetry in the Production of Charged Hadrons at Forward Rapidity in Polarized p+p , p+Al , and p+Au Collisions at sNN=200GeV". United States. doi:10.1103/PhysRevLett.123.122001.
@article{osti_1562340,
title = {Nuclear Dependence of the Transverse Single-Spin Asymmetry in the Production of Charged Hadrons at Forward Rapidity in Polarized p+p , p+Al , and p+Au Collisions at sNN=200GeV},
author = {Aidala, C. and Akiba, Y. and Alfred, M. and Andrieux, V. and Apadula, N. and Asano, H. and Azmoun, B. and Babintsev, V. and Bandara, N. S. and Barish, K. N. and Bathe, S. and Bazilevsky, A. and Beaumier, M. and Belmont, R. and Berdnikov, A. and Berdnikov, Y. and Blau, D. S. and Bok, J. S. and Brooks, M. L. and Bryslawskyj, J. and Bumazhnov, V. and Campbell, S. and Canoa Roman, V. and Cervantes, R. and Chi, C. Y. and Chiu, M. and Choi, I. J. and Choi, J. B. and Citron, Z. and Connors, M. and Cronin, N. and Csanád, M. and Csörgő, T. and Danley, T. W. and Daugherity, M. S. and David, G. and DeBlasio, K. and Dehmelt, K. and Denisov, A. and Deshpande, A. and Desmond, E. J. and Dion, A. and Dixit, D. and Do, J. H. and Drees, A. and Drees, K. A. and Durham, J. M. and Durum, A. and Enokizono, A. and En’yo, H. and Esumi, S. and Fadem, B. and Fan, W. and Feege, N. and Fields, D. E. and Finger, M. and Finger, M. and Fokin, S. L. and Frantz, J. E. and Franz, A. and Frawley, A. D. and Fukuda, Y. and Gal, C. and Gallus, P. and Gamez, E. A. and Garg, P. and Ge, H. and Giordano, F. and Goto, Y. and Grau, N. and Greene, S. V. and Grosse Perdekamp, M. and Gunji, T. and Guragain, H. and Hachiya, T. and Haggerty, J. S. and Hahn, K. I. and Hamagaki, H. and Hamilton, H. F. and Han, S. Y. and Hanks, J. and Hasegawa, S. and Haseler, T. O. S. and He, X. and Hemmick, T. K. and Hill, J. C. and Hill, K. and Hodges, A. and Hollis, R. S. and Homma, K. and Hong, B. and Hoshino, T. and Hotvedt, N. and Huang, J. and Huang, S. and Imai, K. and Inaba, M. and Iordanova, A. and Isenhower, D. and Ishimaru, S. and Ivanishchev, D. and Jacak, B. V. and Jezghani, M. and Ji, Z. and Jiang, X. and Johnson, B. M. and Jouan, D. and Jumper, D. S. and Kang, J. H. and Kapukchyan, D. and Karthas, S. and Kawall, D. and Kazantsev, A. V. and Khachatryan, V. and Khanzadeev, A. and Kim, C. and Kim, E. -J. and Kim, M. and Kincses, D. and Kistenev, E. and Klatsky, J. and Kline, P. and Koblesky, T. and Kotov, D. and Kudo, S. and Kurgyis, B. and Kurita, K. and Kwon, Y. and Lajoie, J. G. and Lebedev, A. and Lee, S. and Lee, S. H. and Leitch, M. J. and Leung, Y. H. and Lewis, N. A. and Li, X. and Lim, S. H. and Liu, M. X. and Loggins, V. -R. and Lökös, S. and Lovasz, K. and Lynch, D. and Majoros, T. and Makdisi, Y. I. and Makek, M. and Manko, V. I. and Mannel, E. and McCumber, M. and McGaughey, P. L. and McGlinchey, D. and McKinney, C. and Mendoza, M. and Metzger, W. J. and Mignerey, A. C. and Milov, A. and Mishra, D. K. and Mitchell, J. T. and Mitrankov, Iu. and Mitsuka, G. and Miyasaka, S. and Mizuno, S. and Montuenga, P. and Moon, T. and Morrison, D. P. and Morrow, S. I. and Murakami, T. and Murata, J. and Nagai, K. and Nagashima, K. and Nagashima, T. and Nagle, J. L. and Nagy, M. I. and Nakagawa, I. and Nakano, K. and Nattrass, C. and Nelson, S. and Niida, T. and Nishitani, R. and Nouicer, R. and Novák, T. and Novitzky, N. and Nyanin, A. S. and O’Brien, E. and Ogilvie, C. A. and Orjuela Koop, J. D. and Osborn, J. D. and Oskarsson, A. and Ottino, G. J. and Ozawa, K. and Pantuev, V. and Papavassiliou, V. and Park, J. S. and Park, S. and Pate, S. F. and Patel, M. and Peng, W. and Perepelitsa, D. V. and Perera, G. D. N. and Peressounko, D. Yu. and PerezLara, C. E. and Perry, J. and Petti, R. and Phipps, M. and Pinkenburg, C. and Pisani, R. P. and Pun, A. and Purschke, M. L. and Radzevich, P. V. and Read, K. F. and Reynolds, D. and Riabov, V. and Riabov, Y. and Richford, D. and Rinn, T. and Rolnick, S. D. and Rosati, M. and Rowan, Z. and Runchey, J. and Safonov, A. S. and Sakaguchi, T. and Sako, H. and Samsonov, V. and Sarsour, M. and Sato, S. and Scarlett, C. Y. and Schaefer, B. and Schmoll, B. K. and Sedgwick, K. and Seidl, R. and Sen, A. and Seto, R. and Sexton, A. and Sharma, D. and Shein, I. and Shibata, T. -A. and Shigaki, K. and Shimomura, M. and Shioya, T. and Shukla, P. and Sickles, A. and Silva, C. L. and Silvermyr, D. and Singh, B. K. and Singh, C. P. and Singh, V. and Skoby, M. J. and Slunečka, M. and Smith, K. L. and Snowball, M. and Soltz, R. A. and Sondheim, W. E. and Sorensen, S. P. and Sourikova, I. V. and Stankus, P. W. and Stoll, S. P. and Sugitate, T. and Sukhanov, A. and Sumita, T. and Sun, J. and Sun, Z. and Suzuki, S. and Sziklai, J. and Tanida, K. and Tannenbaum, M. J. and Tarafdar, S. and Taranenko, A. and Tarnai, G. and Tieulent, R. and Timilsina, A. and Todoroki, T. and Tomášek, M. and Towell, C. L. and Towell, R. S. and Tserruya, I. and Ueda, Y. and Ujvari, B. and van Hecke, H. W. and Velkovska, J. and Virius, M. and Vrba, V. and Vukman, N. and Wang, X. R. and Wang, Z. and Watanabe, Y. S. and Wong, C. P. and Woody, C. L. and Xu, C. and Xu, Q. and Xue, L. and Yalcin, S. and Yamaguchi, Y. L. and Yamamoto, H. and Yanovich, A. and Yoo, J. H. and Yoon, I. and Yu, H. and Yushmanov, I. E. and Zajc, W. A. and Zelenski, A. and Zhai, Y. and Zharko, S. and Zou, L.},
abstractNote = {We report on the nuclear dependence of transverse single-spin asymmetries (TSSAs) in the production of positively charged hadrons in polarized p ↑ + p, p ↑ + Al , and p↑ + Au collisions at $\sqrt{s}{ _{NN}}$ = 200 GeV . The measurements have been performed at forward rapidity ( 1.4 < η < 2.4 ) over the range of transverse momentum ( 1.8 < p T < 7.0 G eV / c ) and Feynman x ( 0.1 < $x_F$ < 0.2 ). We observed positive asymmetries for positively charged hadrons in p ↑ + p collisions, and significantly reduced asymmetries in p ↑ + A collisions. These results reveal a nuclear dependence of TSSAs for charged-hadron production in a regime where perturbative techniques are applicable. These results provide new opportunities to use p ↑ + A collisions as a tool to investigate the rich phenomena behind TSSAs in hadronic collisions and to use TSSAs as a new handle in studying small-system collisions.},
doi = {10.1103/PhysRevLett.123.122001},
journal = {Physical Review Letters},
number = 12,
volume = 123,
place = {United States},
year = {2019},
month = {9}
}

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DOI: 10.1103/PhysRevLett.123.122001

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