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Interactions of Bc Meson in Qgp

Thesis Info

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Author

Sultana, Shaheen

Program

PhD

Institute

University of the Punjab

City

Lahore

Province

Punjab

Country

Pakistan

Thesis Completing Year

2016

Thesis Completion Status

Completed

Subject

Energy Physics

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/13556/1/Shaheen_Sultana_High_Energy_Physics_HSR_2016_UoP_Punjab_19.04.2018.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726489409

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We calculate absorbtion cross-sections of B c mesons by π and ρ mesons with and without form factor including anomalous processes using meson exchange model. For calculating absorption cross sections of J/ψ − π, J/ψ − ρ and J/ψ − kaon, this approach has been used. After the suggestion for charmonium and bottomonium, it has been also suggested for heavy mixed flavor mesons that their production rate would be affected in the presence of quark gluon plasma. The enhancement of Bc production is expected due to QGP formation in heavy-ion experiments. However, in heavy-ion collisions it is also expected that the production rate of Bc meson can be affected due to the interaction with comovers. For the case of J/ψ absorption this problem has been studied quite extensively. The examination of Bc + hadron cross-section is important for extending this study to Bc. To have unambiguous interpretation of the the observed signal, the information of dissociation cross section is also important. In this work the absorption cross section of Bc meson are calculated with and without form factor, related cut-off parameters and using suitable choice of coupling constants. The total absorption cross section of Bc meson with form factor by π meson σBcπ in this work varies from 2.42 − 20.7 mb and σBcρ is found to be in the range of 0.72 − 4.6 mb. Thermal average cross-sections of Bc are evaluated with form factor when cut off parameter is 1 and 2 GeV. Using these thermal average cross-sections in kinetic model, time evolution of Bc meson is studied. This model is based on a schematic hydrodynamic description of expanding hadronic matter formed from central Au+Au collision at RHIC. We found that Bc mesons abundance are affected by almost 8% and 11% by final state interaction when cutoff parameter Λ = 1 and 2 GeV, respectively.
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ن۔م۔راشدؔ

تعارف:
اردو کے یہ منفرد روایت شکن، ترقی پسند شاعر یکم اگست 1910ء میں علی پور چٹھہ، ضلع گوجرانوالہ میں پیدا ہوئے۔ ان کا اصل نام راجا نذر محمد تھا۔ اور تاریخی نام " خضر" تھا۔ آج اردو ادب کی جدید تاریخ ن م راشد کے ذکر کے بغیرنا مکمل ہے۔ وہ جدید شاعری میں آزاد نظم کے بانی، علامت نگاری کی تحریک، نفی دانش کے اولین مشعل بردار ہیں۔
پہلا مجموعہ کلام:
اردو شاعری کو روایتی تنگنائے سے نکال کر بین الاقوامی دھارے میں شامل کرنے کا سہرا ن م راشد اور میرا جی کے سر جاتا ہے۔ 1942ء میں ن م راشد کا پہلا مجموعہ ’ماورا‘ شائع ہوا جو نہ صرف اردو آزاد نظم کا پہلا مجموعہ ہے بلکہ یہ جدید شاعری کی پہلی کتاب بھی ہے۔ ماورا سے اردو شاعری میں انقلاب بپا ہو گیا،اور یہ انقلاب صرف صنفِ سخن یعنی آزاد نظم کی حد تک نہیں تھا، کیوں کہ تصدق حسین خالد پہلے ہی آزاد نظمیں لکھ چکے تھے، لیکن راشد نے اسلوب، موضوعات اور پیش کش کی سطح پر بھی اجتہاد کیا۔
فیض اور راشد:
ن م راشد کا تقابل اکثر فیض احمد فیض کے ساتھ کیا جاتا ہے، لیکن صاف ظاہر ہے کہ نہ صرف فیض کے موضوعات محدود ہیں بلکہ ان کی فکر کا دائرہ بھی راشد کے مقابلے پر تنگ ہے۔ ساقی فاروقی بیان کرتے ہیں :
" فیض نے خود اعتراف کیا تھا کہ وہ راشد کی طرح نظمیں نہیں لکھ سکتے کیوں کہ راشد کا ذہن ان سے کہیں بڑا ہے۔"
فیض اور راشد میں ایک قدرِ مشترک یہ بھی ہے کہ دونوں ترقی پسند شاعروں کے مجموعے دوسری جنگِ عظیم سے پہلے شائع ہوگئے تھے۔ راشد کی ماورا 1940ء اور فیض کی نقشِ فریادی 1941ء میں۔ ماورا نہ صرف اردو آزاد نظم بلکہ جدید اردو...

Penilaian Kualitas dan Risiko Pembiayaan Bank Syari'ah

The quality of productive assets plays a significant role in the success of Islamic banking, not just a mere function. Islamic banks consistently measure their performance by referring to the standard of productive asset quality as a benchmark. The prosperity of an Islamic bank's business substantially depends on its ability to manage investments by adhering to two main principles: the prudence principle and the Sharia principle. The aim of this research is to conduct a comprehensive evaluation of the quality and risks in Islamic bank financing. To face the complexity and dynamics of the Islamic banking world, a qualitative approach was used. The research method is based on the post-positivism philosophical foundation, which views social reality as a whole, dynamic, complex, meaningful, and colored by interactive relationships.

الاعجاز البیانی فی ضوء النصوص القرآنیة

There is no doubt that the Holy Qur'an is a great blessing from Almighty Allah. If this had been the only blessing bestowed on this final Ummah, we would still have surpassed all previous ummahs in blessings. This book is the epitome of sweetness. Its beauty stretches from the tongue of the .2 gam and can be felt in the very depths of the heart of the listener. One can not tire of reading it, nor of listening to it; the more one delves into it, the richer its treasures reveal themselves to be. This book appeals equally to a scholar and a layperson at the same time, and guides them both. It has the power to awaken nations from ignorant slumber, and to show them the path to success. One aspect of this brilliance is the fact that not only does it encompass vast treasures of wisdom and knowledge, but it is also a literary and linguistic miracle. This latter point is expounded further in this present research work. The direct and implied meaning of the text of the Holy Book is indeed beautiful. The very vocabulary and its mesmerizing usage are so apt and balanced that there can be absolutely no comparison. Revealed at the time when Arabia was at the pinnacle of linguistic excellence, nothing could face up to its splendor, attempts by the disbelievers who put together all their resources to this futile end notwithstanding. This was one reason why the opponents of this message, having completely failed this way, resorted to violence and warfare. If they could have countered the linguistic beauty of the Holy Qur'an, the world would not have seen the battles of Badr, Uhud and Khandaq. To illustrate this linguistic miracle of the Holy Qur'an, a few styles have been selected from its vast treasures of Ilm-ul-Bayan. These include, but are not limited to, the vocabulary, the usage of similes and metaphor etc. that challenge human ability and leave it pale in comparison. The Holy Qur'an chooses different styles beautifully based on specific contexts, catering beautifully to the addressee and the message. Where the circumstance calls for simplicity, the Holy Qur'an employs a simple yet brilliant style, and where the need is for eloquence, it engages a sparkling dignity. Thus it is a direct and correct conclusion that the Holy Qur'an's linguistic approach is a string of gems that embodies many different styles; each gem is magnificent on its own, and at the same time, the majesty of the string is revealed even more fully when considered as a whole. A miracle of the Holy Qur'an is that it showcases divine brilliance in a way that is comprehendible by efforts of human knowledge and imagination without compromising its full magnificence. This becomes evident in another way also. It is interesting to note that the best amongst human literature now employs the same vocabulary and similar linguistic techniques, and yet the distinction between the products of the human mind and this divine book has not been bridged at all. 1. Arabic, for the larger Islamic concept of 'nation' that surpasses all geographic boundaries. 2. Arabic, for one who recites. 3. The three battles from the early age of Islam. Holy Qur'an stands to this day, and shall continue to do so for all time, with all its glory as a shining testament to the boundary less divine wisdom and magnificence, for which even the entire creative prowess in the world around us is no match. This research has engaged several noted exegesis of the Holy Qur'an to identify, understand and classify a part of the linguistic magnificence of this divine book. The Glorious Qur'an's eloquent stylizations embody infinite beauty, and showcase the miracle of the brilliance of the divine wisdom. It presents a spectacular combination of eloquence that radiates beauty, and comprehensive conciseness. These are just two of the miracles that form the Holy Qur'an. The characteristics outlined in these preceding lines, and subsequently in this research show the outline of a magnificent picture, and yet this only be labeled as being hardly a drop in the ocean in comparison to the full glory of the Holy Book. I pray to Almighty Allah to accept my endeavor to showcase some of this grandeur in this research, and to make it beneficial for me, and the whole Muslim Ummah.